Amylyx Pharmaceuticals Announces Pricing of an Upsized $500 Million Underwritten Public Offering of Common Stock
CAMBRIDGE, Mass., August 20, 2026--Amylyx Pharmaceuticals, Inc. (Nasdaq: AMLX) ("Amylyx" or the "Company") today announced the pricing of an upsized underwritten public offering of 14,090,000 shares of its common stock at a public offering price of $35.50 per share. In addition, Amylyx has granted the underwriters a 30-day option to purchase up to an additional 2,113,500 shares of its common stock at the public offering price per share, less underwriting discounts and commissions. All of the shares of common stock are being offered by Amylyx. The gross proceeds to Amylyx from this offering are expected to be $500.2 million, before deducting underwriting discounts and commissions and offering expenses and excluding any exercise of the underwriters' option to purchase additional shares.
Amylyx intends to use the net proceeds from this offering, together with existing cash, cash equivalents and marketable securities, for:
Pre-commercial activities for avexitide, including securing additional manufacturing capacity;
Research and development; and
Working capital and other general corporate purposes.
The offering is expected to close on or about August 21, 2026, subject to the satisfaction of customary closing conditions.
Leerink Partners, Morgan Stanley, Guggenheim Securities and LifeSci Capital are acting as joint bookrunning managers for the offering.
The shares described above are being offered pursuant to a shelf registration statement on Form S-3ASR (File No. 333-293956) that became automatically effective upon filing with the Securities and Exchange Commission (the "SEC") on March 3, 2026. This offering is being made only by means of a prospectus supplement and an accompanying prospectus that form a part of the registration statement.
A preliminary prospectus supplement and accompanying prospectus relating to the offering were filed with the SEC on August 18, 2026, and are available on the SEC's website located at www.sec.gov. A final prospectus supplement containing additional information relating to the offering and accompanying prospectus will be filed with the SEC and will be available on the SEC's website at www.sec.gov. When available, copies of the final prospectus supplement and the accompanying prospectus relating to this offering may also be obtained by contacting: Leerink Partners LLC, Syndicate Department, 53 State Street, 40th Floor, Boston, MA 02109, or by telephone at (800) 808-7525 ext. 6105, or by email at [email protected]; Morgan Stanley & Co. LLC, Attention: Prospectus Department, 180 Varick Street, 2nd Floor, New York, NY 10014, or by email at [email protected]; Guggenheim Securities, LLC, Attention: Equity Syndicate Department, 330 Madison Avenue, 8th Floor, New York, NY 10017, telephone: (212) 518-9544, email: [email protected]; and LifeSci Capital LLC, Attention: LifeSci Capital LLC, 1700 Broadway, 40th Floor, New York, NY 10019, or by email at [email protected].