Rubico Inc. provides 2026 shareholder meeting proxy materials

Rubico Inc. submitted a Form 6-K to provide investors with materials for its 2026 Annual Meeting of Shareholders.

Rhea-AI Filing Summary

Rubico Inc. submitted a Form 6-K to provide investors with materials for its 2026 Annual Meeting of Shareholders. The filing states that the proxy materials are included as Exhibit 99.1 and the related proxy card as Exhibit 99.2. These documents will guide shareholders on the items to be voted on and how to cast their votes at the 2026 meeting.

FAQ

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What does Rubico Inc. (RUBI) disclose in this December 2025 Form 6-K?

Rubico Inc. provides the proxy materials for its 2026 Annual Meeting of Shareholders as Exhibit 99.1 and the related proxy card as Exhibit 99.2.

What are the attached exhibits to Rubico Inc.'s Form 6-K?

The filing attaches proxy materials for the 2026 Annual Meeting of Shareholders as Exhibit 99.1 and a proxy card for the meeting as Exhibit 99.2.

What is the purpose of the 2026 proxy materials for Rubico Inc. (RUBI)?

The 2026 proxy materials are intended to inform shareholders about the agenda and proposals for the Annual Meeting and how they may vote.

Who signed Rubico Inc.'s Form 6-K for the 2026 Annual Meeting materials?

The Form 6-K was signed on behalf of Rubico Inc. by Kalliopi Ornithopoulou, serving as Chief Executive Officer.

When was Rubico Inc.'s Form 6-K related to the 2026 Annual Meeting dated?

The Form 6-K related to the 2026 Annual Meeting materials is dated December 29, 2025.

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Accepted by SEC EDGAR 12/29/2025 - 07:08 PM EST Learn about SEC filing dates

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 December 2025

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 2026 Annual 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 2026 Annual Meeting of Shareholders of the Corporation.

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.

	RUBICO INC.
	(Registrant)
	By:	/s/ Kalliopi Ornithopoulou
	Name:	Kalliopi Ornithopoulou
	Title:	Chief Executive Officer

Date: December 29, 2025