Form 4: Amylyx Pharmaceuticals Director Reports Stock Transaction
Insider Transaction (Form 4)
Karen Firestone, a Director of Amylyx Pharmaceuticals, Inc., reported multiple transactions in common stock on August 31, 2026.
Summary
- Option exercise/conversion: acquired 25,000 Common Stock at $1.76 ($44,000) on August 31, 2026; holds 91,900 after (Direct).
- Option exercise/conversion: acquired 25,000 Common Stock at $5.05 ($126,250) on August 31, 2026; holds 116,900 after (Direct).
- Option exercise/conversion: disposed of 25,000 Stock Option (right to buy) on August 31, 2026 (Direct).
- Option exercise/conversion: disposed of 25,000 Stock Option (right to buy) on August 31, 2026 (Direct).
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as routine: the reported changes are grants, option exercises, tax withholding or similar administrative transactions, which carry limited directional signal.
Insider Transactions
Karen Firestone — Director
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-31 | Option exercise/conversion | Common Stock | 25,000 | $2 | $44.0K | 91,900 |
| 2026-08-31 | Option exercise/conversion | Common Stock | 25,000 | $5 | $126.3K | 116,900 |
| 2026-08-31 | Option exercise/conversion | Stock Option (right to buy) | 25,000 | — | — | 0 |
| 2026-08-31 | Option exercise/conversion | Stock Option (right to buy) | 25,000 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-31 | Option exercise/conversion (25,000 shares) |
| 2026-08-31 | Option exercise/conversion (25,000 shares) |
| 2026-08-31 | Option exercise/conversion (25,000 shares) |
| 2026-08-31 | Option exercise/conversion (25,000 shares) |
Keywords
insider transaction, Form 4, AMLX, Amylyx Pharmaceuticals, Inc., neutral, Karen Firestone
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