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 June 2026
Commission File Number: 001-42684
RUBICO INC.
(Translation of registrant’s name into English)
20 Iouliou Kaisara Str
19002 Paiania
Athens, Greece
(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 ☐
Information Contained in this Form 6-K Report
Attached to this report on Form 6-K as Exhibit 99.1 are the proxy materials for the Special Meeting of Shareholders of Rubico Inc. (the “Corporation”).
Attached to this report on Form 6-K as Exhibit 99.2 is the proxy card for the Special Meeting of Shareholders of the Corporation.
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, thereunto duly authorized.
| RUBICO INC. (Registrant) | |||
| By: | /s/ Nikolaos Papastratis | ||
| Name: | Nikolaos Papastratis | ||
| Title: | Chief Financial Officer | ||
Date: June 23, 2026