Companies / Amylyx Pharmaceuticals, Inc. / Activity
Activity — Amylyx Pharmaceuticals, Inc.
71 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q2 2026 as of | Deutsche Bank AG 13F manager | Trim | Common stock | $-13.92M | -775K -58.15% | 557,937 0.50% of shares | medium |
| Q4 2025 as of | Bank of America Corp /De 13F manager | Add | Common stock | $10.95M | +906K +211.05% | 1,336,010 1.20% of shares | medium |
| Q1 2026 as of | Adage Capital Partners Gp, L.L.C. 13F manager | Add | Common stock | $10.89M | +784K +28.22% | 3,560,764 3.20% of shares | medium |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $9.58M | +533K +25.77% | 2,603,337 2.34% of shares | medium |
| Q1 2026 as of | Jupiter Asset Management Ltd 13F manager | Add | Common stock | $8.02M | +577K +3705.41% | 592,654 0.53% of shares | medium |
| Q1 2026 as of | Janus Henderson Group PLC 13F manager | Add | Common stock | $7.23M | +520K +11.65% | 4,986,073 4.47% of shares | medium |
| Q3 2025 as of | Boxer Capital Management, LLC 13F manager | Trim | Common stock | $-4.42M | -325K -26.53% | 900,000 0.81% of shares | low |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Trim | Common stock | $-4.08M | -227K -2.51% | 8,827,085 7.92% of shares | low |
| Q3 2025 as of | Barclays PLC 13F manager | Add | Common stock | $3.86M | +284K +217.88% | 414,112 0.37% of shares | low |
| Q1 2026 as of | Balyasny Asset Management L.P. 13F manager | Add | Common stock | $3.46M | +249K +28.95% | 1,107,271 0.99% of shares | low |
| Q2 2025 as of | Boxer Capital Management, LLC 13F manager | Trim | Common stock | $-3.37M | -525K -30.00% | 1,225,000 1.10% of shares | low |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Trim | Common stock | $-2.54M | -182K -52.98% | 161,945 0.15% of shares | low |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | Exit | Common stock | $-2.33M | -193K -100.00% | 0 | low |
| Q1 2026 as of | HighVista Strategies LLC 13F manager | Add | Common stock | $1.57M | +113K +47.43% | 352,085 0.32% of shares | low |
| Q4 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-1.44M | -119K -28.72% | 295,177 0.26% of shares | low |
| Q1 2026 as of | Federated Hermes Inc 13F manager | Trim | Common stock | $-1.30M | -94K -20.52% | 363,546 0.33% of shares | low |
| Q1 2023 as of | Barclays PLC 13F manager | Add | Common stock | $1.27M | +43K +112.77% | 81,906 0.07% of shares | low |
| Q4 2025 as of | Boxer Capital Management, LLC 13F manager | Trim | Common stock | $-1.21M | -100K -11.11% | 800,000 0.72% of shares | low |
| Q4 2023 as of | Barclays PLC 13F manager | Add | Common stock | $959.5K | +65K +253.63% | 90,879 0.08% of shares | low |
| Q3 2023 as of | Barclays PLC 13F manager | Trim | Common stock | $-957.3K | -52K -67.05% | 25,699 0.02% of shares | low |
| Q1 2026 as of | Geode Capital Management, LLC 13F manager | Add | Common stock | $631.1K | +45K +2.10% | 2,210,932 1.98% of shares | low |
| Q1 2026 as of | Millennium Management LLC 13F manager | Exit | Common stock | $-561.2K | -46K -100.00% | 0 | low |
| Q1 2026 as of | Mariner, LLC 13F manager | Exit | Common stock | $-559.9K | -46K -100.00% | 0 | low |
| Q1 2026 as of | Bank of New York Mellon Corp/The 13F manager | Add | Common stock | $469.2K | +34K +15.53% | 251,104 0.23% of shares | low |
| Q2 2026 as of | Persistent Asset Partners Ltd 13F manager | Exit | Common stock | $-376.3K | -31K -100.00% | 0 | low |
| Q1 2026 as of | Campbell & CO Investment Adviser LLC 13F manager | Trim | Common stock | $-338.3K | -24K -30.90% | 54,422 0.05% of shares | low |
| Q1 2025 as of | Barclays PLC 13F manager | Add | Common stock | $221.5K | +63K +83.59% | 137,405 0.12% of shares | low |
| Q1 2026 as of | Rafferty Asset Management, LLC 13F manager | Exit | Common stock | $-213.5K | -18K -100.00% | 0 | low |
| Q1 2026 as of | Prudential Financial Inc 13F manager | New | Common stock | $196.3K | +14K | 14,120 0.01% of shares | low |
| Q1 2026 as of | California State Teachers Retirement System 13F manager | Trim | Common stock | $-195.8K | -14K -17.81% | 65,002 0.06% of shares | low |
| Q2 2026 as of | Quadrature Capital Ltd 13F manager | Exit | Common stock | $-186.8K | -15K -100.00% | 0 | low |
| Q1 2026 as of | Amundi 13F manager | New | Common stock | $179.2K | +13K | 12,895 0.01% of shares | low |
| Q1 2026 as of | Great Lakes Advisors, LLC 13F manager | New | Common stock | $144.3K | +10K | 10,380 <0.01% of shares | low |
| Q3 2024 as of | Barclays PLC 13F manager | Add | Common stock | $130.6K | +40K +91.11% | 84,572 0.08% of shares | low |
| Q1 2026 as of | Rhumbline Advisers 13F manager | Add | Common stock | $127.8K | +9K +9.26% | 108,467 0.10% of shares | low |
| Q1 2026 as of | MAI Capital Management 13F manager | New | Common stock | $125.3K | +9K | 9,014 <0.01% of shares | low |
| Q2 2024 as of | Barclays PLC 13F manager | Trim | Common stock | $-118.9K | -63K -58.58% | 44,253 0.04% of shares | low |
| Q1 2026 as of | AllianceBernstein L.P. 13F manager | Add | Common stock | $112.3K | +9K +13.01% | 80,800 0.07% of shares | low |
| Q4 2025 as of | Persistent Asset Partners Ltd 13F manager | Add | Common stock | $99.5K | +8K +35.94% | 31,147 0.03% of shares | low |
| Q1 2026 as of | Intech Investment Management LLC 13F manager | Trim | Common stock | $-98.5K | -7K -22.14% | 24,921 0.02% of shares | low |
| Q2 2026 as of | AlphaQuest LLC 13F manager | Exit | Common stock | $-86.9K | -7K -100.00% | 0 | low |
| Q2 2023 as of | Barclays PLC 13F manager | Trim | Common stock | $-84.6K | -4K -4.79% | 77,984 0.07% of shares | low |
| Q1 2026 as of | Zurcher Kantonalbank (Zurich Cantonalbank) 13F manager | Add | Common stock | $68.3K | +5K +13.69% | 40,790 0.04% of shares | low |
| Q1 2026 as of | BNP Paribas Financial Markets 13F manager | Trim | Common stock | $-56.4K | -4K -16.11% | 21,140 0.02% of shares | low |
| Q2 2026 as of | Arizona State Retirement System 13F manager | Trim | Common stock | $-55.5K | -3K -13.48% | 19,825 0.02% of shares | low |
| Q1 2026 as of | Profund Advisors LLC 13F manager | Trim | Common stock | $-47.8K | -3K -16.69% | 17,152 0.02% of shares | low |
| Q2 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-45.7K | -7K -5.19% | 130,274 0.12% of shares | low |
| Q1 2024 as of | Barclays PLC 13F manager | Add | Common stock | $45.3K | +16K +17.57% | 106,842 0.10% of shares | low |
| Q1 2026 as of | Royal Bank of Canada 13F manager | Trim | Common stock | $-45.3K | -3K -20.84% | 12,383 0.01% of shares | low |
| Q1 2026 as of | ProShare Advisors LLC 13F manager | Trim | Common stock | $-40.5K | -3K -13.83% | 18,154 0.02% of shares | low |