X0609 4 2026-05-12 0002091349 First Tracks Biotherapeutics, Inc. TRAX 0001711462 Lizzul Paul F. false 10770 WATERIDGE CIRCLE, SUITE 210 SAN DIEGO CA 92121 false true false false Chief Medical Officer 0 Restricted Stock Unit 2026-05-12 4 A 0 26700 0 A Common Stock 26700 26700 D Employee Stock Option (right to buy) 17.81 2026-05-12 4 A 0 72300 0 A 2036-05-11 Common Stock 72300 72300 D Each restricted stock unit ("RSU") represents a contingent right to receive 1 share of the Issuer's Common Stock upon settlement for no consideration. The RSUs vests as to 25% of the total RSUs annually commencing on May 12, 2027 until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date. The stock option vests as to 25% of the total shares on May 12, 2027, and thereafter vests as to 1/48 of the total shares monthly until fully vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date. In addition to the options to purchase a total of 72,300 shares of common stock as set forth in Table II, the Reporting Person also holds additional options to purchase up to an aggregate of 507,310 shares of common stock, which options vest according to their terms. /s/ Ajim Tamboli, Attorney-in-Fact 2026-05-14