Assembly biosciences announces pricing of $175 million in equity financings

South san francisco, calif., aug. 08, 2025 (globe newswire) -- assembly biosciences, inc. (“assembly bio”) (nasdaq: asmb), a biotechnology company developing innovative therapeutics targeting serious viral diseases, today announced the pricing of an underwritten, registered offering (the “offering”) of an aggregate of 5,591,840 shares of common stock and pre-funded warrants to purchase up to 1,040,820 shares of common stock, together with accompanying class a and class b warrants to purchase up to an aggregate of 6,632,660 shares of common stock at a combined price per share of common stock and accompanying class a warrant and class b warrant of $19.60 and a combined price per pre-funded warrant and accompanying class a warrant and class b warrant of $19.599. each pre-funded warrant will have a nominal exercise price of $0.001 per share of common stock and will be immediately exercisable. each accompanying class a warrant will have an exercise price of $21.60 per share of common stock, will be immediately exercisable and will expire on the earlier of (i) five years from the date of issuance (august 11, 2030) and (ii) the date that is 30 days after the public announcement that assembly bio has completed enrollment (of at least 200 patients total) for its phase 2 clinical study evaluating abi-5366 vs. valacyclovir. each accompanying class b warrant will have an exercise price of $21.60 per share of common stock, will be exercisable on or after november 15, 2026 and will expire on december 31, 2026, provided that each class b warrant will automatically terminate in full and be extinguished and shall no longer be exercisable in the event that assembly bio publicly announces prior to november 15, 2026 that it has received at least $75.0 million in the aggregate of non-dilutive capital in connection with a collaboration agreement.
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