X0306 4 2022-08-17 0 0001828161 FTC Solar, Inc. FTCI 0001859083 Behnen Cathy C/O FTC SOLAR, INC. 9020 N CAPITAL OF TEXAS HWY, SUITE I-260 AUSTIN TX 78759 0 1 0 0 CHIEF ACCOUNTING OFFICER Common Stock 2022-08-17 4 A 0 9215 4.55 A 129144 D Reflects a grant of restricted stock units, which vested in full upon grant, pursuant to the Issuer's 2021 Stock Incentive Plan made to the Reporting Person in exchange for the Reporting Person's agreement with the Issuer to forego her cash bonus earned for the second quarter of 2022. /s/ Jacob D. Wolf, as Attorney-in-Fact 2022-08-19