Filed Pursuant to Rule 424(b)(5)

Registration No. 333-234686

PROSPECTUS SUPPLEMENT
(To Prospectus dated July 20, 2021)

3,520,000 Shares

Tidewater Inc.

Common Stock

We are offering 3,520,000 shares of our common stock, par value $0.001 per share (our “common stock”).

We intend to use the net proceeds from this offering (before expenses) to repurchase from Banyan Overseas Limited, a limited company organized under the laws of Bermuda (“Banyan”), a number of warrants exercisable for shares of our common stock (“Warrants”) equal to the number of shares of our common stock sold in this offering (including any shares sold pursuant to the underwriter’s option to purchase additional shares of our common stock) (the “Repurchase”). The Repurchase is expected to occur substantially concurrently with the closing of this offering. The closing of the Repurchase is conditioned upon the consummation of this offering. In addition, the closing of this offering is conditioned upon the satisfaction or waiver of various conditions, including the consummation of the Repurchase. See “Summary—Recent Developments—Warrant Repurchase” and “Use of Proceeds.”

Our common stock is listed on the New York Stock Exchange (the “NYSE”) under the symbol “TDW.” On August 8, 2022, the last reported sale price of our common stock on the NYSE was $20.46 per share.

Investing in our common stock involves risks that are described in the “Risk Factors” section beginning on page S-6 of this prospectus supplement and on page 3 of the accompanying prospectus, and under similar headings in the other documents that we have filed or that are filed after the date hereof and incorporated by reference into this prospectus supplement and the accompanying prospectus.

We have granted the underwriter an option exercisable within a 30-day period beginning on, and including, the date of this prospectus supplement, to purchase up to 528,000 additional shares of our common stock from us at the public offering price, less the underwriting discounts and commissions. See “Underwriting.” We intend to use the net proceeds from any issuance and sale of such shares of our common stock pursuant to the underwriter’s option (before expenses) to acquire from Banyan an equal number of warrants.

Certain funds associated or affiliated with an existing stockholder and director of the Company have indicated an interest in purchasing up to $10 million of shares of our common stock in this offering, at the public offering price. Because these indications of interest are not binding agreements or commitments to purchase, such entities may elect to purchase fewer shares than they indicate an interest in purchasing or not to purchase any shares in this offering. In addition, the underwriter may elect to sell fewer shares or not to sell any shares in this offering to such entities. The underwriter will receive the same discount from any shares sold to such entities as it will from any other shares sold to the public in this offering. Any shares purchased by such entities in this offering will be subject to lock-up agreements with the underwriter, under which such entities have agreed not to sell any of their shares of our common stock for 90 days following the date of this prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The underwriter expects to deliver the shares on or about August 12, 2022.

Sole Book-Running Manager

The date of this prospectus supplement is August 9, 2022.

TABLE OF CONTENTS

Prospectus Supplement

Prospectus

IMPORTANT NOTICE ABOUT INFORMATION IN THIS PROSPECTUS SUPPLEMENT

You should rely only on the information contained in this prospectus supplement and the accompanying prospectus and in any related free writing prospectus filed by us with the Securities Exchange Commission (the “SEC”). We have not, and Morgan Stanley & Co. LLC (the “underwriter”) has not, authorized anyone to provide any information other than that contained or incorporated by reference in this prospectus supplement, the accompanying prospectus and in any related free writing prospectus or other information to which we have referred you. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. This prospectus supplement and the accompanying prospectus do not constitute an offer to sell, or a solicitation of an offer to purchase, the securities offered by this prospectus supplement and the accompanying prospectus in any jurisdiction where it is or to or from any person to whom or from whom it is unlawful to make such offer or solicitation of an offer in such jurisdiction. You should assume that the information contained and incorporated by reference in this prospectus supplement and the accompanying prospectus is accurate only as of the respective dates of such documents. Our business, financial condition, results of operations and prospects may have changed since the date of such documents.

You should also read and consider the information in the documents to which we have referred you under the caption “Additional Information and Information Incorporated by Reference” in this prospectus supplement.

ABOUT THIS PROSPECTUS SUPPLEMENT

This document is in two parts. The first part is the prospectus supplement, which describes the specific terms of the shares we are offering and also adds to and updates information contained in the accompanying prospectus and the documents incorporated by reference herein and therein. The second part, the accompanying prospectus, including the documents incorporated by reference therein, provides more general information, some of which may not apply to this offering. Generally, when we refer to this prospectus, we are referring to both parts of this document combined. This prospectus supplement and the accompanying prospectus and the documents incorporated by reference herein and therein are part of a “shelf” registration statement that we filed with the SEC. This prospectus supplement and the accompanying prospectus and the documents incorporated by reference herein and therein include important information about us, our shares being offered and other information you should know before investing in our shares. Before purchasing any securities, you should read carefully this prospectus supplement, the accompanying prospectus and the documents incorporated by reference in this prospectus supplement and the accompanying prospectus, as well as the additional information described under “Additional Information and Information Incorporated by Reference” on page S-27 of this prospectus supplement and on page 30 of the accompanying prospectus.

To the extent there is a conflict between the information contained in this prospectus supplement, on the one hand, and the information contained in the accompanying prospectus or in any document incorporated by reference that was filed with the SEC before the date of this prospectus supplement, on the other hand, you should rely on the information in this prospectus supplement. If any statement in one of these documents is inconsistent with a statement in another document having a later date — for example, a document incorporated by reference in the accompanying prospectus — the statement in the document having the later date modifies or supersedes the earlier statement.

This prospectus supplement also includes trademarks, trade names and service marks of other companies, which are the property of their respective holders. Use or display by us of other parties’ trademarks, trade names or service marks is not intended to and does not imply a relationship with, or endorsement or sponsorship of us by, these other parties other than as described herein.

When used in this prospectus supplement and the accompanying prospectus, the terms “Tidewater,” “the Company,” “we,” “our” and “us” refer to Tidewater Inc. and its subsidiaries, unless otherwise indicated or the context otherwise requires.

SUMMARY FINANCIAL DATA

The following table sets forth our summary financial and operating data as of June 30, 2022 and 2021 and December 31, 2021, and 2020, and for the three months ended June 30, 2022, for the six months ended June 30, 2022 and 2021, and for the years ended December 31, 2021, 2020 and 2019. The summary historical and financial data were derived from the unaudited and audited historical financial statements of Tidewater Inc. incorporated by reference in this prospectus supplement and the accompanying base prospectus. The summary historical financial data as of December 31, 2019 were derived from the audited historical financial statements of Tidewater Inc. not incorporated by reference in this prospectus supplement. We have prepared the unaudited information on the same basis as the audited historical financial statements and have included all adjustments, consisting only of normal recurring adjustments, that we consider necessary for a fair statement of our financial position and operating results for such period. Our historical results are not necessarily indicative of the results that may be expected or may actually occur in the future, and our interim results are not necessarily indicative of the expected results for future interim periods or the full year.

You should read this summary financial data in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2021 and our Quarterly Reports on Form 10-Q for the three months ended March 31, 2022 and June 30, 2022, as well as our historical financial statements and accompanying notes included therein, which are incorporated by reference in this prospectus supplement.

RISK FACTORS

Our business, financial condition and operating results can be affected by a number of factors, whether currently known or unknown, including but not limited to those described in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein and therein or in our filings with the SEC, any one or more of which could, directly or indirectly, cause our actual financial condition and operating results to vary materially from those anticipated, projected or assumed in the forward-looking statements. Any of these factors, in whole or in part, could materially and adversely affect our business, prospects, financial condition, results of operations, stock price and cash flows. We may experience additional risks and uncertainties not currently known to us; or, as a result of developments occurring in the future, conditions that we currently deem to be immaterial may also materially and adversely affect our business, financial condition, cash flows, and results of operations. These could also be affected by additional factors that apply to all companies generally which are not specifically mentioned below. The price of our securities could decline and you could lose part or all of your investment.

Investing in our securities involves certain risks. Before you invest in our securities, you should carefully consider those risk factors set forth below as well as the risks described under, but not limited to, the heading “Risk Factors” in our most recent Annual Report on Form 10-K, our Quarterly Report on Form 10-Q for the quarter ended March 31, 2022, our Quarterly Report on Form 10-Q for the quarter ended June 30, 2022, the Current Reports on Form 8-K, filed with the SEC on April 26, 2022 and August 9, 2022 and any subsequently filed Current Reports on Form 8-K (other than, in each case, information furnished rather than filed), which are incorporated by reference herein, and those risk factors included in the accompanying prospectus, together with all of the other information included in this prospectus supplement, the accompanying prospectus and the documents we incorporate by reference, in evaluating an investment in our securities. The risks and uncertainties described in this prospectus supplement, the accompanying prospectus, or incorporated by reference into this prospectus are not the only risks and uncertainties we face. The risks described also include forward-looking statements and our actual results may differ substantially from those discussed in these forward-looking statements. Please read “Cautionary Statement Regarding Forward-Looking Statements.” For access to documents that are incorporated by reference into this prospectus supplement, please see the section entitled, “Additional Information and Information Incorporated by Reference” beginning on page S-27.

Our actual results of operations may differ materially from the unaudited pro forma financial data incorporated by reference in this prospectus supplement.

The unaudited pro forma financial data incorporated by reference in this prospectus supplement are not necessarily indicative of what our actual results of operations would have been for the year ended December 31, 2021 had the Acquisition been completed on the date indicated, nor are they necessarily indicative of future results of operations for any future period. The unaudited pro forma financial data have been derived from our audited financial statements and TPOHL’s audited financial statements and accounting records, and reflect assumptions and adjustments that are based upon estimates that are subject to change. The purchase price allocation for the TPOHL acquisition as of the closing date of April 22, 2022 is preliminary and may change upon completion of the determination of the fair value of assets acquired and liabilities assumed, and the final purchase price allocation may be different from that reflected in the pro forma purchase price allocation incorporated by reference in this prospectus supplement. Accordingly, the final acquisition accounting adjustments may differ materially from the pro forma adjustments reflected in the documents incorporated by reference into this prospectus supplement, and other factors not presented in such unaudited pro forma financial data may adversely affect our financial condition or results of operations.

Sales of a significant number of shares of our common stock in the public markets, or the perception that such sales could occur, could depress the market price of our common stock.

Sales of a significant number of shares of our common stock in the public markets, or the perception that such sales could occur as a result of our utilization of a universal shelf registration statement or otherwise could depress the market price of our common stock and impair our ability to raise capital through the sale of additional equity securities. We cannot predict the effect that future sales of our common stock or the market perception that we may sell a significant number of our securities would have on the market price of our common stock.

Future sales or issuances of our common stock may dilute the ownership interest of existing stockholders and depress the trading price of our common stock.

We cannot predict the effect, if any, that future sales of our common stock or the availability of our common stock for future sale, will have on the market price of shares of our common stock. Future sales or issuances of our common stock would dilute the ownership interests of our existing stockholders, including purchasers of common stock in this offering. In addition, future sales or issuances of substantial amounts of our common stock may be at prices below the offering price of the shares offered by this prospectus supplement and may adversely impact the market price of our common stock and the terms upon which we may obtain additional financing in the future. The perception that such sales or issuances may occur could also negatively impact the market price of our common stock.

If securities or industry analysts do not publish research or publish an inaccurate or unfavorable opinion regarding our business or stock, our stock price and trading volume could decline. In addition, if securities or industry analysts do not publish research about our business or stock, it may be more difficult for you to evaluate our performance and operations.

The trading market for our common stock is influenced, in part, by the research and reports that securities or industry analysts may publish about us, our business, our market or our competitors. If any of the analysts who may cover us adversely change its recommendation regarding our common stock, or provide more favorable relative recommendations about our competitors, the trading price of our common stock could decline. If any analyst who may cover us were to cease coverage of us or fail to regularly publish reports on us, we could lose visibility in the financial markets, which in turn could cause the trading price of our common stock or trading volume to decline. In addition, if securities or industry analysts do not publish research about our business or stock, it may be more difficult for you to evaluate our performance and operations and the price of our common stock could decline substantially. Such a stock price decline could occur even when we have met any previously publicly stated revenue or earnings forecasts that we may provide.

The price of our common stock may be volatile and fluctuate substantially.

Our stock price is likely to be volatile. Global stock markets in general have recently experienced extreme volatility primarily as a result of increased inflation, the current invasion of Ukraine, the ongoing COVID-19 coronavirus pandemic and certain macroeconomic factors. The market price for our common stock may be influenced by many factors, including:

In the past, following periods of extreme volatility in the market price of a company’s securities, securities class-action litigation has often been instituted against that company. Any lawsuit to which we are a party, with or without merit, may result in an unfavorable judgment. We also may decide to settle lawsuits on unfavorable terms. Any such negative outcome could result in payments of substantial damages or fines, damage to our reputation or adverse changes to our offerings or business practices. Such litigation may also cause us to incur other substantial costs to defend such claims and divert management’s attention and resources.

Our common stock is subject to restriction on foreign ownership and possible required divestiture by non-U.S. Citizen stockholders. If the permitted limit of ownership by non-U.S. Citizens is reached, including as a result of the sale of common stock in this offering, any purported transfer of our common stock will be null and void; and any voting, dividend or other rights associated with such common stock will be ineffective, and shares of our common stock beneficially owned by non-U.S. Citizens may become subject to redemption by us.

Certain of our operations are conducted in the U.S. coastwise trade and are governed by the U.S. federal law commonly known as the Jones Act. The Jones Act restricts waterborne transportation of goods and passengers between points in the U.S. to vessels owned and controlled by “U.S. Citizens” as defined thereunder. We could lose the privilege of owning and operating vessels in the Jones Act trade if non-U.S. Citizens were to own or control, in the aggregate, more than 25% of our common stock. Such loss could have a material adverse effect on our results of operations.

Our Amended and Restated Certificate of Incorporation and Second Amended and Restated By-Laws authorize our Board of Directors to establish with respect to any class or series of our capital stock certain rules, policies and procedures, including procedures with respect to the transfer of shares, to ensure compliance with the Jones Act. In order to provide a reasonable margin for compliance with the Jones Act, our Board of Directors has determined that, all non-U.S. Citizens in the aggregate may own up to 24% of the outstanding shares of common stock and any individual non-U.S. Citizen may own up to 4.9% of the outstanding shares of common stock.

At and during such time that the permitted limit of ownership by non-U.S. Citizens is reached with respect to shares of common stock, as applicable, we will be unable to issue any further shares of such class of common stock or approve transfers of such class of common stock to non-U.S. Citizens. Any purported transfer of our common stock in violation of these ownership provisions will be ineffective to transfer the common stock or any voting, dividend or other rights associated with such common stock. Furthermore, if non-U.S. Citizens acquire shares of our common stock in excess of the permitted percentages, such shares may become subject to redemption by us, either through issuance of warrants, cash or notes, in accordance with the procedures set out in our Amended and Restated Certificate of Incorporation and Second Amended and Restated By-Laws and thus, you may lose your rights as a stockholder. The existence and enforcement of these requirements could have an adverse impact on the liquidity or market value of our equity securities if U.S. Citizens were unable to transfer our shares to non-U.S. Citizens. Furthermore, under certain circumstances, this ownership requirement could discourage, delay or prevent a change of control.

Any shares sold to certain funds associated or affiliated with an existing stockholder and director of the Company will not increase our public float.

Certain funds associated or affiliated with an existing stockholder and director of the Company, have indicated an interest in purchasing up to $10 million of shares of our common stock in this offering, at the public offering price. Because these indications of interest are not binding agreements or commitments to purchase, such entities may elect to purchase fewer shares than they indicate an interest in purchasing or not to purchase any shares in this offering. In addition, the underwriter may elect to sell fewer shares or not to sell any shares in this offering to such entities. If such entities are allocated all or a portion of the shares they have indicated an interest to purchase in this offering and purchase any such shares, such purchase would not increase the available public float for our shares because such entities would be restricted from selling the shares for a period of 90 days by lock-up agreements they have entered into with the underwriter and by restrictions under applicable securities laws. As a result, any purchase of shares by such entities in this offering may reduce the liquidity of our common stock relative to what it would have been if those shares had been sold to the public.

We may have difficulty attracting, motivating and retaining executives and other key personnel, including crews for our vessels. The success of our business depends on the efforts and skill of our senior management team and other key personnel and on our ability to adequately crew our vessels.

Uncertainty about the effect of changes to our company and about the changes we have made or may make to the organizational structure may impair our ability to attract and retain key personnel and crewing our vessels in the future. The market for qualified personnel is highly competitive, which may further reduce or restrict the availability of qualified personnel, particularly with respect to certain technical and engineering positions, including marine officers. In addition, our industry has lost a significant number of experienced professionals over the years due to its cyclical nature, which is attributable, among other reasons, to geopolitical factors, the levels of oil and natural gas prices and a more generalized concern about the overall future prospects of the industry.

If executives, managers or other key personnel, including vessel crew, resign, retire or are terminated or their service is otherwise interrupted, we may not be able to replace them in a timely manner and we could experience significant declines in productivity. These uncertainties could affect our relationship with customers, vendors and other parties. Accordingly, no assurance can be given that we will be able to attract, retain and motivate executives, managers, other key personnel and/or vessel crew to the same extent as in the past.

We are subject to the effects of changing prices.

Inflation rates have been relatively low and stable over the previous three decades; however, in 2022 due in part to supply chain disruptions and the effects of the COVID-19 pandemic, inflation rates began to rise significantly. We bear the costs of operating and maintaining our assets, including labor and material costs as well as recertification and drydock costs. Although we are able to reduce some of our exposure to price increases through the rates we charge, competitive market pressures may affect our ability to pass along price adjustments, which may result in reductions in our operating margins and cash flows in the future.

Failure to maintain an acceptable safety record may have an adverse impact on our ability to retain customers.

Our customers consider safety and reliability a primary concern in selecting a service provider. We must maintain a record of safety and reliability that is acceptable to our customers. Should this not be achieved, the ability to retain current customers and attract new customers may be adversely affected, which in turn could have a material adverse effect on our business, financial position, results of operations, cash flows and prospects.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This prospectus supplement and the accompanying prospectus and the documents incorporated by reference herein and therein include certain “forward-looking statements” within the meaning of, and subject to the safe harbor created by, Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements are all statements other than statements of historical fact. All such forward-looking statements are subject to risks and uncertainties, many of which are beyond the control of the Company, and our future results of operations could differ materially from our historical results or current expectations reflected by such forward-looking statements. Some of these risks and uncertainties are discussed in Tidewater’s most recent Annual Report on Form 10-K, including in Item 1A. “Risk Factors”, our Quarterly Report on Form 10-Q for the quarter ended March 31, 2022, our Quarterly Report on Form 10-Q for the quarter ended June 30, 2022, the Current Report on Form 8-K, filed with the SEC on April 26, 2022, which are incorporated by reference into this prospectus supplement, and include, without limitation, the risks related to fluctuations in worldwide energy demand and oil and natural gas prices, and levels of oil and natural gas prices including the levels to support offshore exploration and development activities; fleet additions by competitors and industry overcapacity; our limited capital resources available to replenish our asset base as needed, including through acquisitions or vessel construction, and to fund our capital expenditure needs; uncertainty of global financial market conditions and potential constraints in accessing capital or credit if and when needed with favorable terms, if at all; changes in decisions and capital spending by customers in the energy industry and the industry expectations for offshore exploration, field development and production; consolidation of our customer base; loss of a major customer; changing customer demands for vessel specifications, which may make some of our older vessels technologically obsolete for certain customer projects or in certain markets; rapid technological changes; delays and other problems associated with vessel maintenance; the continued availability of qualified personnel and our ability to attract and retain them; the operating risks normally incident to our lines of business, including the potential impact of liquidated counterparties; our ability to comply with covenants in our indentures and other debt instruments; acts of terrorism and piracy; the impact of regional or global public health crises or pandemics; the impact of potential information technology, cybersecurity or data security breaches; integration of acquired businesses and entry into new lines of business; disagreements with our joint venture partners; natural disasters or significant weather conditions; unsettled political conditions, war, civil unrest and governmental actions, such as expropriation or enforcement of customs or other laws that are not well developed or consistently enforced; the risks associated with our international operations, including local content, local currency or similar requirements especially in higher political risk countries where we operate; interest rate and foreign currency fluctuations; labor changes proposed by international conventions; increased regulatory burdens and oversight; changes in laws governing the taxation of foreign source income; enforcement of laws related to the environment, labor and foreign corrupt practices; the potential liability for remedial actions or assessments under existing or future environmental regulations or litigation; the effects of asserted and unasserted claims and the extent of available insurance coverage; potential synergies and integration risks related to the SPO acquisition; and the resolution of pending legal proceedings.

Forward-looking statements, which can generally be identified by the use of such terminology as “may,” “can,” “potential,” “expect,” “project,” “target,” “anticipate,” “estimate,” “forecast,” “believe,” “think,” “could,” “continue,” “intend,” “seek,” “plan” and similar expressions contained in this prospectus supplement and the accompanying prospectus and the documents incorporated by reference herein and therein, including in Tidewater’s most recent Annual Report on Form 10-K, as updated by its subsequent filings with the SEC, are not guarantees or assurances of future performance or events. Any forward-looking statements are based on Tidewater’s assessment of current industry, financial and economic information, which by its nature is dynamic and subject to rapid and possibly abrupt changes, which Tidewater may or may not be able to control. Further, Tidewater may make changes to its business plans that could or will affect its results. While management believes that these forward-looking statements are reasonable when made, there can be no assurance that future developments that affect Tidewater will be those that we anticipate and have identified. The forward-looking statements should be considered in the context of the risk factors listed above and discussed in greater detail in Tidewater’s most recent Annual Report on Form 10-K, as updated by its subsequent filings with the SEC. Management disclaims any obligation to update or revise any forward-looking statements contained herein to reflect new information, future events or developments. All of the forward-looking statements made by Tidewater in this prospectus supplement and the accompanying prospectus and the documents incorporated by reference herein and therein are qualified by the information contained herein, including the information contained under this heading.

Tidewater undertakes no obligation to publicly release the result of any revisions to any such forward-looking statements that may be made to reflect events or circumstances that occur, or of which it becomes aware. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof.

USE OF PROCEEDS

The net proceeds from our issuance and sale of common stock are expected to be approximately $61,416,960 (or approximately $70,629,504 if the underwriter exercises in full its option to purchase additional shares of our common stock), after deducting the underwriter’s discounts and commissions and before deducting estimated offering expenses payable by us.

We intend to use the net proceeds from this offering (before expenses) to repurchase from Banyan a number of Warrants equal to the number of shares of our common stock sold in this offering (including any shares sold pursuant to the underwriter’s option to purchase additional shares of our common stock), which repurchase is expected to occur substantially concurrently with the closing of this offering pursuant to the Warrant Repurchase Agreement and the Warrant Escrow Agreement. Under the Warrant Repurchase Agreement, the aggregate purchase price payable by us to Banyan will be equal to the aggregate net proceeds from this offering (before expenses) and the purchase price per Warrant payable by us to Banyan will be equal to the price per share of common stock paid by the underwriter to us in this offering. We will not retain any of the proceeds from the sale of shares of our common stock in this offering.

U.S. FEDERAL INCOME TAX CONSIDERATIONS FOR NON-U.S. HOLDERS

The following discussion summarizes certain U.S. federal income tax considerations relevant to the acquisition, ownership and disposition of shares of our common stock by Non-U.S. Holders (as defined below) and does not purport to be a complete analysis of all potential U.S. federal income tax considerations. This discussion only applies to shares of our common stock that are held as capital assets within the meaning of section 1221 of the Internal Revenue Code of 1986, as amended (the “Code”), and that are purchased in the offering at the public offering price by Non-U.S. Holders. This summary is based on the Code, published administrative pronouncements, judicial decisions and regulations of the U.S. Treasury Department, changes to any of which subsequent to the date of this prospectus supplement may affect, potentially with retroactive effect, the tax consequences described herein. This discussion does not describe all of the U.S. federal income tax considerations that may be relevant to Non-U.S. Holders in light of their particular circumstances or to Non-U.S. Holders subject to special rules, such as, for example, banks and other financial institutions, tax-exempt organizations, insurance companies, traders or dealers in securities or commodities, persons holding shares of our common stock as part of a hedge, straddle or other integrated transaction, accrual method taxpayers subject to special tax accounting rules under section 451(b) of the Code, controlled foreign corporations, passive foreign investment companies or certain former citizens or residents of the United States. This discussion does not address any U.S. federal income tax consequences for U.S. Holders (as defined below) who purchase shares of our common stock. Persons considering the purchase of shares of our common stock are urged to consult their own tax advisors with regard to the application of the U.S. federal income tax laws to their particular situations as well as any tax consequences arising under the laws of any state, local or non-U.S. taxing jurisdiction. Furthermore, this discussion does not describe the effect of U.S. federal estate and gift tax laws, the Medicare tax on net investment income, the alternative minimum tax or the effect of any applicable state, local or non-U.S. laws.

We have not and will not seek any rulings or opinions from the Internal Revenue Service (the “IRS”) with respect to the matters discussed below. There can be no assurance that the IRS will not take a different position concerning the tax consequences of the acquisition, ownership or disposition of shares of our common stock or that any such position would not be sustained.

Prospective investors should consult their own tax advisors with regard to the application of the U.S. federal income tax considerations discussed below to their particular situations as well as the application of any state, local, non-U.S. or other tax laws, including gift and estate tax laws.

Non-U.S. Holder Defined

For purposes of this summary, a “Non-U.S. Holder” means a beneficial owner of shares of our common stock that, for U.S. federal income tax purposes, is neither a partnership (including an entity or arrangement treated as a partnership for U.S. federal income tax purposes) nor a “U.S. Holder.” A “U.S. Holder” is a beneficial owner of shares of our common stock that, for U.S. federal income tax purposes, is (i) an individual that is a citizen or resident of the United States; (ii) a corporation or other entity treated as a corporation for U.S. federal income tax purposes that is created or organized under the laws of the United States, any state thereof or the District of Columbia; (iii) an estate the income of which is subject to U.S. federal income taxation regardless of its source; or (iv) a trust if (A) a court within the United States is able to exercise primary supervision over its administration and one or more United States persons (as defined in the Code) have the authority to control all substantial decisions of such trust, or (B) the trust has made an election under the applicable Treasury regulations to be treated as a United States person.

If a partnership, or other entity or arrangement treated as a partnership for U.S. federal income tax purposes, holds shares of our common stock, the tax treatment of a partner in the partnership will generally depend upon the status of the partner and the activities of the partnership. Partners in a partnership holding shares of our common stock should consult their own tax advisors as to the particular U.S. federal income tax considerations applicable to them of the acquisition, ownership and disposition of shares of our common stock.

Distributions

In general, a distribution that we make to a Non-U.S. Holder with respect to shares of our common stock will constitute a dividend for U.S. federal income tax purposes to the extent paid out of our current or accumulated earnings and profits as determined under the Code. Subject to the discussions below under “—Information Reporting and Backup Withholding” and “—Foreign Account Tax Compliance Act,” dividends paid to a Non-U.S. Holder that are not effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States will generally be subject to U.S. federal withholding tax at a rate of 30% of the gross amount of the dividends (unless such dividend is eligible for a reduced rate under an applicable income tax treaty). In order to obtain a reduced rate of withholding, a Non-U.S. Holder is generally required to provide to the applicable withholding agent an IRS Form W-8BEN or W-8BEN-E (or a suitable substitute form) properly certifying such Non-U.S. Holder’s eligibility for the reduced rate. Non-U.S. Holders that do not timely provide the applicable withholding agent with the required certification, but that qualify for a reduced withholding rate, may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for a refund with the IRS. Non-U.S. Holders should consult their own tax advisors regarding their entitlement to benefits under an applicable income tax treaty and the timing and manner of claiming treaty benefits.

Subject to the discussions below under “—Information Reporting and Backup Withholding” and “—Foreign Account Tax Compliance Act,” dividends that are effectively connected with a Non-U.S. Holder’s conduct of a trade or business in the United States and, if required by an applicable income tax treaty, are attributable to a permanent establishment maintained by the Non-U.S. Holder in the United States, are taxed on a net income basis at the regular graduated rates and in the manner applicable to U.S. Holders. A Non-U.S. Holder is required to provide to the applicable withholding agent a properly executed IRS Form W-8ECI (or a suitable substitute form) in order to claim an exemption from U.S. federal withholding as a result of a distribution being effectively connected with the Non-U.S. Holder’s conduct of a trade or business in the United States. In addition, a “branch profits tax” may be imposed at a 30% rate (or at a reduced rate under an applicable income tax treaty) on a foreign corporation’s effectively connected earnings and profits for the taxable year, as adjusted for certain items.

Sale or Other Taxable Disposition of Our Common Stock

Subject to the discussions below under “Information Reporting and Backup Withholding,” a Non-U.S. Holder generally will not be subject to U.S. federal withholding tax with respect to gain, if any, recognized on the sale or other taxable disposition of shares of our common stock. A Non-U.S. Holder will also generally not be subject to U.S. federal income tax with respect to such gain, unless (i) the gain is effectively connected with the conduct by such Non-U.S. Holder of a trade or business within the United States and, if required by an applicable income tax treaty, is attributable to a permanent establishment maintained by the Non-U.S. Holder within the United States, (ii) in the case of a Non-U.S. Holder that is a nonresident alien individual, such Non-U.S. Holder is present in the United States for 183 or more days in the taxable year of the disposition and certain other conditions are satisfied, or (iii) our common stock constitutes a U.S. real property interest by reason of our status as a U.S. real property holding corporation (a “USRPHC”), for U.S. federal income tax purposes.

In the case described in (i) above, gain or loss recognized on the disposition of shares of our common stock generally will be subject to U.S. federal income taxation in the same manner as if such gain or loss were recognized by a U.S. Holder and, in the case of a Non-U.S. Holder that is a foreign corporation, may also be subject to the branch profits tax at a rate of 30% (or at a lower applicable treaty branch profits tax rate). In the case described in (ii) above, the Non-U.S. Holder will be subject to a 30% tax (or a lower applicable treaty rate) on any capital gain recognized on the disposition of shares of our common stock (after being offset by certain U.S.-source capital losses, if applicable and if certain U.S. income tax filing obligations are satisfied).

In the case described in (iii) above, we believe that we have not been and currently are not a USRPHC, and we do not expect to become one in the future based on our anticipated business operations. However, because the determination of whether we are a USRPHC depends on the fair market value of our U.S. real property relative to the fair market value of our worldwide real property interests and other business assets, there can be no assurance that we are not currently or will not in the future become a USRPHC. Even if we are or become a USRPHC, so long as shares of our common stock continues to be regularly traded on an established securities market in the United States, within the meaning of applicable Treasury regulations, a Non-U.S. Holder will not be subject to U.S. federal income tax on the disposition of shares of our common stock if the Non-U.S. Holder has not held more than 5% (actually or constructively) of our total outstanding common stock at any time during the shorter of the five-year period preceding the date of disposition or such Non-U.S. Holder’s holding period. If a Non-U.S. Holder exceeds the limits described in the preceding sentence with respect to our common stock or if our common stock ceases to be regularly traded on a establish securities market in the United States and, in both instances, we are a USRPHC, the Non-U.S. Holder generally will be subject to U.S. federal income tax at the regular graduated rates applicable to U.S. Holders upon its disposition at a gain. A Non-U.S. Holder generally would also be subject to such tax with respect to any distribution on such common stock to the extent such distribution would not be treated as a dividend if such Non-U.S. Holder were a U.S. Holder. If a Non-U.S. Holder is subject to the tax described in the preceding sentences, the Non-U.S. Holder will be required to file a U.S. federal income tax return with the IRS.

Non-U.S. Holders should consult their own tax advisors regarding the U.S. federal income tax consequences of investing in our common stock if we were to be treated as a USRPHC and any potentially applicable income tax treaties that may provide for different rules than those discussed above.

Information Reporting and Backup Withholding

Information returns will be filed annually with the IRS in connection with any dividends paid on our common stock to a Non-U.S. Holder. Copies of these information returns may also be made available under the provisions of a specific tax treaty or other agreement to the tax authorities of the country in which the Non-U.S. Holder resides. Unless the Non-U.S. Holder complies with certification procedures to establish that it is not a United States person, information returns may be filed with the IRS in connection with the proceeds from a sale or other disposition, and the Non-U.S. Holder may be subject to backup withholding (currently at a rate of 24%) on dividends paid on our common stock or on the proceeds from a sale or other disposition of shares of our common stock. The certification procedures required to claim the exemption from withholding on payments described above will satisfy the certification requirements necessary to avoid the backup withholding as well. Backup withholding is not an additional tax. The amount of any backup withholding from a payment to a Non-U.S. Holder generally will be allowed as a credit against the Non-U.S. Holder’s U.S. federal income tax liability and may entitle the Non-U.S. Holder to a refund, provided that the required information is furnished to the IRS in a timely manner.

Foreign Account Tax Compliance Act

Under the Foreign Account Tax Compliance Act and related IRS guidance concerning foreign account tax compliance rules (“FATCA”), a 30% U.S. federal withholding tax is imposed on certain payments (which include dividends paid on our common stock) made to a “non-financial foreign entity” that fails to take required steps to provide information regarding its “United States accounts” or its direct or indirect “substantial United States owners,” as applicable, or to make a required certification that it has no such accounts or owners. FATCA also imposes a 30% U.S. federal withholding tax on certain payments made to a “foreign financial institution” (as specially defined under these rules) unless such institution enters into an agreement with the U.S. government to withhold on certain payments made and to collect and provide the U.S. tax authorities with certain information regarding certain U.S. account holders of such institution or an exemption applies. An intergovernmental agreement between the United States and an applicable foreign country may modify these requirements. We will not be obligated to make any “gross up” or additional payments in respect of amounts withheld on shares of our common stock if we determine that we must so withhold in order to comply with FATCA in respect of the amounts described above. Prospective investors should consult their own tax advisors regarding FATCA and whether it may be relevant to the ownership and disposition of shares of our common stock.

CERTAIN ERISA AND RELATED CONSIDERATIONS

The following is a summary of certain considerations associated with the purchase of our common stock (including any interest in common shares) by (i) employee benefit plans subject to Title I of the U.S. Employee Retirement Income Security Act of 1974, as amended, which we refer to as “ERISA,” (ii) plans, individual retirement accounts or other arrangements subject to Section 4975 of the Internal Revenue Code of 1986, as amended, which we refer to as the “Code” or provisions under any other U.S. or non-U.S. federal, state, local or other laws or regulations that are similar to such provisions of ERISA or the Code, which we collectively refer to as “Similar Laws,” and (iii) entities whose underlying assets are considered to include “plan assets” of such employee benefit plans, plans, accounts or arrangements pursuant to ERISA or otherwise (each of the foregoing described in clause (i), (ii) and (iii) referred to as a “Plan” for the purposes of this “Certain ERISA and Related Considerations” section).

General Fiduciary Matters

ERISA imposes certain duties on persons who are fiduciaries of a Plan subject to Title I of ERISA (each, an “ERISA Plan”). Each fiduciary of an ERISA Plan should consider the fiduciary standards of ERISA in the context of the ERISA Plan’s particular circumstances before authorizing an investment in our common stock. Accordingly, among other factors, the fiduciary should consider whether the investment would satisfy the applicable prudence, delegation of control, diversification and conflicts of interest provisions of ERISA and would be consistent with the documents and instruments governing the Plan. Similar considerations may apply to Plans that are subject to Similar Law.

Prohibited Transaction Issues

Section 406 of ERISA and Section 4975 of the Code prohibit ERISA Plans and plans subject to Section 4975 of the Code (together “Covered Plans”) from engaging in certain transactions involving “plan assets” with persons that are “parties in interest” under ERISA or “disqualified persons” under Section 4975 of the Code with respect to such Plans, including transactions involving prohibited conflicts of interests. A violation of these “prohibited transaction” rules may result in an excise tax or other liabilities under ERISA and/or Section 4975 of the Code for those persons, unless exemptive relief is available under an applicable statutory or administrative exemption. For example, prohibited transactions within the meaning of Section 406 of ERISA or Section 4975 of the Code could arise if common stock (including any interest in a share of common stock) were acquired by a Covered Plan with respect to which we or any underwriter, or any of our or their respective affiliates are a party in interest or a disqualified person (the “Transaction Entities”). If any underwriter or we are a party in interest or disqualified person with respect to an investing Covered Plan (either directly or, in our case, by reason of our ownership of our subsidiaries), the purchase of our common stock by the Plan could result in a sale or exchange that is prohibited by Section 406(a)(1)(A) of ERISA and Section 4975(c)(1)(A) of the Code, unless exemptive relief were available under an applicable exemption (see below).

The U.S. Department of Labor has issued prohibited transaction class exemptions, or PTCEs, that may potentially provide exemptive relief for direct or indirect prohibited transactions resulting from the purchase, holding or disposition of our common stock by a Covered Plan. Those class exemptions include, without limitation: PTCE 96-23 - for certain transactions determined by in-house asset managers; PTCE 95-60 - for certain transactions involving insurance company general accounts; PTCE 91-38 - for certain transactions involving bank collective investment funds; PTCE 90-1 - for certain transactions involving insurance company separate accounts; and PTCE 84-14 - for certain transactions determined by independent qualified professional asset managers. In addition, ERISA Section 408(b)(17) and Code Section 4975(d)(20) each provides an exemption for the purchase by, and sale of securities to, a service provider to the Covered Plan, provided that neither the service provider nor any of its affiliates is a fiduciary to the Plan and provided further that the Plan pays no more than adequate consideration in connection with the transaction (the so-called “service provider exemption”). Each of the above-noted exemptions contains conditions and limitations on its application. Fiduciaries of Covered Plans considering our common stock, including any interest in a share of common stock, in reliance on these or any other exemption should carefully review the exemptions to assure an exemption is applicable to all prohibited transactions that might arise in connection with an investment in our common stock. No assurance can be made that all of the conditions of any such exemption or any other exemption will be satisfied with regard to any investment in our common stock.

Plans that are governmental plans (as defined in Section 3(32) of ERISA), certain church plans (as defined in Section 3(33) of ERISA) and non-U.S. plans (as described in Section 4(b)(4) of ERISA) are not subject to the requirements of ERISA or Section 4975 of the Code, but may be subject to Similar Laws.

Representations

Because of the possibility that direct or indirect prohibited transactions or violation of applicable Similar Laws could occur as a result of the purchase, holding or disposition of our common stock or any interest in our common stock by a Plan, our common stock may not be purchased by any Plan, or any person investing the assets of any Plan, unless its purchase, holding and disposition of our common stock will not constitute or result in a non-exempt prohibited transaction under ERISA or Section 4975 of the Code or a violation of any Similar Laws.

Each purchaser or holder of our common stock or any interest in our common stock will be deemed to have represented by its purchase and holding of the common stock that either: (i) it is not a Plan, and is not purchasing or holding the common stock with the assets of a Plan; or (ii) its investment in our common stock will not constitute or result in a non-exempt prohibited transaction under Section 406 of ERISA or Section 4975 of the Code or a similar violation of any applicable Similar Laws. If any purchaser or subsequent transferee of our common stock or any interest therein is using assets of a Covered Plan to acquire or hold our common stock, such purchaser and subsequent transferee will be deemed to represent and warrant that none of the Transaction Entities has acted or will act as the Plan’s fiduciary with respect to the Plan’s investment in our common stock (unless an exemption applies).

The discussion set forth above is general in nature and is not intended to be all inclusive, nor should it be construed as legal advice. Each Plan fiduciary who is responsible for making the investment decisions whether to invest in our common stock must determine for itself whether under the general fiduciary standards of investment prudence and diversification and under the documents and instruments governing the Plan, an investment in our common stock is appropriate for the Plan, and that the purchase and holding of our common stock does not violate, as applicable, the rules under ERISA, the Code or applicable Similar Laws. Purchasers of our common stock and of interests therein have the exclusive responsibility for ensuring that their investment in our common stock complies with the applicable fiduciary responsibility rules of ERISA and the Code, and that such investment will not result in a violation of the prohibited transaction rules of ERISA, the Code or applicable Similar Laws.

Due to the complexity of these rules and the excise taxes, penalties and liabilities that may be imposed upon persons involved in non-exempt prohibited transactions, it is particularly important that fiduciaries or other persons considering the purchase and/or holding of our common stock on behalf of, or with the assets of, any Plan consult with its counsel regarding the consequences under ERISA, the Code and any applicable Similar Laws to such transactions and, to the extent necessary, whether an exemption would be applicable to an investment in our common stock. The sale of our common stock or any interest in our common stock to any Plan is in no respect a representation or recommendation by us or any of our affiliates or representatives that such an investment meets all relevant legal requirements with respect to investments by such Plan, or that such investment is advisable or appropriate for Plans generally or for any specific Plan.

UNDERWRITING 

Under the terms and subject to the conditions in an underwriting agreement dated the date of this prospectus supplement, Morgan Stanley & Co. LLC has agreed to purchase, and we have agreed to sell to Morgan Stanley & Co. LLC the number of shares indicated below:

The underwriter is offering the shares of common stock subject to its acceptance of the shares from us and subject to prior sale. The underwriting agreement provides that the obligations of the underwriter to pay for and accept delivery of the shares of common stock offered by this prospectus supplement are subject to the approval of certain legal matters by its counsel and to certain other conditions. The underwriter is obligated to take and pay for all of the shares of common stock offered by this prospectus supplement if any such shares are taken. However, the underwriter is not required to take or pay for the shares covered by the underwriter’s option to purchase additional shares described below.

The underwriter initially proposes to offer part of the shares of common stock directly to the public at the offering price listed on the cover page of this prospectus supplement and part to certain dealers at a price that represents a concession not in excess of $0.2412 per share under the public offering price. After the initial offering of the shares of common stock, the offering price and other selling terms may from time to time be varied by the underwriter.

We have granted to the underwriter an option, exercisable for 30 days from the date of this prospectus supplement, to purchase up to 528,000 additional shares of common stock at the public offering price listed on the cover page of this prospectus supplement, less underwriting discounts and commissions.  To the extent the option is exercised, the underwriter will become obligated, subject to certain conditions, to purchase about the same percentage of the additional shares of common stock as the number listed next to the underwriter’s name in the preceding table bears to the total number of shares of common stock listed in the preceding table.

The closing of the Repurchase is conditioned upon the consummation of this offering. In addition, the closing of this offering is conditioned upon the satisfaction or waiver of various conditions, including the consummation of the Repurchase. The Repurchase is expected to occur substantially concurrently with the closing of this offering.

Certain funds associated or affiliated with an existing stockholder and director of the Company have indicated an interest in purchasing up to $10 million of shares of our common stock in this offering, at the public offering price. Because these indications of interest are not binding agreements or commitments to purchase, such entities may elect to purchase fewer shares than they indicate an interest in purchasing or not to purchase any shares in this offering. In addition, the underwriter may elect to sell fewer shares or not to sell any shares in this offering to such entities. Any shares purchased by such entities in this offering will be subject to lock-up agreements with the underwriter, as described below. The underwriter will receive the same discount from any shares sold to such entities as it will from any other shares sold to the public in this offering.

The following table shows the per share and total public offering price, underwriting discounts and commissions, and proceeds to the Company before expenses.  These amounts are shown assuming both no exercise and full exercise of the underwriter’s option to purchase up to an additional 528,000 shares of common stock.

The estimated offering expenses payable by us, exclusive of the underwriting discounts and commissions, are approximately $620,000. We have also agreed to reimburse the underwriter for expense relating to clearance of this offering with the Financial Industry Regulatory Authority up to $25,000.

Our common stock is listed on the New York Stock Exchange under the trading symbol “TDW.”

We have agreed that, without the prior written consent of Morgan Stanley & Co. LLC, we will not, and we will not publicly disclose an intention to, during the period ending 90 days after the date of this prospectus supplement (the “restricted period”):

whether any such transaction described in the two bullets above is to be settled by delivery of common stock or such other securities, in cash or otherwise; or

The restrictions described in the foregoing paragraph shall not apply to:

Our directors, officers, one of our shareholders and Banyan have agreed that, without the prior written consent of Morgan Stanley & Co. LLC, they will not, and will not publicly disclose an intention to, during the restricted period:

whether any such transaction described above is to be settled by delivery of common stock or such other securities, in cash or otherwise. In addition, they will not engage in any hedging or other transactions designed or intended, or which could reasonably be expected to lead to or result in, a sale or disposition of any shares of common stock, or securities convertible into or exercisable or exchangeable for common stock, even if any such sale or disposition transaction or transactions would be made or executed by or on behalf of someone other than the director, officer, shareholder or Banyan.

The restrictions described in the immediately preceding paragraph do not apply to:

provided that in the case of any transfer or distribution pursuant to the last two bullets above, (i) each donee or distributee shall sign and deliver a lock-up agreement and (ii) no filing under Section 16(a) of the Exchange Act, reporting a reduction in beneficial ownership of shares of common stock, shall be required or shall be voluntarily made during the restricted period;

In addition, they have agreed that, without the prior written consent of Morgan Stanley & Co. LLC, they will not, during the restricted period, make any demand for, or exercise any right with respect to, the registration of any shares of common stock or any security convertible into or exercisable or exchangeable for common stock. They also agreed and consented to the entry of stop transfer instructions with the Company’s transfer agent and registrar against the transfer of the shares of common stock except in compliance with the foregoing restrictions.

In addition, one of our directors and shareholders may engage in transfers of shares of common stock or warrants held in separately managed accounts of investment advisory clients or discretionary brokerage accounts of brokerage clients for which the shareholder has beneficial ownership (as such term is used in Rule 13d-3 of the Exchange Act), provided that any filing under Section 16(a) of the Exchange Act, reporting a reduction in beneficial ownership of common stock, made during the Restricted Period shall clearly indicate in the footnotes thereto that the filing relates to the foregoing circumstances and that the shareholder has no control over the reduction in beneficial ownership of such shares of common stock or warrants. Further, notwithstanding the above, Banyan may publicly disclose an intention to engage in the prohibited transactions and may engage in transfers or sales of warrants exercisable for our common stock in private transactions without any sale or transfer restrictions applicable under the lock-up agreement, provided that each recipient shall sign and deliver a lock-up agreement. Morgan Stanley & Co. LLC, in its sole discretion, may release the common stock and other securities subject to the lock-up agreements described above in whole or in part at any time.

In order to facilitate the offering of the common stock, the underwriter may engage in transactions that stabilize, maintain or otherwise affect the price of the common stock. Specifically, the underwriter may sell more shares than they are obligated to purchase under the underwriting agreement, creating a short position. A short sale is covered if the short position is no greater than the number of shares available for purchase by the underwriter under the option. The underwriter can close out a covered short sale by exercising the option or purchasing shares in the open market. In determining the source of shares to close out a covered short sale, the underwriter will consider, among other things, the open market price of shares compared to the price available under the option. The underwriter may also sell shares in excess of the option, creating a naked short position. The underwriter must close out any naked short position by purchasing shares in the open market. A naked short position is more likely to be created if the underwriter is concerned that there may be downward pressure on the price of the common stock in the open market after pricing that could adversely affect investors who purchase in this offering. As an additional means of facilitating this offering, the underwriter may bid for, and purchase, shares of common stock in the open market to stabilize the price of the common stock. These activities may raise or maintain the market price of the common stock above independent market levels or prevent or retard a decline in the market price of the common stock. The underwriter is not required to engage in these activities and may end any of these activities at any time.

We and the underwriter have agreed to indemnify each other against certain liabilities, including liabilities under the Securities Act.

A prospectus supplement in electronic format may be made available on websites maintained by the underwriter, or selling group members, if any, participating in this offering. The underwriter may allocate a number of shares of common stock for sale to its online brokerage account holders. Internet distributions will be made on the same basis as other allocations.

The underwriter and its affiliates are full service financial institutions engaged in various activities, which may include sales and trading, commercial and investment banking, advisory, investment management, investment research, principal investment, hedging, market making, brokerage and other financial and non-financial activities and services. The underwriter and its affiliates have engaged, and may in the future engage, in investment banking, commercial banking and other financial advisory and commercial dealings with us and our affiliates.

In addition, in the ordinary course of its various business activities, the underwriter and its affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for its own account and for the accounts of its customers and may at any time hold long and short positions in such securities and instruments. Such investment and securities activities may involve our securities and instruments. The underwriter and its affiliates may also make investment recommendations or publish or express independent research views in respect of such securities or instruments and may at any time hold, or recommend to clients that they acquire, long or short positions in such securities and instruments.

Selling Restrictions

European Economic Area

This prospectus supplement has been prepared on the basis that any offer of shares of our common stock in any Member State of the European Economic Area (each, a “Member State”), will be made pursuant to an exemption under the Prospectus Regulation from the requirement to publish a prospectus for offers of shares of our common stock. Accordingly any person making or intending to make an offer in that Member State of shares of our common stock which are the subject of the offering contemplated in this prospectus supplement in relation to the offer of those shares of our common stock may only do so in circumstances in which no obligation arises for the company or the underwriter to publish a prospectus pursuant to Article 3 of the Prospectus Regulation or supplement a prospectus pursuant to Article 23 of the Prospectus Regulation, in each case in relation to such offer.

Neither the company nor the underwriter have authorized, nor do they authorize, the making of any offer of shares of our common stock in circumstances in which an obligation arises for the company or the underwriter to publish or supplement a prospectus for such offer. Neither the company nor the underwriter have authorized, nor do they authorize, the making of any offer of shares of our common stock through any financial intermediary, other than offers made by the underwriter, which constitute the final placement of the shares of common stock contemplated in this prospectus supplement.

Each person in a Member State who receives any communication in respect of, or who acquires any shares of our common stock under, the offers to the public contemplated in this prospectus supplement, or to whom the shares of our common stock are otherwise made available, will be deemed to have represented, warranted, acknowledged and agreed to and with each underwriter and the company that it and any person on whose behalf it acquires shares of our common stock is:

(a)         a qualified investor within the meaning of Article 2(e) of the Prospectus Regulation; and

(b)         in the case of any shares of our common stock acquired by it as a financial intermediary, as that term is used in Article 5(1) of the Prospectus Regulation: (i) the shares of our common stock acquired by it in the offer have not been acquired on behalf of, nor have they been acquired with a view to their offer or resale to, persons in any Member State other than qualified investors, as that term is defined in the Prospectus Regulation, or in circumstances in which the prior consent of the underwriter has been given to the offer or resale; or (ii) where shares of our common stock have been acquired by it on behalf of persons in any Member State other than qualified investors, the offer of those shares of our common stock to it is not treated under the Prospectus Regulation as having been made to such persons.

In relation to each Member State, each underwriter has represented and agreed that it has not made and will not make an offer of shares of our common stock to the public in that Member State except that it may make an offer of shares of our common stock to the public in that Member State at any time,

(a)         to legal entities which are qualified investors as defined in the Prospectus Regulation;

(b)         to fewer than 150 natural or legal persons (other than qualified investors as defined in the Prospectus Regulation) subject to obtaining the prior consent of the underwriter for any such offer; or

(c)         in any other circumstances falling within Article 1(4) of the Prospectus Regulation, provided that no such offer of shares of our common stock shall require the company or the underwriter to publish a prospectus pursuant to Article 3 of the Prospectus Regulation or supplement a prospectus pursuant to Article 23 of the Prospectus Regulation.

For the purposes of this provision, the expression an “offer of shares of our common stock to the public” in relation to any shares of our common stock in any Member State means the communication in any form and by any means of sufficient information on the terms of the offer and the shares of common stock to be offered so as to enable an investor to decide to purchase or subscribe for the shares of our common stock.

The expression “Prospectus Regulation” means Regulation (EU) 2017/1129 (as amended or superseded).

United Kingdom

This prospectus supplement has been prepared on the basis that any offer of shares of our common stock in the United Kingdom will be made pursuant to an exemption under the UK Prospectus Regulation from the requirement to publish a prospectus for offers of shares of our common stock. Accordingly any person making or intending to make an offer in the UK of shares of our common stock which are the subject of the offering contemplated in this prospectus supplement in relation to the offer of those shares of our common stock may only do so in circumstances in which no obligation arises for the company or the underwriter to publish a prospectus pursuant to section 85 of the Financial Services and Markets Act 2000 (as amended, the “FSMA”) or supplement a prospectus pursuant to Article 23 of the UK Prospectus Regulation in each case in relation to such offer.

Neither the company nor the underwriter have authorized, nor do they authorize, the making of any offer of shares of our common stock in circumstances in which an obligation arises for the company or the underwriter to publish or supplement a prospectus for such offer. Neither the company nor the underwriter have authorized, nor do they authorize, the making of any offer of shares of our common stock through any financial intermediary, other than offers made by the underwriter, which constitute the final placement of the shares of our common stock contemplated in this prospectus supplement.

Each person in the UK who receives any communication in respect of, or who acquires any shares of our common stock under, the offers to the public contemplated in this prospectus supplement, or to whom the shares of our common stock are otherwise made available, will be deemed to have represented, warranted, acknowledged and agreed to and with each underwriter and the company that it and any person on whose behalf it acquires shares of our common stock is:

(a)         a qualified investor within the meaning of Article 2(e) of the UK Prospectus Regulation; and

(b)         in the case of any shares of our common stock acquired by it as a financial intermediary, as that term is used in Article 5(1) of the UK Prospectus Regulation, (i) the shares of our common stock acquired by it in the offer have not been acquired on behalf of, nor have they been acquired with a view to their offer or resale to, persons in the UK other than qualified investors, as that term is defined in the UK Prospectus Regulation, or in circumstances in which the prior consent of the underwriter has been given to the offer or resale; or (ii) where shares of our common stock have been acquired by it on behalf of persons in the UK other than qualified investors, the offer of those shares of our common stock to it is not treated under the UK Prospectus Regulation or FSMA as having been made to such persons.

Each underwriter has represented and agreed that it has not made and will not make an offer of shares of our common stock to the public in the United Kingdom, except that it may make an offer of shares of our common stock to the public in the United Kingdom at any time:

(a)         to any legal entity which is a qualified investor as defined in Article 2 of the UK Prospectus Regulation;

(b)         to fewer than 150 natural or legal persons (other than qualified investors as defined in Article 2 of the UK Prospectus Regulation) in the United Kingdom subject to obtaining the prior consent of the underwriter for any such offer; or

(c)         at any time in any other circumstances falling within section 86 of the FSMA, provided that no such offer of shares of our common stock shall require the company or any underwriter to publish a prospectus pursuant to section 85 of the FSMA or supplement a prospectus pursuant to Article 23 of the UK Prospectus Regulation.

For the purposes of this provision, the expression “an offer of shares of our common stock to the public” in relation to any shares of our common stock means the communication in any form and by any means of sufficient information on the terms of the offer and the shares of common stock to be offered so as to enable an investor to decide to purchase or subscribe for the shares of our common stock.

The expression UK Prospectus Regulation means Regulation (EU) 2017/1129 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018.

Each underwriter has represented, warranted and agreed as follows:

(a)         it has only communicated or caused to be communicated and will only communicate or cause to be communicated an invitation or inducement to engage in investment activity (within the meaning of section 21 of the FSMA) received by it in connection with the issue or sale of the shares of our common stock in circumstances in which section 21(1) of the FSMA does not apply to the company; and

(b)         it has complied and will comply with all applicable provisions of the FSMA with respect to anything done by it in relation to the common stock in, from or otherwise involving the United Kingdom.

(c)         This document is for distribution only to persons who (i) have professional experience in matters relating to investments falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (as amended, the “Financial Promotion Order”), (ii) are persons falling within Article 49(2)(a) to (d) (“high net worth companies, unincorporated associations etc.”) of the Financial Promotion Order, (iii) are outside the United Kingdom, or (iv) are persons to whom an invitation or inducement to engage in investment activity (within the meaning of section 21 of the FSMA) in connection with the issue or sale of any shares of our common stock may otherwise lawfully be communicated or caused to be communicated (all such persons together being referred to as “relevant persons”). This document is directed only at relevant persons and must not be acted on or relied on by persons who are not relevant persons. Any investment or investment activity to which this document relates is available only to relevant persons and will be engaged in only with relevant persons.

Japan

No registration pursuant to Article 4, paragraph 1 of the Financial Instruments and Exchange Law of Japan (Law No. 25 of 1948, as amended) (the “FIEL”) has been made or will be made with respect to the solicitation of the application for the acquisition of the shares of common stock.

Accordingly, the shares of common stock have not been, directly or indirectly, offered or sold and will not be, directly or indirectly, offered or sold in Japan or to, or for the benefit of, any resident of Japan (which term as used herein means any person resident in Japan, including any corporation or other entity organized under the laws of Japan) or to others for re-offering or re-sale, directly or indirectly, in Japan or to, or for the benefit of, any resident of Japan except pursuant to an exemption from the registration requirements, and otherwise in compliance with, the FIEL and the other applicable laws and regulations of Japan.

For Qualified Institutional Investors (“QII”)

Please note that the solicitation for newly-issued or secondary securities (each as described in Paragraph 2, Article 4 of the FIEL) in relation to the shares of common stock constitutes either a “QII only private placement” or a “QII only secondary distribution” (each as described in Paragraph 1, Article 23-13 of the FIEL). Disclosure regarding any such solicitation, as is otherwise prescribed in Paragraph 1, Article 4 of the FIEL, has not been made in relation to the shares of common stock. The shares of common stock may only be transferred to QIIs.

For Non-QII Investors

Please note that the solicitation for newly-issued or secondary securities (each as described in Paragraph 2, Article 4 of the FIEL) in relation to the shares of common stock constitutes either a “small number private placement” or a “small number private secondary distribution” (each as is described in Paragraph 4, Article 23-13 of the FIEL). Disclosure regarding any such solicitation, as is otherwise prescribed in Paragraph 1, Article 4 of the FIEL, has not been made in relation to the shares of common stock. The shares of common stock may only be transferred en bloc without subdivision to a single investor.

Switzerland

The shares of our common stock may not be publicly offered in Switzerland and will not be listed on the SIX Swiss Exchange (“SIX”), or on any other stock exchange or regulated trading facility in Switzerland. This document has been prepared without regard to the disclosure standards for issuance prospectuses under art. 652a or art. 1156 of the Swiss Code of Obligations or the disclosure standards for listing prospectuses under art. 27 ff. of the SIX Listing Rules or the listing rules of any other stock exchange or regulated trading facility in Switzerland. Neither this prospectus supplement nor any other offering or marketing material relating to the shares or the offering may be publicly distributed or otherwise made publicly available in Switzerland.

Neither this prospectus supplement nor any other offering or marketing material relating to the offering, the Company or the shares have been or will be filed with or approved by any Swiss regulatory authority. In particular, this document will not be filed with, and the offer of shares will not be supervised by, the Swiss Financial Market Supervisory Authority FINMA, or FINMA, and the offer of shares has not been and will not be authorized under the Swiss Federal Act on Collective Investment Schemes, or CISA. The investor protection afforded to acquirers of interests in collective investment schemes under the CISA does not extend to acquirers of shares.

Canada

The shares of our common stock may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the shares must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws.

Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus supplement (including any amendment thereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 of National Instrument 33-105 Underwriting Conflicts (“NI 33-105”), the underwriter is not required to comply with the disclosure requirements of NI 33-105 regarding underwriter conflicts of interest in connection with this offering.

Hong Kong

The shares of our common stock have not been offered or sold and will not be offered or sold in Hong Kong, by means of any document, other than (a) to “professional investors” as defined in the Securities and Futures Ordinance (Cap. 571) of Hong Kong and any rules made under that Ordinance; or (b) in other circumstances which do not result in the document being a “prospectus” as defined in the Companies (Winding Up and Miscellaneous Provisions) Ordinance (Cap. 32) of Hong Kong or which do not constitute an offer to the public within the meaning of that Ordinance. No advertisement, invitation or document relating to the shares has been or may be issued or has been or may be in the possession of any person for the purposes of issue, whether in Hong Kong or elsewhere, which is directed at, or the contents of which are likely to be accessed or read by, the public of Hong Kong (except if permitted to do so under the securities laws of Hong Kong) other than with respect to shares which are or are intended to be disposed of only to persons outside Hong Kong or only to “professional investors” as defined in the Securities and Futures Ordinance and any rules made under that Ordinance.

Singapore

Singapore SFA Product Classification-In connection with Section 309B of the SFA and the CMP Regulations 2018, unless otherwise specified before an offer of shares, we have determined, and hereby notify all relevant persons (as defined in Section 309A(1) of the SFA), that the shares are “prescribed capital markets products” (as defined in the CMP Regulations 2018) and Excluded Investment Products (as defined in MAS Notice SFA 04-N12: Notice on the Sale of Investment Products and MAS Notice FAA-N16: Notice on Recommendations on Investment Products).

The underwriter has acknowledged that this prospectus supplement has not been registered as a prospectus with the Monetary Authority of Singapore. Accordingly, the underwriter has represented and agreed that it has not offered or sold any shares or caused the shares to be made the subject of an invitation for subscription or purchase and will not offer or sell any shares or cause the shares to be made the subject of an invitation for subscription or purchase, and has not circulated or distributed, nor will it circulate or distribute, this prospectus supplement or any other document or material in connection with the offer or sale, or invitation for subscription or purchase, of the shares, whether directly or indirectly, to any person in Singapore other than:

Where the shares are subscribed or purchased under Section 275 of the SFA by a relevant person which is:

Dubai International Financial Centre, or DIFC

This prospectus supplement relates to an Exempt Offer in accordance with the Markets Rules 2012 of the Dubai Financial Services Authority (“DFSA”). This prospectus supplement is intended for distribution only to persons of a type specified in the Markets Rules 2012 of the DFSA. It must not be delivered to, or relied on by, any other person. The DFSA has no responsibility for reviewing or verifying any documents in connection with Exempt Offers. The DFSA has not approved this prospectus supplement nor taken steps to verify the information set forth herein and has no responsibility for this document. The securities to which this prospectus supplement relates may be illiquid and/or subject to restrictions on their resale. Prospective purchasers of the securities offered should conduct their own due diligence on the securities. If you do not understand the contents of this prospectus supplement you should consult an authorized financial advisor.

In relation to its use in the DIFC, this prospectus supplement is strictly private and confidential and is being distributed to a limited number of investors and must not be provided to any person other than the original recipient, and may not be reproduced or used for any other purpose. The interests in the securities may not be offered or sold directly or indirectly to the public in the DIFC.

Australia

This prospectus supplement:

The shares of our common stock may not be directly or indirectly offered for subscription or purchased or sold, and no invitations to subscribe for or buy the shares may be issued, and no draft or definitive offering memorandum, advertisement or other offering material relating to any shares may be distributed in Australia, except where disclosure to investors is not required under Chapter 6D of the Corporations Act or is otherwise in compliance with all applicable Australian laws and regulations. By submitting an application for the shares, you represent and warrant to us that you are an Exempt Investor.

As any offer of shares under this prospectus supplement will be made without disclosure in Australia under Chapter 6D.2 of the Corporations Act, the offer of those securities for resale in Australia within 12 months may, under section 707 of the Corporations Act, require disclosure to investors under Chapter 6D.2 if none of the exemptions in section 708 applies to that resale. By applying for the shares you undertake to us that you will not, for a period of 12 months from the date of issue of the shares, offer, transfer, assign or otherwise alienate those shares to investors in Australia except in circumstances where disclosure to investors is not required under Chapter 6D.2 of the Corporations Act or where a compliant disclosure document is prepared and lodged with ASIC.

LEGAL MATTERS

The validity of the common stock offered hereby will be passed upon for us by Norton Rose Fulbright US LLP, our outside legal counsel. Shearman & Sterling LLP, New York, New York is acting as counsel for the underwriter in connection with this offering.

EXPERTS

The financial statements of Tidewater Inc. as of December 31, 2021 and for the year then ended and management’s assessment of the effectiveness of internal control over financial reporting (which is included in Management’s Report on Internal Control over Financial Reporting) as of December 31, 2021 incorporated in this prospectus supplement by reference to the Annual Report on Form 10-K for the year ended December 31, 2021 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting. 

The audited historical financial statements of Swire Pacific Offshore Holdings Limited and its subsidiaries included in Exhibit 99.1 of Tidewater Inc.’s Current Report on Form 8-K/A dated July 6, 2022 have been so incorporated in reliance on the report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

The financial statements of Tidewater Inc. as of December 31, 2020, and for each of the two years in the period ended December 31, 2020, incorporated by reference in this Prospectus, have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report. Such financial statements are incorporated by reference in reliance upon the report of such firm given their authority as experts in accounting and auditing.

ADDITIONAL INFORMATION AND INFORMATION INCORPORATED BY REFERENCE

Tidewater files annual, quarterly and current reports, proxy statements and other business and financial information with the SEC. Tidewater files reports and other business and financial information with the SEC electronically, and the SEC maintains a website located at http://www.sec.gov containing this information. You will also be able to obtain many of these documents, free of charge, from Tidewater at http://www.tdw.com/ under the “Investor Relations” link and then under the subheading “SEC Filings.” Information contained on, or that can be accessed through, our website is not incorporated by reference into this prospectus supplement or the accompanying prospectus and you should not consider any such information to be a part of this prospectus supplement or the accompanying prospectus. We have included our website address as an inactive textual reference only.

Tidewater has filed a registration statement on Form S-3 under the Securities Act with the SEC to register with the SEC the offering of securities described in this prospectus supplement. This prospectus supplement, which constitutes a part of the registration statement, does not contain all of the information set forth in the registration statement or the exhibits and schedules filed with it. For further information about Tidewater and its securities, reference is made to the registration statement and the exhibits and schedules filed with it. Statements contained in this prospectus supplement regarding the contents of any contract or any other document that is filed as an exhibit to the registration statement are not necessarily complete, and each such statement is qualified in all respects by reference to the full text of such contract or other document filed as an exhibit to the registration statement. These documents contain important information about the company and its financial condition.

The SEC allows Tidewater to incorporate certain information into this prospectus supplement by reference to other information that has been filed with the SEC, which means that we can disclose important information to you by referring you to those documents that are considered part of this prospectus supplement. All documents that Tidewater files (but not those that Tidewater furnishes) pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act on or after the date of this prospectus supplement and prior to the termination of the offering of any of the securities covered under this prospectus supplement shall be deemed to be incorporated by reference into this prospectus supplement and will automatically update and supersede the information in this prospectus supplement and any previously filed documents.

Any statement contained herein or in a document incorporated or deemed to be incorporated by reference in this prospectus supplement shall be deemed to be modified or superseded for purposes of this prospectus supplement to the extent that a statement contained in this prospectus supplement, or in any other subsequently filed document which also is or is deemed to be incorporated by reference in this prospectus supplement, modifies or supersedes such earlier statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus supplement. The documents that are incorporated by reference contain important information about Tidewater, and you should read this prospectus supplement together with any other documents incorporated by reference in this prospectus supplement.

This prospectus supplement incorporates by reference the following documents that have previously been filed with the SEC by Tidewater:

You may request copies of this prospectus supplement, the accompanying prospectus and any of the documents incorporated by reference herein or certain other information concerning Tidewater, without charge, upon written or oral request to the Company’s principal executive office. The address and telephone number of such principal executive office are listed below.

Tidewater Inc.

842 West Sam Houston Parkway North, Suite 400,

Houston, Texas 77024

Attention: Investor Relations

Telephone: (713) 470-5300

Email: jstanley@tdw.com

Tidewater has not authorized anyone to provide any information or make any representation about the offering or the Company that is different from, or in addition to, that contained in this prospectus supplement or in any of the materials that have been incorporated into this prospectus supplement. Therefore, if anyone does give you information of this sort, you should not rely on it. If you are in a jurisdiction where offers to sell, or solicitations of offers to purchase, the securities offered by this prospectus supplement, or if you are a person to whom it is unlawful to direct these types of activities, then the offer presented in this prospectus supplement does not extend to you. The information contained in this prospectus supplement speaks only as of the date of this document unless the information specifically indicates that another date applies.

Prospectus

Tidewater Inc.

Common Stock
Debt Securities
Depositary Shares
Preferred Stock
Units
Warrants

We may offer and sell up to $300.0 million of the securities listed above from time to time in one or more classes or series and in amounts, at prices and on terms that we will determine at the time of the offering. Any debt securities we issue under this prospectus may be guaranteed by one or more of our existing and future subsidiaries.

This prospectus provides you with a general description of the securities we may offer. Each time we sell securities, we will provide a supplement to this prospectus that contains specific information about the offering. The prospectus supplement may also add, update or change information contained in this prospectus. You should carefully read this prospectus, all prospectus supplements and all other documents incorporated by reference in this prospectus before you invest in our securities.

We may offer and sell these securities to or through underwriters, dealers or agents or directly to one or more purchasers. The prospectus supplement for each offering of securities will describe in detail the plan of distribution. The names of any underwriters, dealers or agents involved in the offer and sale of any securities and the specific manner in which they may be offered will be set forth in the prospectus supplement covering the offer and sale of those securities.

THIS PROSPECTUS MAY NOT BE USED TO SELL SECURITIES UNLESS ACCOMPANIED BY A PROSPECTUS SUPPLEMENT.

Our common stock is listed on the New York Stock Exchange (the “NYSE”) under the symbol “TDW.” Our Series A Warrants are listed on the NYSE under the symbol “TDW.WS.A.” Our Series B Warrants are listed on the NYSE under the symbol “TDW.WS.B.” Our Warrants are listed on the NYSE American under the symbol “TDW.WS.”

You should carefully read this prospectus, the documents incorporated by reference in this prospectus and any prospectus supplement before making an investment decision. Investing in our securities involves risks. See “Risk Factors” on page 3 of this prospectus, the risk factors in the documents incorporated by reference herein and the risk factors contained in any applicable prospectus supplement before making an investment decision to purchase our securities.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities, or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is July 20, 2021.

TABLE OF CONTENTS

IMPORTANT NOTICE ABOUT INFORMATION IN THIS PROSPECTUS

We have not authorized anyone to provide any information other than that contained or incorporated by reference in this prospectus, in any prospectus supplement we prepare or authorize and in any related free writing prospectus or other information to which we have referred you. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. If you are in a jurisdiction where offers to sell, or solicitations of offers to purchase, the securities offered by this document are unlawful, or if you are a person to whom it is unlawful to direct these types of activities, then the offer presented in this document does not extend to you. You should assume that the information contained and incorporated by reference in this prospectus, any accompanying prospectus supplement and in any related free writing prospectus filed by us with the Securities Exchange Commission (the “SEC”) is only accurate as of the respective dates of such documents. Our business, financial condition, results of operations and prospects may have changed since the date of such documents.

You should also read and consider the information in the documents to which we have referred you under the captions “Additional Information and Information Incorporated by Reference” in this prospectus.

ABOUT THIS PROSPECTUS

This prospectus is part of a “shelf” registration statement that we filed with the SEC. Under this registration statement, we may sell up to $300.0 million of any combination of the securities described in this prospectus from time to time in one or more offerings. This prospectus provides you with a general description of the securities we may offer. This prospectus does not contain all the information set forth in the registration statement as permitted by the rules of the SEC. Each time we offer or sell securities, we will provide a prospectus supplement to this prospectus that will contain specific information about the terms of that offering. That prospectus supplement may also add, update or change information contained in this prospectus. Before purchasing any securities, you should carefully read both this prospectus and any applicable prospectus supplement, together with the additional information described in this prospectus under the heading “Additional Information and Information Incorporated by Reference.”

This prospectus contains summaries of certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed, will be filed or will be incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described below under the heading “Additional Information and Information Incorporated by Reference.” We have filed or incorporated by reference exhibits to the registration statement of which this prospectus forms a part. You should read the exhibits carefully for provisions that may be important to you.

When used in this prospectus or in any supplement to this prospectus, the terms “Tidewater,” the “Company,” “we,” “our” and “us” refer to Tidewater Inc. and its subsidiaries, unless otherwise indicated or the context otherwise requires.

TIDEWATER INC.

Tidewater Inc., a Delaware corporation, provides offshore marine support and transportation services to the global offshore energy industry through the operation of a diversified fleet of marine service vessels. Tidewater was incorporated in 1956 and conducts its operations through wholly-owned United States and international subsidiaries, as well as through joint ventures in which Tidewater has either majority or, occasionally, non-controlling interests (generally where required to satisfy local ownership or local content requirements). Headquartered in Houston, Texas, Tidewater’s U.S. marine operations are based in Amelia, Louisiana and Houston, Texas, and Tidewater conducts international operations through facilities and offices located in over 30 countries.

Tidewater’s vessels and associated vessel services provide support for all phases of offshore oil and natural gas exploration, field development and production. These services include towing of, and anchor handling for, mobile offshore drilling units; transporting supplies and personnel necessary to sustain drilling, workover and production activities; offshore construction and seismic and subsea support; and a variety of specialized services such as pipe and cable laying. In addition, Tidewater has one of the broadest geographic operating footprints in the offshore vessel industry. Tidewater’s global operating footprint allows it to react quickly to changing local market conditions and to be responsive to the changing requirements of the many customers with which it believes it has strong relationships. Tidewater is also one of the most experienced international operators in the offshore energy industry with over 60 years of international experience. At March 31, 2021, Tidewater owned 146 active vessels (excluding 20 vessels classified as held for sale) available to serve the global energy industry.

Tidewater’s executive offices are located at 6002 Rogerdale Road, Suite 600, Houston, Texas 77072, and its telephone number is (713) 470-5300. Tidewater’s website is www.tdw.com. Information on Tidewater’s website is not part of this prospectus.

Shares of Tidewater’s common stock, $0.001 par value per share, are listed on the New York Stock Exchange (the “NYSE”) under the symbol “TDW.” Tidewater’s Series A Warrants are listed on the NYSE under the symbol “TDW.WS.A.” Tidewater’s Series B Warrants are listed on the NYSE under the symbol “TDW.WS.B.” Tidewater’s Warrants are listed on the NYSE American under the symbol “TDW.WS.”

RISK FACTORS

Our business, financial condition and operating results can be affected by a number of factors, whether currently known or unknown, including but not limited to those described in this registration statement, any applicable prospectus supplement or in our filings with the SEC, any one or more of which could, directly or indirectly, cause our actual financial condition and operating results to vary materially from those anticipated, projected or assumed in the forward-looking statements. Any of these factors, in whole or in part, could materially and adversely affect our business, prospects, financial condition, results of operations, stock price and cash flows. These could also be affected by additional factors that apply to all companies generally which are not specifically mentioned below. The price of our securities could decline and you could lose part or all of your investment.

Investing in our securities involves certain risks. Before you invest in our securities you should carefully consider those risk factors described under, but not limited to, the heading “Risk Factors” in our most recent Annual Report on Form 10-K, any subsequently filed Quarterly Reports on Form 10-Q and any subsequently filed Current Reports on Form 8-K (other than, in each case, information furnished rather than filed), which are incorporated by reference herein, and those risk factors that may be included in any applicable prospectus supplement, together with all of the other information included in this prospectus, any prospectus supplement and the documents we incorporate by reference, in evaluating an investment in our securities. The risks and uncertainties described in this prospectus, any prospectus supplement, or incorporated by reference into this prospectus are not the only risks and uncertainties we face. The risks described also include forward-looking statements and our actual results may differ substantially from those discussed in these forward-looking statements. Please read “Cautionary Statement Regarding Forward-Looking Statements.” For access to documents that are incorporated by reference into this prospectus, please see the section entitled, “Additional Information and Information Incorporated by Reference” beginning on page 30.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This registration statement, of which this prospectus forms a part, and the documents to which Tidewater refers you in this registration statement, include certain “forward-looking statements” within the meaning of, and subject to the safe harbor created by, Section 27A of the Securities Act of 1933, as amended (the “Securities Act”) and Section 21E of the Exchange Act (the “safe harbor provisions”). Forward-looking statements are all statements other than statements of historical fact. All such forward-looking statements are subject to risks and uncertainties, many of which are beyond the control of the Company, and our future results of operations could differ materially from our historical results or current expectations reflected by such forward-looking statements. Some of these risks and uncertainties are discussed in Tidewater’s most recent Annual Report on Form 10-K, which is incorporated by reference into this registration statement, including in Item 1A. “Risk Factors” and include, without limitation, the risks related to fluctuations in worldwide energy demand and oil and natural gas prices, and continuing depressed levels of oil and natural gas prices without a clear indication of if, or when, prices will recover to a level to support renewed offshore exploration activities; fleet additions by competitors and industry overcapacity; our limited capital resources available to replenish our asset base as needed, including through acquisitions or vessel construction, and to fund our capital expenditure needs; uncertainty of global financial market conditions and potential constraints in accessing capital or credit if and when needed with favorable terms, if at all; changes in decisions and capital spending by customers in the energy industry and the industry expectations for offshore exploration, field development and production; consolidation of our customer base; loss of a major customer; changing customer demands for vessel specifications, which may make some of our older vessels technologically obsolete for certain customer projects or in certain markets; rapid technological changes; delays and other problems associated with vessel maintenance; the continued availability of qualified personnel and our ability to attract and retain them; the operating risks normally incident to our lines of business, including the potential impact of liquidated counterparties; our ability to comply with covenants in our indentures and other debt instruments; acts of terrorism and piracy; the impact of regional or global public health crises or pandemics; the impact of potential information technology, cybersecurity or data security breaches; integration of acquired businesses and entry into new lines of business; disagreements with our joint venture partners; natural disasters or significant weather conditions; unsettled political conditions, war, civil unrest and governmental actions, such as expropriation or enforcement of customs or other laws that are not well developed or consistently enforced; the risks associated with our international operations, including local content, local currency or similar requirements especially in higher political risk countries where we operate; interest rate and foreign currency fluctuations; labor changes proposed by international conventions; increased regulatory burdens and oversight; changes in laws governing the taxation of foreign source income; retention of skilled workers; enforcement of laws related to the environment, labor and foreign corrupt practices; the potential liability for remedial actions or assessments under existing or future environmental regulations or litigation; the effects of asserted and unasserted claims and the extent of available insurance coverage; and the resolution of pending legal proceedings.

Forward-looking statements, which can generally be identified by the use of such terminology as “may,” “can,” “potential,” “expect,” “project,” “target,” “anticipate,” “estimate,” “forecast,” “believe,” “think,” “could,” “continue,” “intend,” “seek,” “plan,” and similar expressions contained in this registration statement and in Tidewater’s most recent Annual Report on Form 10-K, as updated by its subsequent filings with the SEC, are not guarantees or assurances of future performance or events. Any forward-looking statements are based on Tidewater’s assessment of current industry, financial and economic information, which by its nature is dynamic and subject to rapid and possibly abrupt changes, which Tidewater may or may not be able to control. Further, Tidewater may make changes to its business plans that could or will affect its results. While management believes that these forward-looking statements are reasonable when made, there can be no assurance that future developments that affect Tidewater will be those that we anticipate and have identified. The forward-looking statements should be considered in the context of the risk factors listed above and discussed in greater detail in Tidewater’s most recent Annual Report on Form 10-K, as updated by its subsequent filings with the SEC. Management disclaims any obligation to update or revise any forward-looking statements contained herein to reflect new information, future events or developments. All of the forward-looking statements made by Tidewater in this prospectus are qualified by the information contained herein, including the information contained under this heading.

Tidewater undertakes no obligation to publicly release the result of any revisions to any such forward-looking statements that may be made to reflect events or circumstances that occur, or of which it becomes aware. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof.

USE OF PROCEEDS

Unless we otherwise specify in the applicable prospectus supplement, we expect to use the net proceeds from the sale of the securities covered by this prospectus for general corporate purposes, which may include repayment or refinancing of indebtedness, working capital, capital expenditures, investments, acquisitions and other business opportunities. Any specific allocation of the net proceeds of an offering of securities to a specific purpose will be determined at the time of the offering and will be described in an accompanying prospectus supplement. Until we use the net proceeds from the sale of the securities for these purposes, we may place the net proceeds in temporary investments.

DESCRIPTION OF TIDEWATER COMMON STOCK AND WARRANTS

The following summary of the material terms of Tidewater capital stock and warrants and the material provisions of the Tidewater charter, the Tidewater bylaws, the warrant agreements and the Rights Plan (as defined below) does not purport to be complete and is qualified by reference to the full text of the Tidewater charter, the Tidewater bylaws, the applicable warrant agreements and the Rights Plan, each of which is attached as an Exhibit to, and incorporated by reference into, this registration statement.

General

The authorized capital stock of Tidewater consists of 125,000,000 shares of common stock, par value $0.001 per share, of which 41,000,575 shares were outstanding as of June 30, 2021 and 3,000,000 shares of preferred stock, no par value per share, none of which were outstanding as of June 30, 2021. As of July 8, 2021, the outstanding shares of common stock were held by 631 stockholders of record. All outstanding shares of Tidewater common stock are fully paid and nonassessable. The unissued portion of Tidewater’s authorized common stock are available for issuance as the board of directors of Tidewater (the “Tidewater Board”) determines advisable.

Tidewater has also established long-term incentive compensation plans as incentives for certain eligible employees and currently sponsors one such plan – the Tidewater Inc. Amended and Restated 2021 Stock Incentive Plan (the “2021 Plan”). The only types of long-term incentive awards that Tidewater has outstanding are restricted stock units and stock options. As of June 30, 2021, there were 1,019,879 restricted stock units outstanding and 603,756 stock options outstanding (including the incentive awards issued under Tidewater’s prior plans). Subject to the terms and conditions of the 2021 Plan and NYSE listing rules, Tidewater may issue up to 2,500,000 additional shares of common stock under the 2021 Plan.

Common Stock

Voting Rights. Tidewater has only one outstanding class of stock and all voting rights are vested in the holders of Tidewater common stock. On all matters subject to a vote of stockholders, including the election of directors, the stockholders of Tidewater will be entitled to one vote for each share of common stock owned. Stockholders of Tidewater do not have cumulative voting rights with respect to the election of directors.

Dividend Rights. Subject to the rights granted to any holders of Tidewater preferred stock, holders of Tidewater common stock are entitled to receive dividends, if any, in the amounts and at the times declared by the Tidewater Board in its discretion out of any assets or funds of Tidewater legally available for the payment of dividends.

Liquidation Rights. Upon the dissolution, liquidation or winding up of Tidewater’s business, subject to the rights, if any, of the holders of any outstanding series of preferred stock, holders of Tidewater common stock are entitled to receive the assets of Tidewater available for distribution to its stockholders ratably in proportion to the number of shares of common stock held by them.

Assessment and Redemption. Shares of Tidewater common stock presently outstanding are validly issued, fully paid and nonassessable. There is no provision for any voluntary redemption of Tidewater common stock.

Preemptive Rights. Holders of Tidewater common stock do not have any preemptive right to subscribe to an additional issue of its common stock or to any security convertible into such stock.

Limitations on Ownership by Non-U.S. Citizens. Tidewater owns and operates U.S.-flag vessels in U.S. coastwise trade; accordingly, it is subject to the Jones Act, which, subject to limited exceptions, restricts maritime transportation between points in the United States (known as marine cabotage services or coastwise trade) to vessels built in the United States, registered under the U.S. flag, manned by predominantly U.S. crews, and owned and operated by U.S. citizens within the meaning of the Jones Act. Under the Jones Act, at least 75% of the outstanding shares of each class or series of the capital stock of Tidewater must be owned and controlled by U.S. citizens. In order to ensure compliance with the Jones Act coastwise citizenship requirement that at least 75% of Tidewater’s outstanding common stock is owned by U.S. citizens, the Tidewater certificate of incorporation restricts ownership of the shares of its outstanding common stock by non-U.S. citizens in the aggregate to not more than 24%. The Tidewater certificate of incorporation further prohibits the acquisition of shares by a non-U.S. citizen where (i) such acquisition would cause the aggregate number of shares held by all non-U.S. citizens to exceed 24% of Tidewater’s issued and outstanding common stock and (ii) such acquisition would cause the aggregate number of shares held by any individual non-U.S. citizen to exceed 4.9% of Tidewater’s issued and outstanding common stock. The Tidewater certificate of incorporation further provides the Tidewater Board with authority to redeem any share of common stock that is owned by a non-U.S. citizen that would result in ownership by non-U.S. citizens in the aggregate in excess of 24% of Tidewater’s issued and outstanding common stock. The Tidewater certificate of incorporation further provides that Tidewater may require beneficial owners of its common stock to confirm their citizenship from time to time through written statement or affidavit and could, at the discretion of the Tidewater Board, suspend the voting rights of such beneficial owner, pay into an escrow account dividends or other distributions (upon liquidation or otherwise) with respect to such shares held by such beneficial owner and restrict, prohibit or void the transfer of such shares and refuse to register such shares of Tidewater common stock held by such beneficial owner until confirmation of its citizenship status is received.

Transfer Agent. The transfer agent for Tidewater common stock is Computershare Inc.

Warrants

As of the date hereof, Tidewater has five series of outstanding warrants, three series of which were issued during Tidewater’s 2017 restructuring: (1) Series A warrants, (2) Series B warrants (together with the Series A warrants, the “equity warrants” or the “TDW Equity Warrants”) and (3) warrants issued to certain holders of Tidewater’s unsecured notes, certain lenders under Tidewater’s credit agreement pre-restructuring, and the lessor parties to certain sale leaseback agreements (the “creditor warrants” or the “TDW Jones Act Warrants”) who did not establish their status as U.S. citizens during the restructuring. Two additional series of warrants were assumed as a result of the business combination with GulfMark: (1) GulfMark equity warrants (the “GLF Equity Warrants”) and (2) GulfMark Jones Act Warrants (the “GLF Jones Act Warrants”).

The TDW Equity Warrants have six-year terms and are exercisable through July 31, 2023. Each TDW Equity Warrant represents the right to purchase one share of Tidewater common stock, par value $0.001 per share, at the applicable exercise price, subject to certain adjustments as provided in the equity warrant agreement pursuant to which the equity warrants were issued. All unexercised equity warrants will expire, and the rights of the holders of TDW Equity Warrants to purchase shares of Tidewater common stock will terminate on the first to occur of (i) the close of business on July 31, 2023, or (ii) upon their earlier exercise or settlement in accordance with the terms of the equity warrant agreement.

The TDW Jones Act Warrants have 25-year terms and are exercisable through July 31, 2042. Each TDW Jones Act Warrant represents the right to purchase one share of Tidewater common stock, par value $0.001, upon payment of an exercise price equal to the par value of Tidewater common stock. All unexercised TDW Jones Act Warrants will expire, and the rights of the holders of TDW Jones Act Warrants to purchase shares of Tidewater common stock will terminate on the first to occur of (i) the close of business on July 31, 2042 or (ii) upon settlement of all TDW Jones Act Warrants validly exercised or converted prior to July 31, 2042 and, if exercised or converted under the terms of the creditor warrant agreement pursuant to which the TDW Jones Act Warrants were issued, by purchasing one share of Tidewater common stock at the exercise price, for which the exercise price was timely paid.

As of June 30, 2021, there were 2,432,432 Series A warrants outstanding, with an exercise price of $57.06 per share, 2,629,657 Series B warrants outstanding, with an exercise price of $62.28 per share, and 639,354 creditor warrants outstanding, with an exercise price of $0.001 per share.

The GLF Equity Warrants have seven-year terms and are exercisable through November 14, 2024. Each GLF Equity Warrant represents the right to purchase 1.100 shares of Tidewater common stock, par value $0.001 per share, for an exercise price of $100.00 per share, subject to certain adjustments as provided in, and all other terms and conditions of, the GLF Equity Warrant Agreement under which such warrants were issued (as assumed and amended by Tidewater), including the limitations on foreign ownership as set forth in the Tidewater charter that are intended to comply with the Jones Act. All unexercised GLF Equity Warrants will expire, and the rights of the holders of GLF Equity Warrants to purchase shares of Tidewater common stock will terminate on the first to occur of (i) the close of business on November 14, 2024 or (ii) upon their earlier exercise or settlement in accordance with the terms of the GLF Equity Warrant Agreement.

The GLF Jones Act Warrants have 25-year terms and are exercisable through November 14, 2042. Each GLF Jones Act Warrant represents the right to purchase 1.100 shares of Tidewater common stock, par value $0.001 per share, for an exercise price of $0.01 per share, subject to certain adjustments as provided in, and all other terms and conditions of, the GLF Jones Act Warrant Agreement under which such warrants were issued (as assumed and amended by Tidewater), including the limitations on foreign ownership as set forth in the Tidewater charter that are intended to comply with the Jones Act. All unexercised GLF Jones Act Warrants will expire, and the rights of the holders of GLF Jones Act Warrants to purchase shares of Tidewater common stock will terminate on the first to occur of (i) the close of business on November 14, 2042 or (ii) upon their earlier exercise or conversion in accordance with the terms of the GLF Jones Act Warrant Agreement.

As of June 30, 2021, there were 861,310 GLF Equity Warrants outstanding, with an exercise price of $100.0 per share, and 669,601 GLF Jones Act Warrants outstanding, with an exercise price of $0.01 per share.

Certain Provisions of the Tidewater Certificate of Incorporation and Bylaws

Indemnification and Limitations on Liability of Directors and Officers

As permitted by the Delaware General Corporation Law (the “DGCL”), the Tidewater certificate of incorporation contains provisions that eliminate the personal liability of Tidewater’s directors and officers to Tidewater and Tidewater’s stockholders to the fullest extent permitted by the DGCL. However, these provisions do not limit or eliminate the rights of Tidewater or any stockholder to seek an injunction or any other non-monetary relief in the event of a breach of a director or officer’s fiduciary duty and do not limit or eliminate the liability of directors under the federal securities laws.

In addition, the Tidewater certificate of incorporation provides that Tidewater will indemnify and advance expenses to, and hold harmless, each of Tidewater’s directors and officers, to the fullest extent permitted by applicable law, who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that he or she, or a person for whom he or she is the legal representative, is or was a director or officer of Tidewater or, while holding such office or serving in such position, is or was serving at the request of Tidewater as a director, officer or agent of another entity or enterprise, including service with respect to employee benefit plans, against all liability and loss suffered and expenses (including attorney’s fees), judgments, fines and amounts paid in settlement (except for judgments, fines and amounts paid in settlement in any action or suit by or in the right of Tidewater to procure a judgment in its favor) actually and reasonably incurred by such person. The Tidewater certificate of incorporation further provides that it shall only be required to indemnify a person potentially eligible for indemnification (as specified above) in connection with a proceeding commenced by such person if the commencement of such proceeding (or part thereof) by the person was authorized by the Tidewater Board.

The DGCL permits Tidewater to purchase and maintain insurance on behalf of any person who is a director or officer for acts committed in their capacities as such directors or officers. Tidewater currently maintains such liability insurance.

Anti-Takeover Provisions

Certain provisions of the DGCL and the Tidewater certificate of incorporation and bylaws may have an anti-takeover effect and may delay, defer or prevent a merger, acquisition, tender offer, takeover attempt or other change of control transaction or other attempts to influence or replace Tidewater’s incumbent directors and officers. These provisions are summarized below.

Section 203 of the DGCL. Section 203 of the DGCL generally prohibits any “business combination,” including mergers, sales and leases of assets, issuances of securities and similar transactions, by a corporation or a subsidiary with an “interested stockholder” who beneficially owns 15% or more of a corporation’s voting stock, within three years after the person or entity becomes an interested stockholder, unless: (i) the transaction that will cause the person or entity to become an interested stockholder is approved by the board of directors of the corporation prior to the transaction; (ii) after the completion of the transaction in which the person or entity becomes an interested stockholder, the interested stockholder holds at least 85% of the voting stock of the corporation not including shares held by officers and directors of interested stockholders or shares held by specified employee benefit plans; or (iii) after the person or entity becomes an interested stockholder, the business combination is approved by the corporation’s board of directors and holders of at least two-thirds of the corporation’s outstanding voting stock, excluding shares held by the interested stockholder. The Tidewater certificate of incorporation incorporates Section 203 (except for Section 203(b)(4)) and provides that such provisions will govern even if Tidewater does not have a class of voting stock that is (i) listed on a national securities exchange, (ii) authorized for quotation on an interdealer quotation system of a registered national securities association or (iii) held of record by more than 2,000 stockholders.

Authorized but Unissued Shares of Common Stock. The Tidewater certificate of incorporation authorizes the Tidewater Board to issue authorized but unissued shares of common stock.

Undesignated Preferred Stock. The Tidewater certificate of incorporation provides the Tidewater Board with the authority to determine and fix the powers, preferences, rights, qualifications, limitations and restrictions of shares of preferred stock issued by the Tidewater Board.

No Cumulative Voting. Holders of Tidewater common stock do not have cumulative voting rights in the election of directors.

Requirements for Advance Notification of Stockholder Nominations and Proposals. The Tidewater bylaws provide advance notice procedures for stockholders to nominate candidates for election as directors at Tidewater’s annual and special meetings of stockholders and for stockholders seeking to bring business before its annual meeting of stockholders. The Tidewater bylaws also specify certain requirements regarding the form and content of a stockholder’s notice.

Special Meetings of Stockholders. The Tidewater bylaws allow only the Tidewater Board to call special meetings of stockholders. Tidewater stockholders are not able to call special meetings of stockholders.

Stockholder Action by Written Consent. The Tidewater certificate of incorporation provides that any action required or permitted to be taken at a stockholders’ meeting may be taken only upon the vote of the stockholders at such meeting and may not be taken by written consent of the stockholders.

Amendments of Certain Provisions of the Tidewater Certificate of Incorporation. The Tidewater certificate of incorporation requires the affirmative vote of at least 80% of the voting power of the outstanding shares of Tidewater’s capital stock, voting together as a single class, to amend, repeal or adopt any provision inconsistent with the provision of its charter prohibiting stockholders acting by written consent.

Size of Tidewater Board and Vacancies. The Tidewater bylaws provide that the Tidewater Board shall consist of five or more members, the exact number to be fixed by the Tidewater Board from time to time. The Tidewater bylaws further provide that, subject to the rights of holders of any series of preferred stock to elect directors under specific circumstances, any newly created directorships resulting from an increase in the authorized number of directors and any vacancies occurring in the Tidewater Board, may be filled by the affirmative vote of a majority of the remaining members of the board, although less than a quorum, or a sole remaining director.

Amendments of the Tidewater Bylaws. The Tidewater bylaws may be amended or repealed and new bylaws may be adopted by the Tidewater Board, subject to the stockholders’ power to make additional bylaws or alter and repeal any bylaws, whether such bylaws were originally adopted by them or otherwise.

Limitations on Ownership by Non-U.S. Citizens. Because Tidewater owns and operates U.S.-flag vessels in U.S. coastwise trade, it is subject to the Jones Act, which, subject to limited exceptions, restricts maritime transportation between points in the United States (known as marine cabotage services or coastwise trade) to vessels built in the United States, registered under the U.S. flag, manned by predominantly U.S. crews, and owned and operated by U.S. citizens within the meaning of the Jones Act. Under the Jones Act, at least 75% of the outstanding shares of each class or series of the capital stock of Tidewater must be owned and controlled by U.S. citizens. In order to ensure compliance with the Jones Act coastwise citizenship requirement that at least 75% of Tidewater’s outstanding common stock is owned by U.S. citizens, the Tidewater certificate of incorporation restricts ownership of the shares of its outstanding common stock by non-U.S. citizens in the aggregate to not more than 24%. The Tidewater certificate of incorporation further prohibits the acquisition of shares by a non-U.S. citizen where (i) such acquisition would cause the aggregate number of shares held by all non-U.S. citizens to exceed 24% of Tidewater’s issued and outstanding common stock and (ii) such acquisition would cause the aggregate number of shares held by any individual non-U.S. citizen to exceed 4.9% of Tidewater’s issued and outstanding common stock. The Tidewater certificate of incorporation further provides the Tidewater Board with authority to redeem any share of common stock that is owned by a non-U.S. citizen that would result in ownership by non-U.S. citizens in the aggregate in excess of 24% of Tidewater’s issued and outstanding common stock. The Tidewater certificate of incorporation also provides that Tidewater may require beneficial owners of its common stock to confirm their citizenship from time to time through written statement or affidavit and could, at the discretion of the Tidewater Board, suspend the voting rights of such beneficial owner, pay into an escrow account dividends or other distributions (upon liquidation or otherwise) with respect to such shares held by such beneficial owner and restrict, prohibit or void the transfer of such shares and refuse to register such shares of Tidewater common stock held by such beneficial owner until confirmation of its citizenship status is received.

Choice of Forum

The Tidewater certificate of incorporation provides that unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware will, to the fullest extent permitted by applicable law, be the sole and exclusive forum for:

If the Court of Chancery of the State of Delaware lacks jurisdiction over such action or proceeding, the sole and exclusive forum for such action or proceeding shall be another court of the State of Delaware or, if no court of the State of Delaware has jurisdiction, then the federal district court for the District of Delaware. Tidewater’s certificate of incorporation also provides that any person or entity holding, purchasing or otherwise acquiring any interest in shares of Tidewater’s capital stock will be deemed to have consented to the personal jurisdiction of the Court of Chancery of the State of Delaware (or if the Court of Chancery does not have jurisdiction, another court of the State of Delaware, or if no court of the State of Delaware has jurisdiction, the federal district court for the District of Delaware) in any proceeding brought to enjoin any action by that person or entity that is inconsistent with the exclusive jurisdiction provided for Tidewater’s certificate of incorporation. To the fullest extent permitted by applicable law, if any action the subject matter of which is within the scope of the exclusive forum provision is filed in a court other than as specified above in the name of any stockholder, such stockholder shall be deemed to have consented to (a) the personal jurisdiction of the Court of Chancery of the State of Delaware, another court in the State of Delaware or the federal district court in the District of Delaware, as appropriate, in connection with any action brought in any such court to enforce the exclusive forum provision and (b) having service of process made upon such stockholder in any such action by service upon such stockholder’s counsel in the action as agent for such stockholder.

Although Tidewater believes these provisions will benefit it by providing increased consistency in the application of Delaware law for the specified types of actions and proceedings, the provisions may have the effect of discouraging lawsuits against Tidewater’s directors, officers, employees and agents. The enforceability of similar exclusive forum provisions in other companies’ certificates of incorporation has been challenged in legal proceedings, and it is possible that, in connection with one or more actions or proceedings described above, a court could rule that this provision in Tidewater’s certificate of incorporation is inapplicable or unenforceable.

Preferred Stock Purchase Rights

On April 13, 2020, the Tidewater Board adopted a Tax Benefits Preservation Plan (the “Rights Plan”) by and between the Company and Computershare Trust Company, N.A., a federally chartered trust company, as rights agent, declared a dividend of one preferred stock purchase right (each a “Right” and collectively, the “Rights”) for each share of the Company’s outstanding common stock at the close of business on April 24, 2020 (the “Record Date”) and authorized the issuance of one Right (subject to adjustment as provided in the Rights Plan) with respect to each share of common stock that becomes outstanding between the Record Date and the earlier of the Distribution Date and the Expiration Date (each as defined below). The terms of the Rights are set forth in the Rights Plan.

The Tidewater Board adopted the Rights Plan in an effort to protect the Company from potential adverse consequences arising under Section 382 (“Section 382”) of the Internal Revenue Code, as amended (the “Code”), including a significant reduction in the annual utilization of the Company’s net operating loss carryforwards (“NOLs”) and built-in losses and the impairment or loss of the NOLs and built-in losses prior to their use. We have experienced and may continue to experience substantial operating losses, and under the Code and rules promulgated by the Internal Revenue Service, we may “carry forward” these losses in certain circumstances to offset any current and future earnings and thus reduce our federal income tax liability, subject to certain requirements and restrictions. To the extent that the NOLs do not otherwise become limited, we believe that we will be able to carry forward a significant amount of NOLs, and therefore these NOLs could be a substantial asset to us. However, if we experience an “Ownership Change,” as defined in Section 382, our ability to use the NOLs will be substantially limited, and the timing of the usage of the NOLs could be substantially delayed, which could therefore significantly impair the value of that asset.

The Rights. Subject to the terms, provisions and conditions of the Rights Plan, if the Rights become exercisable, each Right would initially represent the right to purchase from the Company one one-thousandth (subject to adjustment) of a share of our Series A Junior Participating Preferred Stock, no par value (the “Preferred Stock”), at a purchase price of $38.00 per one one-thousandth of a share of Preferred Stock, subject to adjustment (the “Purchase Price”). The Preferred Stock may be issued in fractions of a share which will entitle the holder, in proportion to such holder’s fractional shares, to exercise voting rights, receive dividends, participate in distributions and to have the benefit of all other rights of holders of Preferred Stock.

Until a Right is exercised, the holder thereof, as such, will have no rights as a stockholder of the Company beyond those as an existing stockholder, including, without limitation, the right to vote or to receive dividends.

Acquiring Person. Under the Rights Plan, an “Acquiring Person” is any person who, together with all affiliates and associates from the date of the Rights Plan, is the beneficial owner of 4.99% or more of the common stock then outstanding. An Acquiring Person does not include (i) an “Exempt Person” (as defined below), (ii) any person that becomes the beneficial owner of 4.99% or more of the common stock solely as a result of equity compensation awards granted to such person by the Company or as a result of an adjustment to the number of shares of common stock represented by such equity compensation award pursuant to the terms thereof, unless and until such time as such person or one or more of its affiliates or associates thereafter acquires beneficial ownership of one additional share of common stock (other than common stock acquired as described in clause this (ii) or pursuant to a dividend or distribution paid or made by the Company on the outstanding common stock in common stock or pursuant to a split or reclassification of the outstanding common stock), or (iii) any Existing Holder (as defined below), unless and until such time as such Existing Holder shall become the beneficial owner of (A) a percentage of the common stock then outstanding that is more than the aggregate percentage of the outstanding common stock that such Existing Holder Beneficially Owns immediately prior to the first public announcement of the adoption of this Agreement plus an amount equal to an additional 0.5% of the outstanding common stock (such aggregate amount being the “Exempt Ownership Percentage”)(excluding any shares of common stock acquired after the first public announcement of the adoption of the Rights Plan in the manner described in the immediately preceding clause (ii) or pursuant to a dividend or distribution paid or made by the Company on the outstanding common stock in common stock or pursuant to a split or reclassification of the outstanding common stock) or (B) less than 4.99% of the common stock then outstanding (after which time, if such person shall be the beneficial owner of 4.99% or more of the common stock then outstanding (other than by virtue of acquiring beneficial ownership of any shares of common stock in the manner described in the immediately preceding clause (ii) or pursuant to a dividend or distribution paid or made by the Company on the outstanding common stock in common stock or pursuant to a split or reclassification of the outstanding common stock), such person shall be or become deemed an Acquiring Person).

No person shall become an “Acquiring Person” as the result of an acquisition of common stock by the Company which, by reducing the number of shares outstanding, increases the proportionate number of shares beneficially owned by such person to 4.99% (or, in the case of an Existing Holder, the Exempt Ownership Percentage) or more of the common stock then outstanding; provided, however, that if a person becomes the beneficial owner of 4.99% (or, in the case of an Existing Holder, the Exempt Ownership Percentage) or more of the common stock then outstanding solely by reason of share purchases by the Company and shall, after such share purchases by the Company, become the beneficial owner of one or more additional shares of common stock (other than pursuant to a dividend or distribution paid or made by the Company on the outstanding common stock in common stock or pursuant to a split or subdivision of the outstanding common stock), then such person shall be deemed to be an “Acquiring Person” unless, upon becoming the beneficial owner of such additional common stock, such person does not beneficially own 4.99% (or, in the case of an Existing Holder, the Exempt Ownership Percentage) or more of the common stock then outstanding.

If the Tidewater Board determines in good faith that a person who would otherwise be an “Acquiring Person,” has become such inadvertently (including, without limitation, because (A) such person was unaware that it beneficially owned a percentage of common stock that would otherwise cause such person to be an “Acquiring Person” or (B) such person was aware of the extent of its beneficial ownership of common stock but had no actual knowledge of the consequences of such beneficial ownership under the Rights Plan), and such person divests as promptly as practicable (as determined in good faith by the Tidewater Board) a sufficient number of shares of common stock so that such person would no longer be an Acquiring Person, then such person shall not be deemed to be or have become an Acquiring Person at any time for any purposes of the Rights Plan. For all purposes of the Rights Plan, any calculation of the number of shares of common stock outstanding at any particular time, for purposes of determining the particular percentage of such outstanding common stock of which any person is the beneficial owner, shall be made pursuant to and in accordance with Section 382.

“Existing Holder” means any person, immediately prior to the first public announcement of the adoption of the Rights Plan, is the beneficial owner of 4.99% or more of the common stock then outstanding, together with any affiliates and associates of such person.

“Exempt Person” means (i) the Company, any subsidiary of the Company, in each case including, without limitation, the officers and board of directors thereof acting in their fiduciary capacity, or any employee benefit plan of the Company or of any subsidiary of the Company or any entity or trustee holding shares of capital stock of the Company for or pursuant to the terms of any such plan, or for the purpose of funding other employee benefits for employees of the Company or any subsidiary of the Company, (ii) any person deemed to be an “Exempt Person” in accordance with the Rights Plan, (iii) any other person whose beneficial ownership (together with all affiliates and associates of such person) of shares in excess of 4.99% of the then-outstanding common stock (or, in the case of an Existing Holder, shares of common stock in excess of the Exempt Ownership Percentage) will not, as determined by the Tidewater Board in its sole discretion, jeopardize or endanger the value or availability to the Company of the Company’s tax attributes, and (iv) any other person if the Tidewater Board has determined in good faith that such person shall be an “Exempt Person”; provided, however, that any person deemed to be an “Exempt Person” pursuant to subclauses (ii) or (iii) will cease to be an “Exempt Person” if the Tidewater Board thereafter makes a determination that such person’s beneficial ownership (together with all affiliates and associates of such person) would, notwithstanding its prior determination to the contrary, jeopardize or endanger the value or availability to the Company of the tax attributes.

Exercisability. Until the earlier to occur of (i) the tenth business day following a public announcement that a person or group of affiliated or associated persons has become an Acquiring Person or (ii) ten business days (or such later date as may be determined by action of the Tidewater Board of prior to such time as any person or group of affiliated persons becomes an Acquiring Person) following the commencement or announcement of an intention to make a tender offer or exchange offer the consummation of which would result in any person becoming an Acquiring Person (the earlier of (i) and (ii) being called the “Distribution Date”), the Rights will be evidenced, with respect to any of the common stock certificates outstanding as of the Record Date, by such common stock certificate (or, with respect to any shares of common stock held in book entry form, by the notation in book entry) together with a copy of the related summary of rights.

Any transfer of common stock prior to the Distribution Date will constitute a transfer of the associated Rights. After the Distribution Date, the Rights may be transferred other than in connection with the transfer of the underlying shares of common stock.

After the time at which a person becomes an Acquiring Person (the “Trigger Event”) upon expiration of the redemption period, each holder of a Right, other than Rights beneficially owned by the Acquiring Person (which will thereupon become void), will thereafter have the right to receive upon exercise at a price per Right equal to the then current Purchase Price multiplied by the number of one-thousandths of a share of Preferred Stock for which a right is then exercisable, in accordance with the terms of the Rights Plan and in lieu of Preferred Stock, such number of shares of common stock which equals the result obtained by (x) multiplying the then current Purchase Price by the then number of one one-thousandths of a share of Preferred Stock for which a Right is then exercisable and (y) dividing that product by 50% of the current per share market price of the common stock on the first date of the occurrence of, or the date of the first public announcement of, the Trigger Event.

Until a Right is exercised, the holder thereof, as such, will have no rights as a stockholder of the Company beyond those as an existing stockholder, including, without limitation, the right to vote or to receive dividends.

Exchange of Common Stock for Rights. After the occurrence of a Trigger Event and prior to the acquisition by such Acquiring Person of 50% or more of the outstanding common stock, the Tidewater Board may cause the Company to exchange the Rights (other than Rights owned by an Acquiring Person which will have become void), in whole or in part, for common stock at an exchange rate of one share of common stock per Right (subject to adjustment).

Expiration. The Rights will expire on the earliest of (i) the close of business on April 13, 2023, (ii) the close of business on the date of the Company’s 2020 annual meeting of stockholders (the “2020 Annual Meeting”) if a proposal soliciting stockholder approval of the Rights Plan is not included in the proxy statement related to the 2020 Annual Meeting and approved by the affirmative vote of a majority of the votes cast in person or represented by proxy and entitled to vote on such proposal, (iii) the time at which the Rights are redeemed as provided in Rights Plan, (iv) the time at which the Rights are exchanged as provided in the Rights Plan, (v) the closing of any merger or other acquisition transaction involving the Company pursuant to an agreement of the type described in the Rights Plan, (vi) the close of business on the effective date of the repeal of Section 382 if the Tidewater Board determines that the Rights Plan is no longer necessary or desirable for the preservation of the tax attributes or (vii) the close of business on the first day of a taxable year of the Company to which the Tidewater Board determines that no tax attributes may be carried forward or otherwise utilized (the earliest of (i) – (vii) is referred to as the “Expiration Date”). The Rights Plan was included in the Company’s proxy statement related to the 2020 Annual Meeting and was subsequently approved by the Company’s shareholders at the 2020 Annual Meeting held on July 28, 2020.

Redemption. The Tidewater Board may, at its option, at any time prior to the earlier of (a) the tenth business day following a public announcement that a person or group of affiliated or associated persons has acquired beneficial ownership of 4.99% or more of the common stock, and (b) April 13, 2023, redeem all but not less than all of the then outstanding Rights at a redemption price of $0.001 per Right, appropriately adjusted to reflect any stock split, stock dividend, recapitalization or similar transaction occurring after the date hereof (the “Redemption Price”), and the Company may, at its option, pay the Redemption Price in common stock (based on the current per share market price at the time of redemption), cash or any other form of consideration deemed appropriate by the Tidewater Board. The redemption of the Rights by the Tidewater Board may be made effective at such time, on such basis and subject to such conditions as the Tidewater Board in its sole discretion may establish.

Rights of Preferred Stock. Each share of Preferred Stock purchasable upon exercise of the Rights will be entitled, when, as and if declared, to a minimum preferential quarterly dividend payment of 1,000 times the dividend, if any, declared per share of common stock. In the event of liquidation, dissolution or winding up of the Company, the holders of the Preferred Stock will be entitled to a minimum preferential liquidation payment of $10.00 per share (plus any accrued but unpaid dividends), provided that such holders of the Preferred Stock will be entitled to an aggregate payment of 1,000 times the payment made per share of common stock. Each share of Preferred Stock will have 1,000 votes and will vote together with the common stock. Finally, in the event of any merger, consolidation or other transaction in which common stock are exchanged, each share of Preferred Stock will be entitled to receive 1,000 times the amount received per share of common stock. Preferred Stock will not be redeemable. Because of the nature of the Preferred Stock’s dividend, liquidation and voting rights, the value of one one-thousandth of a share of Preferred Stock purchasable upon exercise of each Right should approximate the value of one share of common stock.

Anti-Dilution Provisions. The Purchase Price payable, and the number of shares of Preferred Stock or other securities or property issuable, upon exercise of the Rights are subject to adjustment from time to time to prevent dilution (i) in the event of a stock dividend on, or a subdivision, combination or reclassification of the Preferred Stock, (ii) upon the grant to holders of the Preferred Stock of certain rights or warrants to subscribe for or purchase Preferred Stock or convertible securities at less than the current market price of the Preferred Stock or (iii) upon the distribution to holders of the Preferred Stock of evidences of indebtedness, cash, securities or assets (excluding regular periodic cash dividends at a rate not in excess of 125% of the rate of the last regular periodic cash dividend theretofore paid or, in case regular periodic cash dividends have not theretofore been paid, at a rate not in excess of 50% of the average net income per share of the Company for the four quarters ended immediately prior to the payment of such dividend, or dividends payable in Preferred Stock (which dividends will be subject to the adjustment described in clause (i) above)) or of subscription rights or warrants (other than those referred to above).

Amendments. For so long as the Rights are then redeemable, the Company may in its sole and absolute discretion supplement or amend any provision of the Rights Plan in any respect without the approval of any holders of Rights or common stock. From and after the time that the Rights are no longer redeemable, the Company may from time to time supplement or amend the Rights Plan without the approval of any holders of Rights (i) to cure any ambiguity or to correct or supplement any provision contained herein which may be defective or inconsistent with any other provisions herein or (ii) to make any other changes or provisions in regard to matters or questions arising hereunder which the Company may deem necessary or desirable, including but not limited to extending the final expiration date of the Rights; provided, however, that no such supplement or amendment shall adversely affect the interests of the holders of Rights as such (other than an Acquiring Person or an affiliate or associate of an Acquiring Person), and no such supplement or amendment may cause the Rights again to become redeemable or cause the Rights Plan again to become amendable as to an Acquiring Person or an affiliate or associate of an Acquiring Person other than in accordance with this sentence; provided further, that the right of the Tidewater Board to extend the Distribution Date shall not require any amendment or supplement hereunder.

Anti-Takeover Effects. While intended to reduce the risk of an “ownership change” within the meaning of Section 382, and thereby preserve the current ability of the Company to utilize NOLs, the Rights could have certain anti-takeover effects. The Rights will cause substantial dilution to a person or group who becomes an Acquiring Person on terms not approved by the Tidewater Board. The Rights should not interfere with any merger or other business combination approved by the Tidewater Board since the Tidewater Board may exempt such merger or business combination from the Rights Plan. In addition, the Rights may be redeemed by the Company at $0.001 per Right at any time prior to the close of business on the tenth business day after there has been a public announcement, or resolution of the Tidewater Board confirming, that a person or group has become an Acquiring Person.

Shares Eligible for Future Sale

Tidewater cannot predict the effect, if any, that future sales of shares of its common stock, or the availability of shares for future sales, will have on the market price prevailing from time to time. The sale of substantial amounts of shares of Tidewater common stock, or the perception that such sales could occur, could adversely affect the prevailing market price of the shares.

DESCRIPTION OF DEBT SECURITIES

The following description, together with the additional information we include in any applicable prospectus supplement, summarizes certain general terms and provisions of the debt securities that we may offer under this prospectus. When we offer to sell a particular series of debt securities, we will describe the specific terms of the series in a supplement to this prospectus. We will also indicate in the supplement to what extent the general terms and provisions described in this prospectus apply to a particular series of debt securities.

We may issue debt securities either separately, or together with, or upon the conversion or exercise of or in exchange for, other securities described in this prospectus. Debt securities may be our senior, senior subordinated or subordinated obligations and, unless otherwise specified in a supplement to this prospectus, the debt securities will be our direct, unsecured obligations and may be issued in one or more series.

If specified in the prospectus supplement respecting a particular series of debt securities, one or more guarantors identified therein will fully and unconditionally guarantee that series described in the prospectus supplement. Each guarantee will be an unsecured obligation of the guarantor. A guarantee of subordinated debt securities will be subordinated to the senior debt of the guarantor on the same basis as the subordinated debt securities are subordinated to our senior debt.

We have summarized select portions of the indenture below. The summary is not complete. The form of the indenture has been incorporated by reference as an exhibit to the registration statement and you should read the indenture for provisions that may be important to you. Capitalized terms used in the summary and not defined herein have the meanings specified in the indenture.

As used in this section only, “Tidewater,” “we,” “our” or “us” refer to Tidewater Inc. excluding our subsidiaries, unless expressly stated or the context otherwise requires.

General

The terms of each series of debt securities will be established by or pursuant to a resolution of our board of directors and/or committee thereof and set forth or determined in the manner provided in a resolution of our board of directors and/or committee thereof, in an officer’s certificate or by a supplemental indenture. The particular terms of each series of debt securities will be described in a prospectus supplement relating to such series (including any pricing supplement or term sheet).

We can issue an unlimited amount of debt securities under the indenture that may be in one or more series with the same or various maturities, at par, at a premium, or at a discount. We will set forth in a prospectus supplement (including any pricing supplement or term sheet) relating to any series of debt securities being offered, the aggregate principal amount and the following terms of the debt securities, if applicable:

We may issue debt securities that provide for an amount less than their stated principal amount to be due and payable upon declaration of acceleration of their maturity pursuant to the terms of the indenture. We will provide you with information on the federal income tax considerations and other special considerations applicable to any of these debt securities in the applicable prospectus supplement.

If we denominate the purchase price of any of the debt securities in a foreign currency or currencies or a foreign currency unit or units, or if the principal of and any premium and interest on any series of debt securities is payable in a foreign currency or currencies or a foreign currency unit or units, we will provide you with information on the restrictions, elections, general tax considerations, specific terms and other information with respect to that issue of debt securities and such foreign currency or currencies or foreign currency unit or units in the applicable prospectus supplement.

Guarantees

If specified in the applicable prospectus supplement respecting a particular series of debt securities, one or more of the guarantors will fully, unconditionally, irrevocably, absolutely and jointly and severally guarantee the due and punctual payment of the principal of, and premium, if any, and interest on the debt securities and all other amounts due and payable by us under the indenture and the debt securities, when and as such principal, premium, if any, interest and other amounts shall become due and payable. The guarantee of any debt securities is intended to be a general, unsecured, senior obligation of each of the guarantors and will rank pari passu in right of payment with all indebtedness of each guarantor that is not, by its terms, expressly subordinated in right of payment to the guarantee.

Transfer and Exchange

Each debt security will be represented by either one or more global securities registered in the name of a clearing agency appointed by us (the “Depositary”) or a nominee of the Depositary (we will refer to any debt security represented by a global debt security as a “book-entry debt security”), or a certificate issued in definitive registered form (we will refer to any debt security represented by a certificated security as a “certificated debt security”) as set forth in the applicable prospectus supplement. Except as set forth under the heading “Global Debt Securities and Book-Entry System” below, book-entry debt securities will not be issuable in certificated form.

Certificated Debt Securities. You may transfer or exchange certificated debt securities at any office we maintain for this purpose in accordance with the terms of the indenture. No service charge will be made for any transfer or exchange of certificated debt securities, but we may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection with a transfer or exchange.

You may effect the transfer of certificated debt securities and the right to receive the principal of, premium, if any, and interest on certificated debt securities only by surrendering the certificate representing those certificated debt securities and either reissuance by us or the trustee of the certificate to the new holder or the issuance by us or the trustee of a new certificate to the new holder.

Global Debt Securities and Book-Entry System. Each global debt security representing book-entry debt securities will be deposited with, or on behalf of, the Depositary, and registered in the name of the Depositary or a nominee of the Depositary.

Covenants

We will set forth in the applicable prospectus supplement any restrictive covenants applicable to any issue of debt securities.

No Protection In the Event of a Change of Control

Unless we state otherwise in the applicable prospectus supplement, the debt securities will not contain any provisions which may afford holders of the debt securities protection in the event we have a change in control or in the event of a highly leveraged transaction (whether or not such transaction results in a change in control) which could adversely affect holders of debt securities.

Consolidation, Merger and Sale of Assets

We may not consolidate with or merge with or into, or convey, transfer or lease all or substantially all of our properties and assets to any person (a “successor person”) unless:

Notwithstanding the above, any of our subsidiaries and any guarantor may consolidate with, merge into or transfer all or part of its properties to us or any guarantor.

Events of Default

Unless we state otherwise in the applicable prospectus supplement, “Event of Default” means with respect to any series of debt securities, any of the following:

No Event of Default with respect to a particular series of debt securities (except as to certain events of bankruptcy, insolvency or reorganization) necessarily constitutes an Event of Default with respect to any other series of debt securities. The occurrence of certain Events of Default or an acceleration under the indenture may constitute an event of default under certain indebtedness of ours or our subsidiaries outstanding from time to time.

If an Event of Default with respect to debt securities of any series at the time outstanding occurs and is continuing, then the trustee or the holders of not less than 25% in principal amount of the outstanding debt securities of that series may, by a notice in writing to us (and to the trustee if given by the holders), declare to be due and payable immediately the principal of (or, if the debt securities of that series are discount securities, that portion of the principal amount as may be specified in the terms of that series) and accrued and unpaid interest, if any, on all debt securities of that series. In the case of an Event of Default resulting from certain events of bankruptcy, insolvency or reorganization, the principal (or such specified amount) of and accrued and unpaid interest, if any, on all outstanding debt securities will become and be immediately due and payable without any declaration or other act on the part of the trustee or any holder of outstanding debt securities. At any time after a declaration of acceleration with respect to debt securities of any series has been made, but before a judgment or decree for payment of the money due has been obtained by the trustee, the holders of a majority in principal amount of the outstanding debt securities of that series may rescind and annul the acceleration if all Events of Default, other than the non-payment of accelerated principal and interest, if any, with respect to debt securities of that series, have been cured or waived as provided in the indenture. We refer you to the prospectus supplement relating to any series of debt securities that are discount securities for the particular provisions relating to acceleration of a portion of the principal amount of such discount securities upon the occurrence of an Event of Default.

The indenture provides that the trustee will be under no obligation to exercise any of its rights or powers under the indenture unless the trustee receives indemnity satisfactory to it against any cost, liability or expense which might be incurred by it in exercising such right of power. Subject to certain rights of the trustee, the holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee or exercising any trust or power conferred on the trustee with respect to the debt securities of that series.

No holder of any debt security of any series will have any right to institute any proceeding, judicial or otherwise, with respect to the indenture or for the appointment of a receiver or trustee, or for any remedy under the indenture, unless:

Notwithstanding any other provision in the indenture, the holder of any debt security will have an absolute and unconditional right to receive payment of the principal of, premium and any interest on that debt security on or after the due dates expressed in that debt security and to institute suit for the enforcement of payment.

The indenture requires us, within 90 days after the end of our fiscal year, to furnish to the trustee a statement as to compliance with the indenture. If a Default or Event of Default occurs and is continuing with respect to the securities of any series and if it is known to a responsible officer of the trustee, the trustee shall mail to each holder of the securities of that series notice of a Default or Event of Default within 90 days after it occurs. The indenture provides that the trustee may withhold notice to the holders of debt securities of any series of any Default or Event of Default (except in payment on any debt securities of that series) with respect to debt securities of that series if the trustee determines in good faith that withholding notice is in the interest of the holders of those debt securities.

Modification and Waiver

We and the trustee may modify and amend the indenture or the debt securities of any series without the consent of any holder of any debt security:

We may also modify and amend the indenture with the consent of the holders of at least a majority in principal amount of the outstanding debt securities of each series affected by the modifications or amendments. We may not make any modification or amendment without the consent of the holders of each affected debt security then outstanding if that amendment will:

Except for certain specified provisions, the holders of at least a majority in principal amount of the outstanding debt securities of any series may on behalf of the holders of all debt securities of that series waive our compliance with provisions of the indenture. The holders of a majority in principal amount of the outstanding debt securities of any series may on behalf of the holders of all the debt securities of such series waive any past default under the indenture with respect to that series and its consequences, except a default in the payment of the principal of, premium or any interest on any debt security of that series; provided, however, that the holders of a majority in principal amount of the outstanding debt securities of any series may rescind an acceleration and its consequences, including any related payment default that resulted from the acceleration.

Defeasance of Debt Securities and Certain Covenants in Certain Circumstances

Legal Defeasance. The indenture provides that, unless otherwise provided by the terms of the applicable series of debt securities, we may be discharged from any and all obligations in respect of the debt securities of any series (subject to certain exceptions). We will be so discharged upon the deposit with the trustee, in trust, of money and/or U.S. government obligations or, in the case of debt securities denominated in a single currency other than U.S. Dollars, government obligations of the government that issued or caused to be issued such currency, that, through the payment of interest and principal in accordance with their terms, will provide money in an amount sufficient in the opinion of a nationally recognized firm of independent public accountants or investment bank to pay and discharge each installment of principal, premium and interest on and any mandatory sinking fund payments in respect of the debt securities of that series on the stated maturity of those payments in accordance with the terms of the indenture and those debt securities.

This discharge may occur only if, among other things, we have delivered to the trustee an opinion of counsel stating that we have received from, or there has been published by, the United States Internal Revenue Service a ruling or, since the date of execution of the indenture, there has been a change in the applicable United States federal income tax law, in either case to the effect that, and based thereon such opinion shall confirm that, the holders of the debt securities of that series will not recognize income, gain or loss for United States federal income tax purposes as a result of the deposit, defeasance and discharge and will be subject to United States federal income tax on the same amounts and in the same manner and at the same times as would have been the case if the deposit, defeasance and discharge had not occurred.

Defeasance of Certain Covenants. The indenture provides that, unless otherwise provided by the terms of the applicable series of debt securities, upon compliance with certain conditions:

The conditions include:

Covenant Defeasance and Events of Default. In the event we exercise our option to effect covenant defeasance with respect to any series of debt securities and the debt securities of that series are declared due and payable because of the occurrence of any Event of Default, the amount of money and/or U.S. government obligations or foreign government obligations on deposit with the trustee will be sufficient to pay amounts due on the debt securities of that series at the time of their stated maturity but may not be sufficient to pay amounts due on the debt securities of that series at the time of the acceleration resulting from the Event of Default. However, we shall remain liable for those payments.

Governing Law

The indenture and the debt securities, including any claim or controversy arising out of or relating to the indenture or the securities, will be governed by the laws of the State of New York (without regard to the conflicts of laws provisions thereof other than Section 5-1401 of the General Obligations Law).

The Trustee

We will enter into the indentures with a trustee that is qualified to act under the Trust Indenture Act of 1939, as amended, and with any other trustees chosen by us and appointed in a supplemental indenture for a particular series of debt securities. We may maintain a banking relationship in the ordinary course of business with our trustee and one or more of its affiliates.

Resignation or Removal of Trustee. If the trustee has or acquires a conflicting interest within the meaning of the Trust Indenture Act, the trustee must either eliminate its conflicting interest or resign, to the extent and in the manner provided by, and subject to the provisions of, the Trust Indenture Act and the applicable indenture. Any resignation will require the appointment of a successor trustee under the applicable indenture in accordance with the terms and conditions of such indenture.

The trustee may resign or be removed by us with respect to one or more series of debt securities and a successor trustee may be appointed to act with respect to any such series. The holders of a majority in aggregate principal amount of the debt securities of any series may remove the trustee with respect to the debt securities of such series.

Limitations on Trustee if It Is Our Creditor. The indenture will contain certain limitations on the right of the trustee, in the event that it becomes our creditor, to obtain payment of claims in certain cases, or to realize on certain property received in respect of any such claim as security or otherwise.

Certificates and Opinions to Be Furnished to Trustee. The indenture will provide that, in addition to other certificates or opinions that may be specifically required by other provisions of the indenture, every application by us for action by the trustee must be accompanied by an Officer’s Certificate and an Opinion of Counsel stating that, in the opinion of the signers, all conditions precedent to such action have been complied with by us.

DESCRIPTION OF DEPOSITARY SHARES

We may offer fractional interests in shares of preferred stock rather than full shares of preferred stock. In that event, depositary receipts will be issued to evidence depositary shares, each of which will represent a fraction of a share of a particular series of preferred stock, as described in the prospectus supplement relating to the particular issue of depositary shares.

The shares of preferred stock represented by depositary shares will be deposited under a deposit agreement between us and a depositary that is a bank or trust company, as depositary, that we select as set forth in the prospectus supplement relating to the particular issue of depositary shares. Unless otherwise specified in the prospectus supplement relating to a particular issue of depositary shares, each owner of a depositary share will be entitled, in proportion to the applicable fraction of a share of preferred stock represented by such depositary share, to all the rights and preferences of the shares of preferred stock represented by such depositary share, including dividend and liquidation rights and any right to convert the shares of preferred stock into common stock.

We will describe the terms of any depositary shares we offer and the related depositary agreement, as well as the terms of the shares of preferred stock represented thereby, in the prospectus supplement relating to the particular issue of depositary shares.

DESCRIPTION OF PREFERRED STOCK

Our certificate of incorporation authorizes our board of directors, without further stockholder action, to provide for the issuance of up to 3,000,000 shares of preferred stock, without par value, in one or more series, and to fix the number of shares to be included in any series and the designations, powers, preferences, rights, qualifications, limitations and restrictions in respect of the shares of such series. The preferred stock will be governed by Delaware law. As of June 30, 2021, there were no shares of preferred stock outstanding.

The particular terms of any series of preferred stock that we offer under this prospectus will be described in the applicable prospectus supplement relating to that series of preferred stock. Those terms may include:

Each prospectus supplement may describe certain United States federal income tax considerations applicable to the purchase, holding and disposition of the preferred stock that the prospectus supplement covers.

If the terms of any series of preferred stock being offered differ from the terms set forth in this prospectus, those terms will also be disclosed in the applicable prospectus supplement relating to that series of preferred stock.

The preferred stock will, when issued, be fully paid and nonassessable.

In addition, as described above under “Description of Depositary Shares,” we may, at our option, instead of offering whole individual shares of any series of preferred stock, offer depositary shares evidenced by depositary receipts. The rights of holders of preferred stock may be adversely affected by the rights of holders of preferred stock that may be issued in the future. The Tidewater Board may cause shares of preferred stock to be issued in public or private transactions for any proper corporate purpose. The issuance of any such preferred stock could adversely affect the rights of the holders of our common stock and therefore, reduce the value of the common stock. The ability of the Tidewater Board to issue preferred stock could discourage, delay, or prevent a takeover of us.

DESCRIPTION OF UNITS

As specified in the applicable prospectus supplement, we may issue units comprised of two or more of the other securities described in this prospectus in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The applicable prospectus supplement will describe:

The unit agreement, together with the terms of the underlying securities, will be filed with the SEC in connection with the offering of the specific units.

DESCRIPTION OF WARRANTS

We may issue warrants entitling the holder to purchase our debt securities, preferred stock, common stock or depositary shares as described in the prospectus supplement relating to the issuance of the warrants. Warrants may be issued independently or together with other of our securities and may be attached to or separate from other securities. The warrants will be issued under warrant agreements to be entered into between us and a bank or trust company that acts as warrant agent. The warrant agent will act solely as our agent in connection with warrants and will not assume any obligation or relationship of agency or trust for or with any holders of warrants or beneficial owners of warrants.

We will file the form of any warrant agreement with the SEC, and you should read the warrant agreement for provisions that may be important to you.

The prospectus supplement will describe the terms of any warrants offered, including the following:

Warrants will be issued in registered form only. The exercise price for warrants will be subject to adjustment in accordance with the applicable prospectus supplement.

Each warrant will entitle the holder thereof to purchase such principal amount of debt securities or such number of shares of preferred stock, common stock or depositary shares at such exercise price as shall in each case be set forth in, or calculable from, the prospectus supplement relating to the warrants, which exercise price may be subject to adjustment upon the occurrence of certain events as set forth in such prospectus supplement. After the close of business on the expiration date, or such later date to which such expiration date may be extended by us, unexercised warrants will become void. The place or places where, and the manner in which, warrants may be exercised shall be specified in the prospectus supplement relating to such warrants.

Prior to the exercise of any warrants to purchase debt securities, preferred stock, common stock or depositary shares, holders of such warrants will not have any of the rights of holders of such debt securities, preferred stock, common stock or depositary shares, as the case may be, purchasable upon such exercise, including the right to receive payments of principal of, premium, if any, or interest, if any, on the debt securities purchasable upon such exercise or to enforce covenants in the applicable indenture, or to receive payments of dividends, if any, on the preferred stock, or common stock purchasable upon such exercise, or to exercise any applicable right to vote or to exercise any rights of holders of depositary receipts in respect of the depositary shares purchasable upon such exercise.

PLAN OF DISTRIBUTION

We may sell the offered securities in and outside the United States (1) through underwriters or dealers; (2) directly to purchasers, including our affiliates and shareholders, or in a rights offering; (3) through agents (acting as agent or principal); (4) through a combination of any of these methods; or (5) through any other method described in a prospectus supplement. The prospectus supplement may state the terms of the offering of securities, and including the following information:

We may engage in “at-the-market offerings,” within the meaning of Rule 415(a)(4) of the Securities Act, to or through a market maker or into an existing trading market, on an exchange or otherwise. In addition, we may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement indicates, in connection with those derivatives, the third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third parties may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third parties in such sale transactions will be underwriters and, if not identified in this prospectus, will be identified in the applicable prospectus supplement (or a post-effective amendment). We or one of our affiliates may loan or pledge securities to a financial institution or other third party that in turn may sell the securities using this prospectus. Such financial institution or third party may transfer its short position to investors in our securities or in connection with a simultaneous offering of other securities offered by this prospectus or otherwise.

Sale through Underwriters or Dealers

If we use underwriters in the sale, the underwriters will acquire the securities for their own account for resale to the public. The underwriters may resell the securities from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. Underwriters may offer securities to the public either through underwriting syndicates represented by one or more managing underwriters or directly by one or more firms acting as underwriters. Unless we inform you otherwise in the prospectus supplement, the obligations of the underwriters to purchase the securities will be subject to certain conditions, and the underwriters will be obligated to purchase all of the offered securities if they purchase any of them. The underwriters may change from time to time any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers.

Representatives of the underwriters through whom the offered securities are sold for public offering and sale may engage in over-allotment, stabilizing transactions, syndicate short covering transactions and penalty bids in accordance with Regulation M under the Exchange Act. Overallotment involves syndicate sales in excess of the offering size, which creates a syndicate short position. Stabilizing transactions permit bids to purchase the offered securities so long as the stabilizing bids do not exceed a specified maximum. Syndicate covering transactions involve purchases of the offered securities in the open market after the distribution has been completed in order to cover syndicate short positions. Penalty bids permit the representative of the underwriters to reclaim a selling concession from a syndicate member when the offered securities originally sold by such syndicate member are purchased in a syndicate covering transaction to cover syndicate short positions. Such stabilizing transactions, syndicate covering transactions and penalty bids may cause the price of the offered securities to be higher than it would otherwise be in the absence of such transactions. These transactions may be effected on a national securities exchange and, if commenced, may be discontinued at any time.

Some or all of the securities that we offer through this prospectus may be new issues of securities with no established trading market. Any underwriters to whom we sell our securities for public offering and sale may make a market in those securities, but they will not be obligated to do so and they may discontinue any market making at any time without notice. Accordingly, we cannot assure you of the liquidity of, or continued trading markets for, any securities that we offer.

If we use dealers in the sale of securities, we will sell the securities to them as principals. They may then resell those securities to the public at varying prices determined by the dealers at the time of resale. If applicable, we will include in the prospectus supplement the names of the dealers and the terms of the transaction.

Direct Sales and Sales through Agents

We may sell the securities directly. In this case, no underwriters or agents would be involved. We may also sell the securities through agents designated from time to time. In the prospectus supplement, we will name any agent involved in the offer or sale of the offered securities, and we will describe any commissions payable to the agent. Unless we inform you otherwise in the prospectus supplement, any agent will agree to use its reasonable best efforts to solicit purchases for the period of its appointment.

We may sell the securities directly to institutional investors or others who may be deemed to be underwriters within the meaning of the Securities Act with respect to any sale of those securities. We will describe the terms of any such sales in the prospectus supplement.

We may also make direct sales through subscription rights distributed to our existing stockholders on a pro rata basis that may or may not be transferable. In any distribution of subscription rights to our stockholders, if all of the underlying securities are not subscribed for, we may then sell the unsubscribed securities directly to third parties or we may engage the services of one or more underwriters, dealers or agents, including standby underwriters, to sell the unsubscribed securities to third parties.

At-the-Market Offerings

To the extent that we make sales through one or more underwriters or agents in at-the-market offerings, we will do so pursuant to the terms of a sales agency agreement or other at-the-market offering arrangement between us, on one hand, and the underwriters or agents, on the other. If we engage in at-the-market sales pursuant to any such agreement, we will issue and sell our securities through one or more underwriters or agents, which may act on an agency basis or a principal basis. During the term of any such agreement, we may sell securities on a daily basis in exchange transactions or otherwise as we agree with the underwriters or agents. Any such agreement will provide that any securities sold will be sold at prices related to the then prevailing market prices for our securities. Therefore, exact figures regarding proceeds that will be raised or commissions to be paid cannot be determined at this time. Pursuant to the terms of the agreement, we may agree to sell, and the relevant underwriters or agents may agree to solicit offers to purchase blocks of our common stock or other securities. The terms of any such agreement will be set forth in more detail in the applicable prospectus supplement.

Remarketing Arrangements

Offered securities also may be offered and sold, if so indicated in the applicable prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or repayment pursuant to their terms, or otherwise, by one or more remarketing firms, acting as principals for their own accounts or as agents for us. Any remarketing firm will be identified and the terms of its agreements, if any, with us and its compensation will be described in the applicable prospectus supplement. Remarketing firms may be deemed to be underwriters, as that term is defined in the Securities Act, in connection with the securities remarketed.

Delayed Delivery Arrangements

If we so indicate in the prospectus supplement, we may authorize agents, underwriters or dealers to solicit offers from certain types of institutions to purchase securities from us at the public offering price under delayed delivery contracts. These contracts would provide for payment and delivery on a specified date in the future. The contracts would be subject only to those conditions described in the prospectus supplement. The prospectus supplement will describe the commission payable for solicitation of those contracts.

General Information

We may have agreements with the underwriters, dealers and agents to indemnify them against certain civil liabilities, including liabilities under the Securities Act, or to contribute with respect to payments that the underwriters, dealers or agents may be required to make. Underwriters, dealers and agents may engage in transactions with, or perform services for, us in the ordinary course of our business for which they may receive compensation.

LEGAL MATTERS

The validity of the securities being offered by this prospectus will be passed upon for us by Vinson & Elkins L.L.P., our outside legal counsel. Additional legal matters may be passed on for us, or any underwriters, dealers or agents, by counsel we will name in the applicable prospectus supplement.

EXPERTS

The financial statements, and the related financial statement schedule, incorporated in this Registration Statement by reference from the Company’s Annual Report on Form 10-K, and the effectiveness of Tidewater Inc.’s internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports, which are incorporated herein by reference. Such financial statements and financial statement schedule have been so incorporated in reliance upon the reports of such firm given upon their authority as experts in accounting and auditing.

ADDITIONAL INFORMATION AND INFORMATION INCORPORATED BY REFERENCE

Tidewater files annual, quarterly and current reports, proxy statements and other business and financial information with the SEC. Tidewater files reports and other business and financial information with the SEC electronically, and the SEC maintains a website located at http://www.sec.gov containing this information. You will also be able to obtain many of these documents, free of charge, from Tidewater at http://www.tdw.com/ under the “Investor Relations” link and then under the heading “SEC Filings.”

Tidewater has filed a registration statement on Form S-3 under the Securities Act with the SEC to register with the SEC the securities being offered in this prospectus. This prospectus, which constitutes a part of the registration statement, does not contain all of the information set forth in the registration statement or the exhibits and schedules filed with it. For further information about Tidewater and its securities, reference is made to the registration statement and the exhibits and schedules filed with it. Statements contained in this prospectus regarding the contents of any contract or any other document that is filed as an exhibit to the registration statement are not necessarily complete, and each such statement is qualified in all respects by reference to the full text of such contract or other document filed as an exhibit to the registration statement. These documents contain important information about the company and its financial condition.

The SEC allows Tidewater to incorporate certain information into this prospectus by reference to other information that has been filed with the SEC, which means that we can disclose important information to you by referring you to those documents that are considered part of this prospectus. All documents that Tidewater files (but not those that Tidewater furnishes) pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act, after the date of the registration statement of which this prospectus is a part and prior to the effectiveness of the registration statement shall be deemed to be incorporated by reference into this prospectus and will automatically update and supersede the information in this prospectus, and any previously filed documents. All documents that Tidewater files (but not those that Tidewater furnishes) pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act on or after the date of this prospectus and prior to the termination of the offering of any of the securities covered under this prospectus shall be deemed to be incorporated by reference into this prospectus and will automatically update and supersede the information in this prospectus, the applicable prospectus supplement and any previously filed documents.

Any statement contained herein or in a document incorporated or deemed to be incorporated by reference in this prospectus or the applicable prospectus supplement shall be deemed to be modified or superseded for purposes of this prospectus and such applicable prospectus supplement to the extent that a statement contained in this prospectus or such applicable prospectus supplement, or in any other subsequently filed document which also is or is deemed to be incorporated by reference in this prospectus and such applicable prospectus supplement, modifies or supersedes such earlier statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus or such applicable prospectus supplement. The documents that are incorporated by reference contain important information about Tidewater, and you should read this prospectus together with any other documents incorporated by reference in this prospectus.

This prospectus incorporates by reference the following documents that have previously been filed with the SEC by Tidewater (File No. 001-06311):

You may request copies of this prospectus and any of the documents incorporated by reference herein or certain other information concerning Tidewater, without charge, upon written or oral request to the Company’s principal executive office. The address and telephone number of such principal executive office are listed below.

Tidewater Inc.
6002 Rogerdale Road
Suite 600
Houston, Texas 77072
Attention: Investor Relations
Telephone: (713) 470-5300
Email: jstanley@tdw.com

Tidewater has not authorized anyone to provide any information or make any representation about the offering or the Company that is different from, or in addition to, that contained in this prospectus or in any of the materials that have been incorporated into this prospectus. Therefore, if anyone does give you information of this sort, you should not rely on it. If you are in a jurisdiction where offers to sell, or solicitations of offers to purchase, the securities offered by this prospectus, or if you are a person to whom it is unlawful to direct these types of activities, then the offer presented in this prospectus does not extend to you. The information contained in this prospectus speaks only as of the date of this document unless the information specifically indicates that another date applies.

3,520,000 Shares

Tidewater Inc.

Common Stock

PROSPECTUS SUPPLEMENT

Sole Book-Running Manager

August 9, 2022