0001828161 2026-04-29 2026-04-29 0001828161 false 8-K 2026-04-29 FTC Solar, Inc. DE 001-40350 81-4816270 10900 Stonelake Blvd Suite 100 Quarry Oaks II Building Austin TX 78759 512 481-4271 false false false false Common Stock, $0.0001 par value FTCI NASDAQ true false