X0508 4 2025-11-18 0 0001799191 Oncology Institute, Inc. TOI 0001718621 M33 Growth I L.P. 888 BOYLSTON STREET, SUITE 500 BOSTON MA 02199 1 0 0 0 0001894303 M33 Growth I GP LLC 888 BOYLSTON STREET, SUITE 500 BOSTON MA 02199 1 0 0 0 0001892968 TOI M, LLC 888 BOYLSTON STREET, SUITE 500 BOSTON MA 02199 1 0 0 0 0 Common Stock 2025-11-18 4 J 0 590892 D 0 I See Footnote Common Stock 2025-11-18 4 J 0 11818 A 7944207 D Common Stock 2025-11-18 4 J 0 2500000 D 5444207 D On November 18, 2025, TOI M, LLC made a distribution in-kind of 590,892 shares of the Issuer's common stock to its members, including 11,818 shares distributed to M33 Growth I L.P. ("M33 LP"). Also on November 18, 2025, M33 LP made a distribution-in-kind of 2,500,000 shares of the Issuer's common stock to its limited partners. These securities were held by TOI M, LLC. M33 Growth I GP LLC is the general partner of M33 LP and may be deemed to beneficially own the shares held by M33 LP but disclaims beneficial ownership of these shares except to the extent of its pecuniary interest therein. /s/ Gabriel Ling, Managing Member of M33 Growth I GP LLC, the general partner of M33 Growth I LP 2025-11-20 /s/ Gabriel Ling, Managing Member of M33 Growth I GP LLC 2025-11-20 /s/ Gabriel Ling, Managing Member of TOI M, LLC 2025-11-20