X0609 4 2026-09-28 0 0000065596 SIEBERT FINANCIAL CORP SIEB 0001813372 Gebbia John J false C/O SIEBERT FINANCIAL CORP. 653 COLLINS AVENUE MIAMI BEACH FL 33139 1 1 1 1 CEO Member of 10% owner group 0 Common Stock, $0.01 par value per share 0 D Common Stock, $0.01 par value per share 9794994 I See footnote Common Stock, $0.01 par value per share 17119963 I Control Group The Reporting Person does not directly own any shares of Issuer common stock. The Reporting Person and the Reporting Person's spouse, Gloria E. Gebbia, jointly own the John J & Gloria E Gebbia TTEESS UAD 12/8/94 ("Gebbia Living Trust"). The Reporting Person indirectly owns 9,794,994 shares of Issuer common stock owned by the Gebbia Living Trust. The Reporting Person is part of a control group consisting of family members of the Reporting Person. A limited liability company owned by various family members not in the control group gifted an aggregate of 69,360 shares of Issuer common stock to family members of the control group, resulting in a net increase of 69,360 shares of Issuer common stock to the control group. The Reporting Person disclaims beneficial ownership of such shares of Issuer common stock, except to the extent of the Reporting Person's pecuniary interest therein. /s/ John J. Gebbia 2026-09-30