Amylyx PharmaceuticalsAMLX
13F holders, Q3 2024 (September 30)110holders −9
22new positions
31sold out
6famous investors
$3.24avg. 13F price*
At the end of Q3 2024, 110 institutions reported holding Amylyx Pharmaceuticals Inc. (AMLX) in their 13F filings, down 9 from Q2 2024. 22 opened new positions and 31 sold out. The largest holders were TCG Crossover Management, LLC ($15.0M), Vanguard Group Inc. ($10.0M) and BlackRock, Inc. ($8.3M). 6 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Amylyx Pharmaceuticals Inc.
- CUSIP
- 03237H101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 22 | $31.7M |
| Exits | 31 | $7.8M |
All 13F filers, Q2 2024 → Q3 2024: 15,990,210 shares bought and 16,053,356 shares sold, net −63,146 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 110 holders
| TCG Crossover Management, LLC | 1.27% | New | 4,643,812 | $15.0M |
| Vanguard Group Inc. | 0.00% | Reduce -26.9% | 3,089,645 | $10.0M |
| BlackRock, Inc. | 0.00% | — | 2,548,206 | $8.3M |
| Perceptive Advisors LLC | 0.15% | New | 2,125,649 | $6.9M |
| Alyeska Investment Group, L.P. | 0.03% | Add +11.0% | 2,023,420 | $6.6M |
| 683 Capital Management, LLC | 0.74% | Add +33.2% | 2,000,000 | $6.5M |
| Almitas Capital LLC | 2.29% | Add +4.5% | 1,988,563 | $6.4M |
| Aberdeen Group plc | 0.01% | Add +1567.9% | 1,972,242 | $6.4M |
| Citadel Advisors | 0.01% | Add +41.3% | 1,899,560 | $6.2M |
| Acadian Asset Management LLC | 0.02% | Add +46.1% | 1,770,197 | $5.7M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -38.2% | 1,613,863 | $5.2M |
| Nantahala Capital Management, LLC | 0.38% | New | 1,404,564 | $4.6M |
| Farallon Capital Management, L.L.C. | 0.02% | No change | 1,150,221 | $3.7M |
| Bank of America Corp. | 0.00% | Add +91.1% | 912,515 | $3.0M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +41.6% | 880,745 | $2.9M |
| D. E. Shaw & Co. | 0.00% | Reduce -47.2% | 691,066 | $2.2M |
| Walleye Capital LLC | 0.03% | Add +986.5% | 670,594 | $2.2M |
| Alpha Wave Global, LP | 0.67% | New | 669,487 | $2.2M |
| AQR Capital Management | 0.00% | Reduce -80.6% | 649,079 | $2.1M |
| Citigroup Inc. | 0.00% | Reduce -13.3% | 575,005 | $1.9M |
| Deutsche Bank AG | 0.00% | No change | 570,857 | $1.8M |
| Geode Capital Management, LLC | 0.00% | Add +17.5% | 551,039 | $1.8M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Reduce -18.8% | 478,440 | $1.6M |
| Morgan Stanley | 0.00% | Reduce -48.3% | 478,265 | $1.5M |
| Millennium Management | 0.00% | Reduce -70.2% | 456,816 | $1.5M |
| Susquehanna International Group, LLP | 0.00% | Reduce -8.9% | 406,157 | $1.3M |
| Two Sigma Investments, LP | 0.00% | Reduce -71.7% | 367,237 | $1.2M |
| Jane Street Group, LLC | 0.00% | Reduce -29.9% | 344,173 | $1.1M |
| Ghost Tree Capital, LLC | 0.36% | New | 325,000 | $1.1M |
| Two Sigma Advisers, LP | 0.00% | Reduce -73.2% | 309,500 | $1.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -42.0% | 302,270 | $979K |
| Marshall Wace, LLP | 0.00% | New | 283,986 | $920K |
| Ikarian Capital, LLC | 0.28% | No change | 274,551 | $890K |
| Renaissance Technologies | 0.00% | Reduce -66.5% | 271,800 | $881K |
| Aldebaran Capital, LLC | 0.80% | No change | 269,803 | $874K |
| UBS Group AG | 0.00% | Add +660.1% | 229,076 | $742K |
| First Trust Advisors LP | 0.00% | Add +59.3% | 221,626 | $718K |
| FMR LLC | 0.00% | Add +292.0% | 221,001 | $716K |
| ADAR1 Capital Management, LLC | 0.12% | Add +105.9% | 220,906 | $716K |
| Panagora Asset Management Inc. | 0.00% | No change | 188,465 | $611K |
| Federated Hermes, Inc. | 0.00% | Add +4.2% | 186,286 | $604K |
| Qube Research & Technologies Ltd | 0.00% | Reduce -76.7% | 183,894 | $596K |
| Schonfeld Strategic Advisors LLC | 0.00% | Add +670.5% | 166,429 | $539K |
| State Street Corp. | 0.00% | No change | 154,908 | $502K |
| JPMorgan Chase & Co. | 0.00% | Add +144.4% | 140,559 | $455K |
| Bank of Montreal | 0.00% | Add +36.4% | 143,512 | $442K |
| Man Group plc | 0.00% | Add +12.7% | 130,862 | $424K |
| Bridgeway Capital Management, LLC | 0.01% | No change | 130,000 | $421K |
| Group One Trading LLC | 0.02% | Reduce -55.3% | 129,290 | $419K |
| Shay Capital LLC | 0.11% | New | 117,328 | $380K |
| Hennion & Walsh Asset Management, Inc. | 0.02% | Reduce -3.7% | 114,534 | $371K |
| Simplex Trading, LLC | 0.01% | Reduce -49.3% | 111,728 | $361K |
| Algert Global LLC | 0.01% | Add +328.1% | 106,219 | $344K |
| Tang Capital Management LLC | 0.02% | No change | 100,000 | $324K |
| Northern Trust Corp. | 0.00% | Reduce -74.0% | 95,350 | $309K |
| Boothbay Fund Management, LLC | 0.01% | No change | 85,477 | $277K |
| Barclays PLC | 0.00% | Add +91.1% | 84,572 | $274K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.05% | Add +1.9% | 83,563 | $271K |
| HRT Financial LP | 0.00% | Add +175.2% | 81,291 | $263K |
| Graham Capital Management, L.P. | 0.01% | Reduce -78.9% | 67,956 | $220K |
| HSBC Holdings PLC | 0.00% | Reduce -19.1% | 61,687 | $197K |
| Savant Capital, LLC | 0.00% | Reduce -40.0% | 57,565 | $187K |
| SG Americas Securities, LLC | 0.00% | Add +2.8% | 57,386 | $186K |
| Mariner, LLC | 0.00% | Reduce -2.1% | 56,334 | $183K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 55,600 | $181K |
| Balyasny Asset Management L.P. | 0.00% | Add +122.4% | 50,903 | $165K |
| Legacy Advisors, LLC | 0.02% | No change | 50,000 | $162K |
| Cubist Systematic Strategies, LLC | 0.00% | Reduce -70.5% | 49,081 | $159K |
| Squarepoint Ops LLC | 0.00% | Reduce -82.4% | 48,005 | $156K |
| XTX Topco Ltd | 0.01% | Reduce -77.4% | 47,672 | $154K |
| Jefferies Financial Group Inc. | 0.00% | New | 46,200 | $150K |
| Marex Group Ltd | 0.00% | New | 40,000 | $130K |
| Mackenzie Financial Corp. | 0.00% | Reduce -42.6% | 33,240 | $108K |
| State of Wyoming | 0.01% | Reduce -58.3% | 25,777 | $84K |
| Bank of New York Mellon Corp | 0.00% | New | 23,679 | $77K |
| Parsons Capital Management Inc. | 0.00% | No change | 21,945 | $71K |
| American Century Companies Inc. | 0.00% | Add +10.6% | 21,049 | $68K |
| Premier Path Wealth Partners, LLC | 0.01% | New | 20,265 | $66K |
| Brown Advisory Inc. | 0.00% | Reduce -0.1% | 19,950 | $65K |
| Prudential Financial Inc. | 0.00% | New | 19,400 | $63K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Add +41.3% | 16,592 | $54K |
| Vident Advisory, LLC | 0.00% | Add +43.6% | 15,572 | $50K |
| Guggenheim Capital LLC | 0.00% | Reduce -0.3% | 15,398 | $50K |
| Aries Wealth Management | 0.01% | New | 15,000 | $49K |
| Corton Capital Inc. | 0.02% | New | 13,104 | $42K |
| China Universal Asset Management Co., Ltd. | 0.00% | Add +63.9% | 13,094 | $42K |
| Royal Bank of Canada | 0.00% | Reduce -30.8% | 11,850 | $38K |
| Bayesian Capital Management, LP | 0.00% | New | 10,700 | $35K |
| Bank of Nova Scotia | 0.00% | New | 10,696 | $35K |
| Atria Wealth Solutions, Inc. | 0.00% | New | 10,000 | $32K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -69.8% | 9,640 | $31K |
| Advisors Asset Management, Inc. | 0.00% | Reduce -8.2% | 7,653 | $25K |
| Catalyst Funds Management Pty Ltd | 0.01% | No change | 7,500 | $24K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -23.4% | 6,989 | $23K |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 0.00% | No change | 1,803 | $9K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Add +21.3% | 2,462 | $8K |
| Arax Advisory Partners | 0.00% | No change | 2,193 | $7K |
| nVerses Capital, LLC | 0.00% | New | 2,100 | $7K |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 2,000 | $6K |
| Oliver Lagore Vanvalin Investment Group | 0.00% | New | 1,600 | $5K |
"% of holder's portfolio" is AMLX's weight in each manager's 13F, not the share of Amylyx Pharmaceuticals Inc. the manager owns.