X0306 4 2022-08-17 0 0001828161 FTC Solar, Inc. FTCI 0001921678 Morris Robert Phelps C/O FTC SOLAR, INC. 9020 N CAPITAL OF TEXAS HWY, STE I-260 AUSTIN TX 78759 0 1 0 0 Chief Financial Officer Common Stock 2022-08-17 4 A 0 10141 4.55 A 208921 D Common Stock 2022-08-19 4 S 0 3540 4.48 D 205381 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 his cash bonus earned for the second quarter of 2022. Represents a weighted average sales price per share for these shares, which were sold in multiple transactions at prices ranging from $4.45 to $4.52. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Commission or any security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range. The shares were sold in order to satisfy tax obligations payable upon the settlement of the restricted stock units previously granted to the Reporting Person in exchange for the Reporting Person's agreement with the Issuer to forego his cash bonus earned for the second quarter of 2022 /s/ Jacob D. Wolf, as Attorney-in-Fact 2022-08-19