X0508 4 2023-11-14 0 0001593275 Hamilton Insurance Group, Ltd. HG 0001539563 BSOF Master Fund L.P. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001728530 BSOF Master Fund II L.P. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001728531 Blackstone Alternative Solutions L.L.C. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001728529 Blackstone Strategic Opportunity Associates L.L.C. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001464694 Blackstone Holdings I L.P. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001484870 Blackstone Holdings II L.P. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001464695 Blackstone Holdings I/II GP L.L.C. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001393818 Blackstone Inc. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001404071 Blackstone Group Management L.L.C. C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0001070844 SCHWARZMAN STEPHEN A C/O BLACKSTONE INC. 345 PARK AVENUE NEW YORK NY 10154 0 0 1 0 0 Class B Common Stock 2023-11-14 4 S 0 918789 14.0625 D 0 I See Footnotes Class B Common Stock 2023-11-14 4 S 0 53182 14.0625 D 0 I See Footnotes Class A Common Stock 2023-11-14 4 S 0 1378793 14.0625 D Class B Common Stock 1378793 9019337 I See Footnotes Class A Common Stock 2023-11-14 4 S 0 79808 14.0625 D Class B Common Stock 79808 522062 I See Footnotes This amount represents the $15.00 initial public offering price per share of Class B Common Stock of Hamilton Insurance Group, Ltd. (the "Issuer"), less the underwriting discount of $0.9375 per share. Reflects securities of the Issuer held directly by BSOF Master Fund L.P., a Cayman Islands exempted limited partnership ("BSOF"). Reflects securities of the Issuer held directly by BSOF Master Fund II L.P., a Cayman Islands exempted limited partnership ("BSOF II", and together with BSOF, the "BSOF Funds"). Blackstone Alternative Solutions L.L.C. ("BAS") is the investment manager of each of the BSOF Funds. Blackstone Holdings I L.P. ("Holdings I") is the sole member of BAS. Blackstone Strategic Opportunity Associates L.L.C. ("BSOA") is the general partner of each of the BSOF Funds. Blackstone Holdings II L.P. ("Holdings II") is the managing member of BSOA. Blackstone Holdings I/II GP L.L.C. is the general partner of each of Holdings I and Holdings II. Blackstone Inc. is the sole member of Blackstone Holdings I/II GP L.L.C. Blackstone Group Management L.L.C. is the sole holder of the Series II preferred stock of Blackstone Inc. Blackstone Group Management L.L.C. is wholly-owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman. (continued from footnote 4) Each such Reporting Person may be deemed to beneficially own the securities of the Issuer directly held by the BSOF Funds directly or indirectly controlled by it or him, but each (other than BSOF and BSOF II to the extent of their respective direct holdings) disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that any of the Reporting Persons (other than BSOF and BSOF II to the extent each directly holds securities of the Issuer) is the beneficial owner of such securities for purposes of Section 16 or any other purpose. Pursuant to the bye-laws of the Issuer, each Class A Common Share sold by the BSOF Funds converted automatically into one Class B Common Share upon transfer. Each remaining Class A Common Share held by the BSOF Funds will convert automatically into one Class B Common Share upon any transfer (except for transfers to a permitted transferee as defined in the bye-laws of the Issuer), whether or not for value. Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. BSOF MASTER FUND L.P., By: Blackstone Strategic Opportunity Associates L.L.C., its general partner, By: /s/ Jack Pitts, Name: Jack Pitts, Title: Authorized Person 2023-11-16 BSOF MASTER FUND II L.P., By: Blackstone Strategic Opportunity Associates L.L.C., its general partner, By: /s/ Jack Pitts, Name: Jack Pitts, Title: Authorized Person 2023-11-16 BLACKSTONE ALTERNATIVE SOLUTIONS L.L.C., By: /s/ Jack Pitts, Name: Jack Pitts, Title: Authorized Person 2023-11-16 BLACKSTONE STRATEGIC OPPORTUNITY ASSOCIATES L.L.C., By: /s/ Jack Pitts, Name: Jack Pitts, Title: Authorized Person 2023-11-16 BLACKSTONE HOLDINGS I L.P., By: Blackstone Holdings I/II GP L.L.C., its general partner, By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-11-16 BLACKSTONE HOLDINGS II L.P., By: Blackstone Holdings I/II GP L.L.C., its general partner, By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-11-16 BLACKSTONE HOLDINGS I/II GP L.L.C., By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-11-16 BLACKSTONE INC., By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-11-16 BLACKSTONE GROUP MANAGEMENT L.L.C., By: /s/ Tabea Hsi, Name: Tabea Hsi, Title: Senior Managing Director 2023-11-16 /s/ STEPHEN A. SCHWARZMAN 2023-11-16