AMLX insider buying
1 cluster buyAmylyx Pharmaceuticals, Inc. · Healthcare
When two or more insiders at Amylyx Pharmaceuticals, Inc. buy AMLX on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in AMLX plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Sep 3 – Sep 12, 2024Detected Sep 12, 2024High conviction3 insidersTotal bought$427.7KMarket cap$2.0B
All notable open-market buys in AMLX
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Dec 23, 2025 | Director | 8,100 | $12.45 | $100.8K | SEC ↗ |
| Mar 20, 2025 | Director | 10,000 | $3.70 | $37.0K | SEC ↗ |
| Sep 12, 2024 | FRATES JAMES Mcluster Chief Financial Officer | 40,000 | $2.53 | $101.2K | SEC ↗ |
| Sep 5, 2024 | Firestone Karencluster Director | 50,000 | $2.13 | $106.5K | SEC ↗ |
| Sep 3, 2024 | MILNE GEORGE M JRcluster Director | 100,000 | $2.20 | $220.0K | SEC ↗ |
| May 15, 2024 | Director | 2,250 | $1.89 | $4.3K | SEC ↗ |
| May 14, 2024 | Director | 2,750 | $1.89 | $5.2K | SEC ↗ |
More Healthcare stocks with insider cluster buys
AMLX insider buying — FAQ
- Are insiders buying AMLX stock?
- Yes — 5 distinct insiders have bought AMLX (Amylyx Pharmaceuticals, Inc.) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Dec 23, 2025.
- How much AMLX stock have insiders bought?
- Insiders have bought a combined $575.0K of AMLX across 7 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in AMLX?
- A cluster buy is two or more distinct Amylyx Pharmaceuticals, Inc. insiders — officers, directors, or 10% owners — each buying AMLX on the open market within a rolling window. AMLX has 1 detected cluster buy to date.
- Where does this AMLX insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in AMLX
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy AMLX within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding AMLX.