Form 4 for AMLX Amylyx Pharmaceuticals, Inc.
Accepted 2026-09-02 16:00:27 ET · period of report 2026-08-31 · accession 0001193125-26-380152 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-09-02 16:00 | 2026-08-31 | AMLX | Firestone Karen | Dir | M - OptEx | $3.40 | +50.0K | 116.9K | +75% | +$170.2K |
| DM | 2026-09-02 16:00 | 2026-08-31 | AMLX | Firestone Karen | Dir | M - OptEx | $0.00 | -50.0K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-08-31 | M | A | 25,000 | $1.76 | 91,900 | D | — | — | |
| 2 | Common | Common Stock | 2026-08-31 | M | A | 25,000 | $5.05 | 116,900 | D | — | — | |
| 3 | Derivative | Stock Option (right to buy) | 2026-08-31 | M | D | 25,000 | $0.00 | 0 | D | $1.76 · — to 2034-06-05 | 25,000 Common Stock | (F1) This option is fully vested and exercisable. |
| 4 | Derivative | Stock Option (right to buy) | 2026-08-31 | M | D | 25,000 | $0.00 | 0 | D | $5.05 · — to 2035-06-04 | 25,000 Common Stock | (F1) This option is fully vested and exercisable. |