0001464521 2026-06-16 2026-06-16 false 0001464521 8-K 2026-06-16 Heartflow, Inc. DE 001-42790 26-0506743 135 Main Street, Suite 1000 San Francisco CA 94105 650 241-1221 false false false false Common Stock, $0.001 par value per share HTFL NASDAQ true false