Dyne Therapeutics, Inc.

shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liab

, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, n

Financial Statements and Exhibits. (d) Exhibits Exhibit No. Description 99.1 Presentation, dated January 12, 2026 104 Cover Page Interactive Data File (embedded