X0202 SCHEDULE 13G/A 1376474-26-000189 0002111558 XXXXXXXX LIVE 1 Common Shares 02/25/2026 0001985062 PSYENCE BIOMEDICAL LTD. 74449F308 121 RICHMOND STREET WEST PENTHOUSE SUITE 1300 TORONTO A6 CANADA Rule 13d-1(c) Weiner Jeffrey David X1 59750 0 59750 0 59750 2.61 IN PSYENCE BIOMEDICAL LTD. 121 RICHMOND STREET WEST PENTHOUSE, SUITE 1300, TORONTO, ONTARIO, CANADA Weiner Jeffrey David 1856 E Hamlin Street, Seattle, WA 98112 United States Y 59,750 2.61 - This percentage is based on 2,293,307 total outstanding shares reported by the company. 59,750 0 59,750 0 Y Y Y Y Y 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. Weiner Jeffrey David Weiner Jeffrey David 06/09/2026