Amylyx Pharmaceuticals, Inc. - AMLX
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Mar 26, 2026 | SCHEDULE 13G/A | The Vanguard Group | 0.0% | 0 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | TCG Crossover GP II, LLC | 5.7% | 6,243,812 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | TCG Crossover Fund II, L.P. | 5.7% | 6,243,812 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | Chen Yu | 5.7% | 6,243,812 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | Adage Capital Management, L.P. | 2.53% | 2,777,055 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | Robert Atchinson | 2.53% | 2,777,055 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | Phillip Gross | 2.53% | 2,777,055 | View |
| Feb 05, 2026 | SCHEDULE 13G/A | FMR LLC | 15.0% | 16,468,419 | View |
| Feb 05, 2026 | SCHEDULE 13G/A | Abigail P. Johnson | 15.0% | 16,468,419 | View |
| Jan 30, 2026 | SCHEDULE 13G | The Vanguard Group | 5.28% | 5,804,912 | View |
| Jan 21, 2026 | SCHEDULE 13G/A | BlackRock, Inc. | 7.1% | 7,783,648 | View |
| Nov 17, 2025 | SCHEDULE 13G | Commodore Capital LP | 5.1% | 5,650,000 | View |
| Nov 17, 2025 | SCHEDULE 13G | Commodore Capital Master LP | 5.1% | 5,650,000 | View |
| Nov 17, 2025 | SCHEDULE 13G | Robert Egen Atkinson | 5.1% | 5,650,000 | View |
| Nov 17, 2025 | SCHEDULE 13G | Michael Kramarz | 5.1% | 5,650,000 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | Point72 Asset Management, L.P. | 2.6% | 2,801,636 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | Point72 Capital Advisors, Inc. | 2.6% | 2,801,636 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | Steven A. Cohen | 2.6% | 2,801,636 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | Perceptive Advisors LLC | 8.2% | 8,952,365 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | Joseph Edelman | 8.2% | 8,952,365 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | Perceptive Life Sciences Master Fund, Ltd. | 8.2% | 8,952,365 | View |
| Nov 13, 2025 | SCHEDULE 13G/A | Adage Capital Management, L.P. | 6.39% | 6,816,828 | View |
| Nov 13, 2025 | SCHEDULE 13G/A | Robert Atchinson | 6.39% | 6,816,828 | View |
| Nov 13, 2025 | SCHEDULE 13G/A | Phillip Gross | 6.39% | 6,816,828 | View |
| Oct 30, 2025 | SCHEDULE 13G/A | The Vanguard Group | 4.94% | 5,273,750 | View |
| Oct 07, 2025 | SCHEDULE 13G | FMR LLC | 10.7% | 11,379,207 | View |
| Oct 07, 2025 | SCHEDULE 13G | Abigail P. Johnson | 10.7% | 11,379,207 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.