0001818794 2026-07-21 2026-07-21 false 0001818794 8-K 2026-07-21 Dyne Therapeutics, Inc. DE 001-39509 36-4883909 1560 Trapelo Road Waltham MA 02451 (781) 786-8230 false false false false Common stock, $0.0001 par value per share DYN NASDAQ false