BRISBANE, Calif., Nov. 12, 2025 (GLOBE NEWSWIRE) -- Annexon, Inc. ("Annexon") (NASDAQ:ANNX), a biopharmaceutical company advancing a late-stage clinical platform targeting neuroinflammation across life-changing complement-mediated diseases of the body, brain, and eye, today announced the pricing of its previously announced underwritten public offering of 25,096,153 shares of its common stock at a price to the public of $2.60 per share and, in lieu of shares of common stock to certain investors, pre-funded warrants to purchase 3,750,000 shares of common stock at a purchase price of $2.599 per share, which equals the public offering price per share of the common stock less the $0.001 exercise price per share of each pre-funded warrant.

The gross proceeds to Annexon from the offering are expected to be $75 million, before deducting underwriting discounts and commissions and other offering expenses payable by Annexon. The offering is expected to close on November 14, 2025, subject to the satisfaction of customary closing conditions. In addition, Annexon has granted the underwriters a 30-day option to purchase up to an additional 4,326,922 shares of common stock.

Goldman Sachs & Co. LLC, TD Cowen and Wells Fargo Securities are acting as joint book-running managers for the offering.

The shares of common stock and pre-funded warrants are being offered by Annexon pursuant to a shelf registration statement on Form S-3, including a base prospectus, that was filed with the Securities and Exchange Commission (the "SEC") on March 26, 2024 and subsequently declared effective by the SEC on April 1, 2024. The offering is being made only by means of a prospectus supplement and the accompanying prospectus ...