Dyne Therapeutics Announces Pricing of $325.5 Million Public Offering of Common Stock

WALTHAM, Mass., May 21, 2024 (GLOBE NEWSWIRE) -- Dyne Therapeutics, Inc. (Nasdaq: DYN), a clinical-stage muscle disease company focused on advancing innovative life-transforming therapeutics for people living with genetically driven diseases, today announced the pricing of an underwritten public offering of 10,500,000 shares of its common stock at a public offering price of $31.00 per share. The gross proceeds to Dyne from the offering, before deducting underwriting discounts and commissions and offering expenses payable by Dyne, are expected to be $325.5 million. All shares in the offering are being sold by Dyne. The offering is expected to close on or about May 24, 2024, subject to customary closing conditions. In addition, Dyne has granted the underwriters a 30-day option to purchase up to an additional 1,575,000 shares of its common stock at the public offering price, less the underwriting discounts and commissions.

Morgan Stanley, Jefferies, Stifel and Guggenheim Securities are acting as joint book-running managers for the offering. Oppenheimer & Co. and Raymond James are acting as co-managers for the offering.

The offering is being made pursuant to a shelf registration statement on Form S-3 that was previously filed with the Securities and Exchange Commission (“SEC”) on March 5, 2024 and became automatically effective upon filing. This offering is being made only by means of a prospectus supplement and accompanying prospectus that form a part of the registration statement. A preliminary prospectus supplement relating to and describing the terms of the offering has been filed with the SEC and may be obtained for free by visiting the SEC’s website at www.sec.gov. A final prospectus supplement relating to the offering will be filed with the SEC. When available, copies of the final prospectus supplement and the accompanying prospectus may also be obtained by contacting: Morgan Stanley & Co. LLC, Attention: Prospectus Department, 180 Varick Street, 2nd Floor, New York, NY 10014, or by email at [e-mail]; Jefferies LLC, Attention: Equity Syndicate Prospectus Department, 520 Madison Avenue, New York, NY 10022, by telephone at [phone], or by email at [e-mail]; Stifel, Nicolaus & Company, Incorporated, Attention: Prospectus Department, One Montgomery Street, Suite 3700, San Francisco, CA 94104, by telephone at [phone] or by email at [e-mail]; or Guggenheim Securities, LLC, Attention: Equity Syndicate Department, 330 Madison Avenue, 8th Floor, New York, NY 10017, by telephone at [phone], or by email at [e-mail].