Amylyx Pharmaceuticals, Inc. (AMLX) Institutional Ownership & Insider Trading
207 institutions reported holding Amylyx Pharmaceuticals, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 33 insider trades on Form 4 since 2025-10-01.
Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason
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- Market cap
- 3.0B
- P/E TTM
- —
- Dividend yield
- —
- 52-week
- —
- Next earnings
- 5 Nov, in 12 days
Institutions · all 13F filers
quarter to 30 Jun 2026 · filers in both quarters207 institutions held —% of the shares. Across filers that reported both quarters, shares held changed +0.2%.
Largest moves, shares (millions)
Institutional flow by quarter
net shares added or trimmed, millions · filers in both quarters| Quarter | Holders | Shares held, M | Change | Increased | New | Decreased | Closed |
|---|---|---|---|---|---|---|---|
| Jun 26 | 207 | 115 | +0.2% | 65 | 44 | 53 | 12 |
| Mar 26 | 171 | 115 | +1.2% | 57 | 20 | 49 | 34 |
| Dec 25 | 179 | 112 | +2.3% | 65 | 36 | 43 | 22 |
| Sep 25 | 165 | 112 | +36.9% | 40 | 51 | 47 | 17 |
| Jun 25 | 130 | 82 | +10.8% | 35 | 30 | 35 | 35 |
| Mar 25 | 134 | 74 | +49.5% | 46 | 30 | 28 | 15 |
| Dec 24 | 119 | 50 | +11.1% | 33 | 26 | 37 | 18 |
| Sep 24 | 109 | 43 | -2.2% | 32 | 21 | 33 | 28 |
Amylyx Pharmaceuticals, Inc. — questions
- Who owns Amylyx Pharmaceuticals, Inc. stock?
- 207 institutions reported Amylyx Pharmaceuticals, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: FMR LLC (15.0%), BlackRock, Inc. (7.9%), PERCEPTIVE ADVISORS LLC (7.5%).
- Are Amylyx Pharmaceuticals, Inc. insiders buying or selling?
- 33 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.
Every figure on this page comes from Amylyx Pharmaceuticals, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.
How these figures are read: methodology · EquiReason.