Form 6-K Robin Energy Ltd. For: Sep 15

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 OF

THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2026

Commission File Number: 001-42543

ROBIN ENERGY LTD.

(Translation of registrant’s name into English)

223 Christodoulou Chatzipavlou Street, Hawaii Royal Gardens, 3036 Limassol, Cyprus

(Address of principal executive office)

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 ☐

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INFORMATION CONTAINED IN THIS FORM 6-K REPORT

The information contained in this report on Form 6-K and Exhibit 99.1 attached hereto are hereby incorporated by reference into the Company’s registration statements on Form F-3 (File Nos. 333-286726 and 333-288459).

SIGNATURES

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, thereunto duly authorized.

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