X0306 4 2021-04-30 0 0001828161 FTC Solar, Inc. FTCI 0001684056 Springer David C/O FTC SOLAR, INC. 9020 N CAPITAL OF TEXAS HWY, SUITE I-260 AUSTIN TX 78759 1 0 1 0 Common Stock 2021-04-30 4 J 0 473046 12.155 D 7713375 D Common Stock 2474001 I By Trust Common Stock 329867 I By Trust Common Stock 247400 I By Trust Common Stock 247400 I By Trust Common Stock 32987 I By Trust On April 30, 2021 the Issuer used a portion of the net proceeds from the closing of its initial public offering ("IPO") of Common Stock to purchase Common Stock from certain of the Issuer's pre-IPO equityholders, including the Reporting Person. These shares are owned directly by the DS 2021 GRAT for the benefit of the Reporting Person. The Reporting Person (a) is the sole trustee, (b) has sole voting and dispositive power with respect to the shares held by the trust and (c) has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the DS 2021 GRAT. 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. These shares are owned directly by the KC 2021 Trust for the benefit of the Reporting Person's fiancee. The Reporting Person has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the KC 2021 Trust. 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. These shares are owned directly by the JT 2021 Trust. The Reporting Person has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the JT 2021 Trust. 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. These shares are owned directly by the SF 2021 Trust. The Reporting Person has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the SF 2021 Trust. 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. These shares are owned directly by the KNS 2021 Trust for the benefit of the Reporting Person's sister. The Reporting Person has sole power to acquire for himself any asset held in the trust, including the shares, by substituting other property of equivalent value of the KNS 2021 Trust. 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 2021-05-04