UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE TO

TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)

OF THE SECURITIES EXCHANGE ACT OF 1934

Overseas Shipholding Group, Inc.

(Name of Subject Company (Issuer))

Seahawk MergeCo., Inc.

(Name of Filing Person (Offeror))

Saltchuk Resources, Inc.

(Names of Filing Person (Parent of Offeror))

Class A Common Stock, par value $0.01 per share

(Title of Class of Securities)

69036R863

(CUSIP Number of Class of Securities)

Jerald W. Richards

c/o Saltchuk Resources, Inc.

450 Alaskan Way South, Suite 708

Seattle, Washington 98104

(206) 652-1111

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications on Behalf of Filing Persons)

Copy to:

Christopher J. Voss

Michelle R. McCreery

K&L Gates LLP

925 Fourth Avenue

Seattle, WA 98104

(206) 623-7580

☒ Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer.

Check the appropriate boxes below to designate any transactions to which the statement relates:

☒	Third-party offer subject to Rule 14d-1.
☐	Issuer tender offer subject to Rule 13e-4.
☐	Going-private transaction subject to Rule 13e-3.
☐	Amendment to Schedule 13D under Rule 13d-2.

Check the following box if the filing is a final amendment reporting the results of the tender offer: ☐

If applicable, check the appropriate box(es) below to designate the appropriate rule provision(s) relied upon:

☐	Rule 13e-4(i) (Cross-Border Issuer Tender Offer)
☐	Rule 14d-1(d) (Cross-Border Third Party Tender Offer)

This Tender Offer Statement on Schedule TO relates solely to preliminary communications made before the commencement of a planned tender offer (the “Offer”) by Seahawk MergeCo., Inc. (“Merger Sub”), a wholly owned subsidiary of Saltchuk Resources, Inc. (“Saltchuk”), for all of the outstanding shares of Class A common stock, par value $0.01 per share of Overseas Shipholding Group, Inc. (the “Company”), to be commenced pursuant to the terms of the Agreement and Plan of Merger, dated as of May 19, 2024, by and among the Company, Saltchuk and Merger Sub. If successful, the Offer will be followed by a merger of Merger Sub with and into the Company.

Cautionary Notice Regarding Forward-Looking Statements

Statements contained in this communication regarding matters that are not historical facts are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “believes,” “estimates,” “expects,” “focused,” “continuing to,” “seeking,” “will” and similar expressions (as well as other words or expressions referencing future events, conditions or circumstances) are intended to identify forward-looking statements. These statements include those related to: the ability of the Company and Saltchuk to complete the transactions contemplated by the Merger Agreement, including the parties’ ability to satisfy the conditions to the consummation of the tender offer contemplated thereby and the other conditions set forth in the Merger Agreement, and statements about the expected timetable for completing the transactions. Because such statements deal with future events and are based on the Company’s and Saltchuk’s current expectations, they are subject to various risks and uncertainties and actual results could differ materially from those described in or implied by the statements in this communication. These forward-looking statements are subject to risks and uncertainties, including, without limitation, risks and uncertainties associated with: the timing of the tender offer and the subsequent merger; uncertainties as to how many shares of the Company will be tendered into the tender offer; the risk that competing offers or acquisition proposals will be made; the possibility that various conditions to the consummation of the tender offer and the subsequent merger may not be satisfied or waived; the occurrence of any event, change or other circumstance that could give rise to the termination of the Merger Agreement and other risks and uncertainties affecting the Company, including those discussed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, filed with the Securities and Exchange Commission (the “SEC”) on March 11, 2024, as amended by a filing with the SEC on March 25, 2024, subsequent Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and other filings and reports that the Company makes from time to time with the SEC. Except as may be required by law, neither the Company nor Saltchuk assumes any obligation to update these forward-looking statements, which speak only as of the date they are made, or to update the reasons if actual results differ materially from those anticipated in the forward-looking statements.

Additional Information and Where to Find It

The tender offer for the outstanding shares of Class A common stock of the Company referenced in this communication has not yet commenced. This communication is for informational purposes only, is not a recommendation and is neither an offer to purchase nor a solicitation of an offer to sell shares of the Company or any other securities. This communication is also not a substitute for the tender offer materials that Saltchuk will file with the SEC upon commencement of the tender offer. At the time the tender offer is commenced, Saltchuk will file with the SEC a Tender Offer Statement on Schedule TO, and the Company will file with the SEC a Solicitation/Recommendation Statement on Schedule 14D-9.

THE COMPANY’S STOCKHOLDERS ARE URGED TO READ THE TENDER OFFER STATEMENT (INCLUDING AN OFFER TO PURCHASE, A RELATED LETTER OF TRANSMITTAL AND CERTAIN OTHER TENDER OFFER DOCUMENTS), THE SOLICITATION / RECOMMENDATION STATEMENT AND ALL OTHER FILINGS MADE BY THE COMPANY AND SALTCHUK WITH THE SEC IN CONNECTION WITH THE TENDER OFFER WHEN SUCH DOCUMENTS BECOME AVAILABLE, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION THAT SHOULD BE READ CAREFULLY BEFORE ANY DECISION IS MADE WITH RESPECT TO THE TENDER OFFER.

When filed, the Company’s stockholders and other investors can obtain the Tender Offer Statement, the Solicitation/Recommendation Statement and other filed documents free of charge at the SEC’s website at www.sec.gov. Copies of the documents filed with the SEC by the Company and Saltchuk will be available free of charge under “SEC Filings” on the Investors page of the Company’s website, www.osg.com. In addition, the Company’s stockholders may obtain free copies of the tender offer materials by contacting the information agent for the tender offer that will be named in the Offer to Purchase included in the Tender Offer Statement.

Exhibit Index

Exhibit No.	Description
99.1	Joint Press Release of Saltchuk Resources, Inc. and Overseas Shipholding Group, Inc., dated May 20, 2024.
99.2	CEO Email to All Employees, First used May 20,2024.

2