UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 31, 2022

ONE EQUITY PARTNERS OPEN WATER I CORP.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (212) 277-1500

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation to the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company x

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

On January 25, 2022, the audit committee of the board of directors (the “Audit Committee”) of One Equity Partners Open Water I Corp. (the “Company”) concluded that due to a reclassification of the Company’s temporary and permanent equity, the Company’s previously issued (i) audited balance sheet as of January 26, 2021 included in the Company’s Current Report on Form 8-K, filed with the Securities and Exchange Commission (the “SEC”) on February 1, 2021 (the “Audited Balance Sheet”), (ii) unaudited interim financial statements included in the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2021, filed with the SEC on June 22, 2021, (iii) unaudited interim financial statements included in the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2021, filed with the SEC on August 16, 2021, and (iv) unaudited interim financial statements included in the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2021, filed with the SEC on November 15, 2021 ((ii) through (iv) collectively, the “Affected Periods”), should no longer be relied upon. Since the Company’s initial public offering (“IPO”), the Company has considered its Class A ordinary shares subject to possible redemption to be equal to the redemption value of $10.00 per Class A ordinary share while also taking into consideration that a redemption cannot result in net tangible assets being less than $5,000,001. Previously, the Company did not consider redeemable shares classified as temporary equity as part of net tangible assets. Upon further analysis, the Company’s management has determined that the Class A ordinary shares issued in the IPO can be redeemed or become redeemable subject to the occurrence of future events considered outside of the Company’s control. Therefore, the Company’s management concluded that the redemption value should include all Class A ordinary shares subject to possible redemption, resulting in the Class A ordinary shares subject to possible redemption being equal to their redemption value.

The Company does not expect any of the above changes will have any impact on its cash position and cash held in the trust account established in connection with the IPO.

As such, the Company plans to restate (i) its financial statements for the Affected Periods in the Company’s Quarterly Report on Form 10-Q/A for the quarterly period ended September 30, 2021 (the “Q3 Form 10-Q/A”) and (ii) the Audited Balance Sheet, each to be filed with the SEC.

The Company’s management has concluded that in light of the classification error described above, a material weakness exists in the Company’s internal control over financial reporting and that the Company’s disclosure controls and procedures were not effective. The Company’s remediation plan with respect to such material weakness will be described in more detail in the Q3 Form 10-Q/A.

The Company’s management and the Audit Committee have discussed the matters disclosed in this Current Report on Form 8-K with WithumSmith+Brown, PC, the Company’s independent registered public accounting firm.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: January 31, 2022