SBLK: 6-K company filing

6-K 1 form6-k.htm REPORT OF FOREIGN PRIVATE ISSUER UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2026 Commission File Number: 001-33869 STAR BULK CARRIERS CORP. (Translation of registrant’s name into English) Star Bulk Carriers Corp. c/o Star Bulk Management Inc. 40 Agiou Konstantinou Street, 15124 Maroussi, Athens, Greece (Address of principal executive offices) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F ☒ Form 40-F ☐ INFORMATION CONTAINED IN THIS FORM 6-K REPORT Attached as Exhibit 99.1 to this Form 6-K is a copy of the press release of Star Bulk Carriers Corp. (the “Company”) relating to the results of the public offering in Greece of new common, registered, voting shares of the Company, par value $0.01 each (the “New Shares”) (“Press Release 1”), which was issued on September 15, 2026. Attached as Exhibit 99.2 to this Form 6-K is a copy of the press release of the Company announcing the commencement of trading of the New Shares (“Press Release 2”), which was issued on September 15, 2026. The information contained in Exhibits 99.1 and 99.2 of this Form 6-K is hereby incorporated by reference into the registrant’s Registration Statement on Form F-3 (File No. 333-286185) and Registration Statement on Form S-8 (File No. 333-176922), in each case, to the extent not superseded by information subsequently filed or furnished (to the extent we expressly state that we incorporate such furnished information by reference) by the Company under the Securities Act of 19