UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 4)*

Vintage Capital Management, LLC

4705 S. Apopka Vineland Road, Suite 206

Orlando, FL 32819

(407) 909-8015

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box: ¨

Note. Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See § 240.13d-7 for other parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

* Percentage calculated based on 44,381,104 shares of common stock, par value $0.01 per share, outstanding as of April 5, 2018, as reported in the Definitive Proxy Statement on Schedule 14A filed by Babcock & Wilcox Enterprises, Inc. on April 12, 2018.

* Percentage calculated based on 44,381,104 shares of common stock, par value $0.01 per share, outstanding as of April 5, 2018, as reported in the Definitive Proxy Statement on Schedule 14A filed by Babcock & Wilcox Enterprises, Inc. on April 12, 2018.

* Percentage calculated based on 44,381,104 shares of common stock, par value $0.01 per share, outstanding as of April 5, 2018, as reported in the Definitive Proxy Statement on Schedule 14A filed by Babcock & Wilcox Enterprises, Inc. on April 12, 2018.

Explanatory Note

This Amendment No. 4 (this “Amendment”) amends and supplements the Schedule 13D filed on December 12, 2017, as amended on January 4, 2018, February 2, 2018 and March 6, 2018 (as amended, the “Schedule 13D”), by the Reporting Persons relating to the Common Stock of the Issuer. Information reported in the Schedule 13D remains in effect except to the extent that it is amended, restated or superseded by information contained in this Amendment. Capitalized terms used but not defined in this Amendment have the respective meanings set forth in the Schedule 13D. All references in the Schedule 13D and this Amendment to the “Statement” will be deemed to refer to the Schedule 13D as amended and supplemented by this Amendment.

Item 3 is amended and restated in its entirety as follows:

Of the shares of Common Stock to which this Statement relates, 6,600,000 shares were purchased on behalf of the Reporting Persons using the investment capital of the Reporting Persons. The aggregate purchase price of the 6,600,000 shares of Common Stock purchased was approximately $19,984,317 (excluding commissions). The remaining 8,232 shares of Common Stock represent time-based restricted stock units (“RSUs”) awarded to Mr. Kahn, in his capacity as a director of the Issuer, as director compensation under the Issuer’s Amended and Restated 2015 Long-Term Incentive Plan. Each RSU granted by the Issuer represents the right to receive one share of Common Stock. The RSUs vested immediately upon the grant on January 3, 2018.

Item 4 is amended to add the following:

On April 10, 2018, the Issuer and Vintage Capital entered into a new equity commitment agreement (the “Equity Commitment Agreement”), which amended and restated the prior letter agreement, dated as of March 1, 2018, between the Issuer and Vintage Capital. Pursuant to the Equity Commitment Agreement, Vintage Capital agreed to fully backstop the Rights Offering for the purpose of providing at least $245 million of new capital. The Equity Commitment Agreement provides for a backstop commitment from Vintage Capital to purchase shares of Common Stock representing any unsold portion of the Rights Offering at a price of $2.00 per share of Common Stock.

The foregoing description of the Equity Commitment Agreement does not purport to be complete and is qualified in its entirety by reference to the Equity Commitment Agreement, a copy of which is attached to this Statement as Exhibit 4 and incorporated by reference.

Paragraphs (a) and (b) of Item 5 are amended and restated in their entirety as follows:

(a) and (b) The responses of the Reporting Persons to rows 7, 8, 9, 10, 11 and 13 on the cover pages of this Statement are incorporated herein by reference. As of 4:00 p.m., Eastern time, on April 13, 2017, the Reporting Persons beneficially owned 6,608,232 shares of Common Stock, representing approximately 14.9% of the outstanding shares of Common Stock. The percentage in this paragraph relating to beneficial ownership of Common Stock is based on 44,381,104 shares of Common Stock outstanding as of April 5, 2018, as reported in the Definitive Proxy Statement on Schedule 14A filed by the Issuer on April 12, 2018.

Kahn Capital, as a member and the majority owner of Vintage Capital, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Vintage Capital, and may be deemed to be the indirect beneficial owner of such shares. Kahn Capital disclaims beneficial ownership of such shares for all other purposes.

Mr. Kahn, as the manager of each of Vintage Capital and Kahn Capital, may be deemed to have the power to direct the voting and disposition of the shares of Common Stock beneficially owned by Vintage Capital, and may be deemed to be the indirect beneficial owner of such shares. Mr. Kahn disclaims beneficial ownership of such shares for all other purposes.

To the knowledge of each of the Reporting Persons, other than as set forth above, none of the persons named in Item 2 is the beneficial owner of any shares of Common Stock..

Item 7 is amended to replace Exhibit 4 with the following:

SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: April 13, 2018

EXHIBIT INDEX