X0609 4 2026-04-28 true 0001827401 BRIGHT MINDS BIOSCIENCES INC. DRUG 0001583977 Cormorant Asset Management, LP false 200 CLARENDON STREET 52ND FLOOR BOSTON MA 02116 true Former 10% Owner 0001599214 Chen Bihua false C/O CORMORANT ASSET MANAGEMENT, LP 200 CLARENDON STREET, 52ND FLOOR BOSTON MA 02116 true Former 10% Owner 0001618442 Cormorant Global Healthcare Master Fund, LP false 200 CLARENDON STREET 52ND FLOOR BOSTON MA 02116 true Former 10% Owner false Common Shares 2026-04-28 4 S 0 109331 89.5 D 950000 I See Footnotes Cormorant Asset Management, LP ("Cormorant") serves as the investment manager of Cormorant Global Healthcare Master Fund, LP (the "Master Fund"). Cormorant Global Healthcare GP, LLC ("GP LLC") serves as the general partner of the Master Fund. Bihua Chen serves as the managing member of Cormorant, GP LLC and the Master Fund. Each of the Reporting Persons disclaims beneficial ownership of the shares reported herein except to the extent of its or her pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that any of the Reporting Persons is the beneficial owner of any such shares for purposes of Section 16(a) of the Securities Exchange Act of 1934 or for any other purpose. /s/ CORMORANT ASSET MANAGEMENT, LP By: Cormorant Asset Management GP, LLC, its General Partner 2026-04-30 /s/ Bihua Chen 2026-04-30 /s/ CORMORANT GLOBAL HEALTHCARE MASTER FUND, LP By: Cormorant Global Healthcare GP, LLC, its General Partner 2026-04-30