X0306 4 2022-03-02 0001274494 FIRST SOLAR, INC. FSLR 0001234459 ANTOUN GEORGES C/O FIRST SOLAR INC. 350 WEST WASHINGTON STREET, SUITE 600 TEMPE AZ 85281-1244 1 Chief Commercial Officer Common Stock 2022-03-02 4 A 0 29562 0 A 29562 D Common Stock 2022-03-02 4 F 0 9496 69.51 D 20066 D Represents the acquisition of shares of common stock issued upon the vesting of the performance share units granted on July 18, 2019, which performance share unit awards were subject to vesting over an approximately three-year performance period contingent upon the achievement of certain performance objectives. Represents shares of common stock withheld by the Issuer to satisfy certain tax withholding obligations with the vesting of the performance share units. /s/ Jason E. Dymbort, attorney-in-fact 2022-03-04