Insider Transaction Report for Amylyx Pharmaceuticals, Inc.

Karen Firestone, a director at Amylyx Pharmaceuticals, Inc. (AMLX), reported a series of transactions on August 31, 2026. She acquired 25,000 shares of Common Stock at $1.76 per share and another 25,000 shares at $5.05 per share. Concurrently, she exercised stock options to acquire 25,000 shares of Common Stock, with an exercise price of $1.76, and another 25,000 shares with an exercise price of $5.05. Following these transactions, her post-transaction share ownership is reported as 91,900 shares from the first acquisition and 116,900 shares from the second acquisition. The options exercised were fully vested.