X0407 4 2023-07-05 0 0001828161 FTC Solar, Inc. FTCI 0001223528 PRIDDY WILLIAM A C/O FTC SOLAR, INC. 9020 N CAPITAL OF TEXAS HWY, SUITE I-260 AUSTIN TX 78759 1 0 0 0 0 Common Stock 2023-07-05 4 A 0 62500 0.00 A 340032 D Common Stock 769 I By Daughter Reflects a grant of restricted stock units pursuant to the Issuer's 2021 Stock Incentive Plan in consideration of the Reporting Person's service on the board of directors (BOD) of the Issuer, and is subject to vesting the one year anniversary of grant, subject to continued service on the BOD. The shares are held for the daughter of the Reporting Person, through a custodial account established pursuant to the United Transfers to Minors Act for which the Reporting Person serves as custodian. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that he is the beneficial owner of such securities for Section 16 or any other purpose. /s/ Jacob D. Wolf, as Attorney-in-Fact 2023-07-06