SCHEDULE 13G 0002090655 XXXXXXXX LIVE 13G 08/25/2025 0001610820 BriaCell Therapeutics Corp. 10778Y104 Suite 300 1281 West Georgia Street VANCOUVER A1 V6E 3J7 Rule 13d-1(c) Plambeck Jeremy Myung Jae b KS 4329.72 0.00 4329.72 0.00 13338.61 100.0 IN Includes (i) 4,329.72 common shares, (ii) 2,695.6 common shares issuable upon exercise of 26,956 currently exercisable warrants (10:1 exercise ratio), and (iii) 6,313.29 common shares issuable upon conversion of 63,132.88 currently exercisable rights (10:1 conversion ratio). BriaCell Therapeutics Corp. Suite 300 1281 West Georgia Street, VANCOUVER, BRITISH COLUMBIA, CANADA, V6E 3J7 Jeremy Myung Jae Plambeck 3448 Treesmill Dr. Manhattan, KS 66503 United States United States Y BCTX common shares = 4,329.719 BCTXW warrants (10for 1) = 29,956 warrants divided by 10 = 2,995.6 common shares BCTXZ rights (10 for 1) = 63,132.88 right divided by 10 = 6,313.29 common shares Total aggregate beneficial ownership: 4,329.72+2,995.6+6,313.29 = 13,638.61 common shares However, after emailing BriaCell Investor relations and Fidelity Investors and ComputerShare US and ComputerShare Canada, changes to warrants BCTXZ were not updates until September 5 for 10 to 1 conversion for 1 common share and for BCTXW 10 to 1 until September 11, 2025. 100% BCTX common shares = 4,329.719 BCTXW warrants (10for 1) = 29,956 warrants divided by 10 = 2,995.6 common shares BCTXZ rights (10 for 1) = 63,132.88 right divided by 10 = 6,313.29 common shares Total aggregate beneficial ownership: 4,329.72+2,995.6+6,313.29 = 13,638.61 common shares However, after emailing BriaCell Investor relations and Fidelity Investors and ComputerShare US and ComputerShare Canada, changes to warrants BCTXZ were not updates until September 5 for 10 to 1 conversion for 1 common share and for BCTXW 10 to 1 until September 11, 2025. BCTX common shares = 4,329.719 BCTXW warrants (10for 1) = 29,956 warrants divided by 10 = 2,995.6 common shares BCTXZ rights (10 for 1) = 63,132.88 right divided by 10 = 6,313.29 common shares Total aggregate beneficial ownership: 4,329.72+2,995.6+6,313.29 = 13,638.61 common shares However, after emailing BriaCell Investor relations and Fidelity Investors and ComputerShare US and ComputerShare Canada, changes to warrants BCTXZ were not updates until September 5 for 10 to 1 conversion for 1 common share and for BCTXW 10 to 1 until September 11, 2025. BCTX common shares = 4,329.719 BCTXW warrants (10for 1) = 29,956 warrants divided by 10 = 2,995.6 common shares BCTXZ rights (10 for 1) = 63,132.88 right divided by 10 = 6,313.29 common shares Total aggregate beneficial ownership: 4,329.72+2,995.6+6,313.29 = 13,638.61 common shares However, after emailing BriaCell Investor relations and Fidelity Investors and ComputerShare US and ComputerShare Canada, changes to warrants BCTXZ were not updates until September 5 for 10 to 1 conversion for 1 common share and for BCTXW 10 to 1 until September 11, 2025. BCTX common shares = 4,329.719 BCTXW warrants (10for 1) = 29,956 warrants divided by 10 = 2,995.6 common shares BCTXZ rights (10 for 1) = 63,132.88 right divided by 10 = 6,313.29 common shares Total aggregate beneficial ownership: 4,329.72+2,995.6+6,313.29 = 13,638.61 common shares However, after emailing BriaCell Investor relations and Fidelity Investors and ComputerShare US and ComputerShare Canada, changes to warrants BCTXZ were not updates until September 5 for 10 to 1 conversion for 1 common share and for BCTXW 10 to 1 until September 11, 2025. Y N Y Y Y Y N 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. Plambeck Jeremy Myung Jae Jeremy Myung Jae Plambeck 10/10/2025