Who
Karen Firestone
Director
Company insider
Files Form 4 as: Director, Amylyx Pharmaceuticals.
In numbers
- Trades disclosed
- 20
- Buys
- 5
- Sells
- 0
- Bought
- $402K
- Sold
- $0
- Companies
- 1
- Companies where not an officer
- 1
- First trade
- 16 Mar 2023
- Last trade
- 31 Aug 2026
- Last filed
- 2 Sep 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 31 Aug 2026filed 2 Sep 2026 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Code M | $44K25,000 at $1.76 | filing |
| 31 Aug 2026filed 2 Sep 2026 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Code M | $126K25,000 at $5.05 | filing |
| 31 Aug 2026filed 2 Sep 2026 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code M | —25,000 at $0.00 | filing |
| 31 Aug 2026filed 2 Sep 2026 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code M | —25,000 at $0.00 | filing |
| 31 Aug 2026filed 2 Sep 2026 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code M | —25,000 at $0.00 | filing |
| 31 Aug 2026filed 2 Sep 2026 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code M | —25,000 at $0.00 | filing |
| 31 Aug 2026filed 2 Sep 2026 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Code M | $44K25,000 at $1.76 | filing |
| 31 Aug 2026filed 2 Sep 2026 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Code M | $126K25,000 at $5.05 | filing |
| 4 Jun 2026filed 8 Jun 2026 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code A | —24,372 at $0.00 | filing |
| 4 Jun 2026filed 8 Jun 2026 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code A | —24,372 at $0.00 | filing |
| 21 May 2026filed 26 May 2026 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Bought | $51K3,800 at $13.51 | filing |
| 21 May 2026filed 26 May 2026 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Bought | $51K3,800 at $13.51 | filing |
| 23 Dec 2025filed 23 Dec 2025 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Bought | $101K8,100 at $12.45 | filing |
| 5 Jun 2025filed 9 Jun 2025 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code A | —25,000 at $0.00 | filing |
| 5 Sep 2024filed 9 Sep 2024 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Bought | $107K50,000 at $2.13 | filing |
| 6 Jun 2024filed 7 Jun 2024 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code A | —25,000 at $0.00 | filing |
| 15 Dec 2023filed 19 Dec 2023 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Bought | $60K4,000 at $14.97 | filing |
| 8 Jun 2023filed 12 Jun 2023 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code A | —3,908 at $0.00 | filing |
| 16 Mar 2023filed 20 Mar 2023 | AMLX Amylyx Pharmaceuticalsoption or derivative · Biotechnology | SEC FORM 4 Code A | —27,403 at $0.00 | filing |
| 16 Mar 2023filed 20 Mar 2023 | AMLX Amylyx PharmaceuticalsBiotechnology | SEC FORM 4 Bought | $32K1,000 at $31.99 | filing |
News
Amylyx Pharmaceuticals (NASDAQ:AMLX) Price Target Raised to $39.00AMLX · dailypolitical.com · 18 Oct 2026Insider Selling: Amylyx Pharmaceuticals (NASDAQ:AMLX) Director Sells 30,000 Shares of StockAMLX · dailypolitical.com · 7 Oct 2026
0 headlines in the last 90 days name Karen Firestone; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.