X0609 4 2026-08-25 0001828161 FTC Solar, Inc. FTCI 0002100820 Carroll Anthony false 10900 STONELAKE BLVD. SUITE 100 QUARRY OAKS II BUILDING AUSTIN TX 78759 true true false false Chief Executive Officer false Common Stock 2026-08-25 4 P false 24745 2.08 A 666200 D Represents a weighted average purchase price per share for these shares, which were purchased in multiple transactions at prices ranging from $2.020 to $2.120. The Reporting Person undertakes to provide to the Issuer, the staff of the Commission or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range. /s/ Cathy Behnen, as Attorney-in-Fact 2026-08-26