SCHEDULE 13G 0001702202 XXXXXXXX LIVE Common Stock, par value $0.01 per share 11/06/2025 0001943421 Rubico Inc. Y1250N107 20 Iouliou Kaisara Str 19002 Paiania Athens J3 00000 Rule 13d-1(c) L1 Capital Global Opportunities Master Fund, Ltd. E9 1761160.00 0.00 1761160.00 0.00 1761160.00 N 9.99 FI Rubico Inc. 20 Iouliou Kaisara Str, 19002 Paiania, Athens, Greece L1 Capital Global Opportunities Master Fund, Ltd. 161A Shedden Road, 1 Artillery Court, PO Box 10085 Grand Cayman, Cayman Islands KY1-1001 Cayman Islands Y 1,761,160 The amounts in Row (5), (7) and (9) include 951,860 shares of Common Stock and 809,300 Warrants to purchase shares of Common Stock. The amounts do not include 142,560 Warrants to purchase shares of Common Stock, which are subject to a 9.99% beneficial ownership limitation The percentage set forth on Row (11) of the cover page for the reporting person is based on 17,612,636 shares of Common Stock outstanding as of November 6, 2025, based on the Issuer's Report of Foreign Private Issuer on Form 6-K filed with the Securities and Exchange Commission on November 7, 2025. David Feldman and Joel Arber are the Directors of L1 Capital Global Opportunities Master Fund, Ltd. As such, L1 Capital Global Opportunities Master Fund, Ltd., Mr. Feldman, and Mr. Arber may be deemed to beneficially own (as that term is defined in Rule 13d-3 under the Securities Exchange Act of 1934) the issuer's securities described herein. To the extent Mr. Feldman and Mr. Arber are deemed to beneficially own such securities, Mr. Feldman and Mr. Arber disclaim beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 13 and the rules thereunder. 9.99% 1,761,160 0 1,761,160 0 Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. L1 Capital Global Opportunities Master Fund, Ltd. /s/ David Feldman 11/13/2025