UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): May 18, 2018

Talos Energy Inc.

(Exact name of registrant as specified in its charter)

(713) 328-3000

(Registrant’s telephone number, including area code)

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

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

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company    ☐

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.    ☐

Introductory Note

As previously disclosed, on May 10, 2018, Talos Energy Inc. (f/k/a Sailfish Energy Holdings Corporation) (the “Company”) consummated the transactions contemplated by (i) the Transaction Agreement, dated as of November 21, 2017 and (ii) the Exchange Agreement, dated as of November 21, 2017, pursuant to which, among other things, Stone Energy Corporation (“Stone”) and Talos Energy LLC (“Talos”) became wholly owned subsidiaries of the Company.

The Company is filing this Current Report on Form 8-K to present the pre-merger consolidated financial statements of Talos, as accounting acquirer of Stone, on a stand-alone basis for the year ended December 31, 2017, audited in accordance with the standards of the Public Company Accounting Oversight Board (United States) and subject to Securities and Exchange Commission auditor independence rules. Such financial statements were previously included in the Company’s Registration Statement on Form S-4 (File No. 333-222341), audited in accordance with U.S. generally accepted auditing standards and subject to the American Institute of Certified Public Accountants independence rules.

There have been no changes to the pre-merger consolidated financial statements of Talos for the year ended December 31, 2017 filed with this Current Report on Form 8-K, other than those relating to the auditor’s report issued with respect thereto and included therein.

The consolidated financial statements of Talos for the year ended December 31, 2017 are filed herewith as Exhibit 99.1 and incorporated herein by reference.

(d)    Exhibits.

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SIGNATURE

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

Date: May 18, 2018

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