Dyne Therapeutics entered into an Underwriting Agreement with Morgan Stanley & Jefferies, as representatives of the underwriters, for a public offering of 18,300,000 shares of common stock at $20.50 per share. Underwriters will purchase at $19.27 per share, and have a 30-day option to buy up to 2,745,000 additional shares. Net proceeds are expected to be about $352.1 million, or approximately $405.0 million if the option is fully exercised. Closing is expected on or about July 23, 2026, subject to customary conditions.

Agreement details:

  • Agreement type: Underwriting agreement for public common stock offering
  • Counterparty: Morgan Stanley & Jefferies, as representatives of the underwriters
  • Signed / Effective: Jul 21 2026 / same
  • Duration / Termination: Through expected closing on Jul 23 2026
  • Reason: Raise capital to extend cash runway and fund programs

Original SEC Filing:

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