AMLX insiders were on both sides of the trade this year. Buys came to roughly $152,000 (one buyer), sales to $10.1 million (six sellers).
Biggest single buyer: Firestone Karen, Director, with roughly $101,000.
Zooming out by quarter: Last full quarter: net selling by insiders. Insiders bought in 3 of the last 7 full quarters. Big money check: 207 institutions held AMLX as of Q2 2026, and more funds bought than sold.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Oct 7, 2026 | MILNE GEORGE M JR | Director | Sell | 30,000 | $27.70 | $831K | SEC |
| Sep 14, 2026 | Bedrosian Camille L | Executive Officer | Sell | 7,947 | $32.21 | $256K | SEC |
| Sep 14, 2026 | Bedrosian Camille L | Executive Officer | Sell | 2,081 | $33.09 | $69K | SEC |
| Sep 14, 2026 | FRATES JAMES M | CFO | Sell | 9,768 | $32.27 | $315K | SEC |
| Sep 14, 2026 | FRATES JAMES M | CFO | Sell | 1,042 | $33.23 | $35K | SEC |
| Sep 14, 2026 | Mazzariello Gina | Executive Officer | Sell | 9,525 | $32.46 | $309K | SEC |
| Sep 14, 2026 | Mazzariello Gina | Executive Officer | Sell | 11 | $33.34 | $367 | SEC |
| Sep 14, 2026 | Cohen Joshua B | CEO | Sell | 919 | $33.15 | $30K | SEC |
| Sep 14, 2026 | Cohen Joshua B | CEO | Sell | 29,545 | $32.16 | $950K | SEC |
| Sep 14, 2026 | Klee Justin B. | CEO | Sell | 1,439 | $33.16 | $48K | SEC |
| Sep 14, 2026 | Klee Justin B. | CEO | Sell | 29,025 | $32.13 | $933K | SEC |
| Jul 13, 2026 | Mazzariello Gina | Executive Officer | Sell | 15,000 | $18.32 | $275K | SEC |
| Jul 13, 2026 | Mazzariello Gina | Executive Officer | Sell | 15,000 | $17.61 | $264K | SEC |
| May 26, 2026 | Firestone Karen | Director | Buy | 3,800 | $13.51 | $51K | SEC |
| Mar 4, 2026 | Klee Justin B. | CEO | Sell | 29,282 | $14.47 | $424K | SEC |
In the last 12 months Amylyx Pharmaceuticals, Inc. insiders made open-market purchases worth about $152,000 and sales worth about $10.1 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in AMLX was filed on 2026-10-07.
207 investment managers reported holding AMLX in SEC Form 13F filings for Q2 2026.
No congressional trades in AMLX were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).