X0407 4 2023-06-12 0 0001358762 REATA PHARMACEUTICALS INC RETA 0001616200 Patni Rajiv 5320 LEGACY DRIVE PLANO TX 75024 0 1 0 0 EVP, Chief R&D Officer 0 Class A common stock 2023-06-12 4 A 0 45000 0.00 A 45000 D Employee Stock Option (right-to-buy) 99.12 2023-06-12 4 A 0 90000 0.00 A 2033-06-12 Class A common stock 90000 90000 D The shares represent Restricted Stock Units, which vest as to 11,250 shares on June 12, 2024, with the remainder to vest in twelve equal quarterly installments thereafter, subject to continued service through each vesting date. The option, representing a right to purchase a total of 90,000 Class A shares, become exercisable as to 22,500 on June 12, 2024, with the remainder to vest in twelve equal quarterly installments thereafter, subject to continued service through each vesting date. /s/ Tracy Herson, attorney-in-fact 2023-06-14