X0609 4 2026-08-21 0 0001737287 Allogene Therapeutics, Inc. ALLO 0001362155 Douglas Earl Martin false 210 EAST GRAND AVE SOUTH SAN FRANCISCO CA 94080 0 1 0 0 SVP, General Counsel 0 Common Stock 2026-08-21 4 S 0 29697 2.12 D 488267 D Represents the number of shares sold by the reporting person to cover tax withholding obligations in connection with the vesting of restricted stock units. This sale is mandated by the Issuer's election under its equity incentive plan to require the satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the reporting person. Reflects forfeiture of 54,479 shares subject to performance RSUs granted to the Reporting Person on August 14, 2023. Includes 7,495 shares of the Issuer's common stock acquired by the reporting person on March 15, 2026 pursuant to an employee stock purchase program. /s/Earl Douglas 2026-08-25