Rubico Inc. 提交 6-K 文件，附公司章程修正案及新闻稿

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 October 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 [ X ] Form 40-F [ ]

On October 28, 2026, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Attached hereto as Exhibit 1.1 is a copy of the Articles of Amendment to the Amended and Restated Articles of Incorporation of the Registrant, filed with the Registrar of Corporations of the Republic of the Marshall Islands on October 28, 2026.

Exhibit 1.1. Articles of Amendment to Amended and Restated Articles of Incorporation

Exhibit 99.1. Press release dated October 28, 2026

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.