SCHEDULE 13G 0000011544 XXXXXXXX LIVE Class A Ordinary Shares, par value $0.0001 per share 09/30/2025 0001970509 HAYMAKER ACQUISITION CORP. 4 G4375F108 501 MADISON AVENUE, FLOOR 5 New York NY 10022 Rule 13d-1(b) W. R. Berkley Corporation DE 0 1680012 0 1680012 1680012 N 7.2 CO Berkley Insurance Company DE 0 1680012 0 1680012 1680012 N 7.2 IC CO HAYMAKER ACQUISITION CORP. 4 501 MADISON AVENUE, FLOOR 5, New York, New York 10022 W. R. Berkley Corporation 475 Steamboat Road, Greenwich, CT 06830 US N IC HC 1,680,012 7.2% 0 1,680,012 0 1,680,012 Y Y N See Exhibit 99.1 Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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. W. R. Berkley Corporation /s/ Richard M. Baio 11/07/2025 Berkley Insurance Company /s/ Richard M. Baio 11/07/2025