Gilead Sciences, Inc. Acquires 471,698 Shares of Assembly Biosciences, Inc. Common Stock

On May 26, 2026, Gilead Sciences, Inc., a ten percent owner of Assembly Biosciences, Inc., acquired 471,698 shares of Assembly Biosciences, Inc. common stock. The transaction was executed at a price of $26.50 per share. Following this acquisition, Gilead Sciences, Inc. now holds a total of 4,977,089 shares of Assembly Biosciences, Inc. common stock. This transaction is classified as direct ownership and was reported on Form 4.