CIK 0001658551 · Non-accelerated filer<br>Smaller reporting company
Amylyx Pharmaceuticals, Inc.
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- AMLX
- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 464600503
- Phone
- 617-682-0917
- Business address
- 55 CAMBRIDGE PARKWAY, SUITE 6W, CAMBRIDGE, MA, 02142
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $10,951,125
- in 9 filings, $8.0M under 10b5-1 plans
Net −$10,951,125. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
- Cohen Joshua B −$4.0M Co-Chief Executive Officer sold 4% of stake
- Klee Justin B. −$4.0M Co-Chief Executive Officer sold 4% of stake
- FRATES JAMES M −$1.6M Chief Financial Officer sold 18% of stake
- MILNE GEORGE M JR −$831K Director sold 4% of stake
- Bedrosian Camille L −$325K Chief Medical Officer sold 3% of stake
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-05-21 | Firestone Karen Director | Purchase | +3,800 | $13.51 | $51K | 66,900 |
| 2025-12-23 | Firestone Karen Director | Purchase | +8,100 | $12.45 | $101K | 63,100 |
| 2025-03-20 | Zeiher Bernhardt G Director | Purchase | +10,000 | $3.70 | $37K | 10,000 |
| 2024-09-12 | FRATES JAMES M Chief Financial Officer | Purchase | +40,000 | $2.53 | $101K | 233,464 |
| 2024-09-05 | Firestone Karen Director | Purchase | +50,000 | $2.13 | $107K | 55,000 |
| 2024-09-03 | MILNE GEORGE M JR Director | Purchase | +100,000 | $2.20 | $220K | 858,571 |
| 2024-05-15 | Quimi Daphne Director | Purchase | +2,250 | $1.89 | $4K | 5,000 |
| 2024-05-14 | Quimi Daphne Director | Purchase | +2,750 | $1.89 | $5K | 2,750 |
| 2023-12-15 | Firestone Karen Director | Purchase | +4,000 | $14.97 | $60K | 5,000 |
| 2023-03-16 | Firestone Karen Director | Purchase | +1,000 | $31.99 | $32K | 1,000 |
| 2022-01-11 | Morningside Venture Investments Ltd 10% owner | Purchase | +263,158 | $19.00 | $5.0M | 10,678,808 |
| 2022-01-11 | Morningside Venture Investments Ltd 10% owner | Purchase | +263,158 | $19.00 | $5.0M | 10,678,808 |
| 2022-01-11 | VIKING GLOBAL INVESTORS LP 10% owner | Purchase | +2,300,000 | $19.00 | $43.7M | 2,300,000 |
| 2022-01-06 | FONTEYNE PAUL R. Director | Purchase | +3,947 | $19.00 | $75K | 3,947 |
| 2022-01-06 | Cheng Isaac Director | Purchase | +6,578 | $19.00 | $125K | 6,578 |
| 2022-01-06 | MILNE GEORGE M JR Director | Purchase | +26,315 | $19.00 | $500K | 221,396 |
| 2022-01-06 | Olinger Margaret Chief Commercial Officer | Purchase | +6,842 | $19.00 | $130K | 216,758 |
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