Karen Firestone serves as Executive at Amylyx Pharmaceuticals, Inc., where they oversee executive responsibilities. Since joining the company, Karen Firestone has executed 4 insider transactions totaling $299.2K, demonstrating a bullish approach to their equity position. Their most recent transaction on Dec 23, 2025 involved purchasing 8,100 shares valued at $100.8K.
Karen Firestone currently holds 63,100 shares of Amylyx Pharmaceuticals, Inc. (AMLX), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Karen Firestone has been a net buyer of AMLX stock. They have purchased $299.2K and sold $0 worth of shares.
Karen Firestone's most recent insider trade was on Dec 23, 2025, when they purchased 8,100 shares at $12.45 per share.
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| $2.13 |
| Discretionary |
| Dec 15, 2023 | AMLX | $59.9K | Purchase | 4,000 | $14.97 | Discretionary |
| Mar 16, 2023 | AMLX | $32.0K | Purchase | 1,000 | $31.99 | Discretionary |