Annexon, Inc.
ANNX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001528115
In the last 90 days, Annexon, Inc. insiders filed 1 open-market purchase and 0 sales; 216 institutions reported holding it in 13F filings for Q2 2026, worth $1.02B in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Annexon, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 144
- +16 vs. Q2 2025
- Shares held
- 101.4M
- +1.69M (+1.7%) vs. Q2 2025
- Total value
- $309.2M
- +$70.5M (+29.5%) vs. Q2 2025
- New holders
- 33
- 51 more added
- Sold out
- 17
- 36 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ANNX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 216 | $1.02B |
| Q1 2026 | 217 | $863.7M |
| Q4 2025 | 168 | $687.2M |
| Q3 2025 | 144 | $309.2M |
| Q2 2025 | 129 | $238.7M |
| Q1 2025 | 148 | $192.1M |
| Q4 2024 | 153 | $574.6M |
| Q3 2024 | 142 | $651.8M |
| Q2 2024 | 140 | $526.9M |
| Q1 2024 | 127 | $679.4M |
| Q4 2023 | 99 | $365.7M |
| Q3 2023 | 93 | $126.0M |
| Q2 2023 | 95 | $190.0M |
| Q1 2023 | 100 | $207.6M |
| Q4 2022 | 84 | $243.3M |
| Q3 2022 | 72 | $292.3M |
| Q2 2022 | 78 | $144.9M |
| Q1 2022 | 100 | $105.9M |
| Q4 2021 | 97 | $445.7M |
| Q3 2021 | 82 | $708.6M |
| Q2 2021 | 74 | $873.7M |
| Q1 2021 | 72 | $1.04B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 11,081,163 | $33.8M | 0.00% | −4,614,063−29.4% | Reduced |
| BlackRock, Inc. | 7,899,008 | $24.1M | 0.00% | −63,360−0.8% | Reduced |
| BVF Inc | 7,000,000 | $21.4M | 0.87% | 00.0% | Unchanged |
| Redmile Group, LLC | 6,300,644 | $19.2M | 1.87% | 00.0% | Unchanged |
| Vanguard Group Inc | 5,835,112 | $17.8M | 0.00% | +469,073+8.7% | Added |
| Bain Capital Life Sciences Investors, LLC | 5,249,069 | $16.0M | 1.06% | 00.0% | Unchanged |
| Bellevue Group AG | 5,157,290 | $15.7M | 0.33% | 00.0% | Unchanged |
| Morgan Stanley | 3,029,848 | $9.24M | 0.00% | +2,197,308+263.9% | Added |
| Millennium Management LLC | 2,822,823 | $8.61M | 0.01% | +308,689+12.3% | Added |
| Woodline Partners LP | 2,638,275 | $8.05M | 0.04% | +1,584,566+150.4% | Added |
| Opaleye Management Inc. | 2,600,000 | $7.93M | 1.12% | +2,600,000 | New |
| Candriam Luxembourg S.C.A. | 2,534,230 | $7.73M | 0.04% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 2,436,944 | $7.43M | 0.00% | +152,171+6.7% | Added |
| Goldman Sachs Group Inc | 2,406,432 | $7.34M | 0.00% | +775,783+47.6% | Added |
| Ameriprise Financial Inc | 2,192,354 | $6.69M | 0.00% | +26,176+1.2% | Added |
| Polygon Management Ltd. | 2,112,455 | $6.44M | 0.94% | −697,545−24.8% | Reduced |
| State Street Corp | 2,050,308 | $6.25M | 0.00% | +69,324+3.5% | Added |
| Sphera Funds Management Ltd. | 1,794,387 | $5.47M | 1.30% | +30,000+1.7% | Added |
| Deutsche Bank AG | 1,504,349 | $4.59M | 0.00% | +992,901+194.1% | Added |
| Adage Capital Partners GP, L.L.C. | 1,500,000 | $4.58M | 0.01% | +1,500,000 | New |
| Balyasny Asset Management LLC | 1,297,260 | $3.96M | 0.01% | +1,297,260 | New |
| Bank of America Corp | 1,294,302 | $3.95M | 0.00% | −158,493−10.9% | Reduced |
| J. Goldman & Co LP | 1,107,001 | $3.38M | 0.13% | +1,107,001 | New |
| Mutual of America Capital Management LLC | 1,066,932 | $3.25M | 0.03% | −12,029−1.1% | Reduced |
| Massachusetts Financial Services Co | 980,285 | $2.99M | 0.00% | −7,228−0.7% | Reduced |
| Sirios Capital Management L P | 970,200 | $2.96M | 0.39% | −19,377−2.0% | Reduced |
| Rhenman & Partners Asset Management AB | 823,000 | $2.51M | 0.28% | +363,000+78.9% | Added |
| Charles Schwab Investment Management Inc | 790,250 | $2.41M | 0.00% | +61,861+8.5% | Added |
| Northern Trust Corp | 787,708 | $2.40M | 0.00% | +44,484+6.0% | Added |
| Dimensional Fund Advisors LP | 766,955 | $2.34M | 0.00% | −122,908−13.8% | Reduced |
| Renaissance Technologies LLC | 753,579 | $2.30M | 0.00% | −24,321−3.1% | Reduced |
| Nuveen, LLC | 682,558 | $2.08M | 0.00% | +426,640+166.7% | Added |
| Kennedy Capital Management, Inc. | 640,460 | $1.95M | 0.04% | −215,113−25.1% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 583,913 | $1.78M | 0.03% | 00.0% | Unchanged |
| AQR Capital Management LLC | 574,123 | $1.75M | 0.00% | +242,092+72.9% | Added |
| Qube Research & Technologies Ltd | 572,644 | $1.75M | 0.00% | +147,924+34.8% | Added |
| Acadian Asset Management LLC | 532,363 | $1.62M | 0.00% | +63,154+13.5% | Added |
| Price T Rowe Associates Inc | 484,775 | $1.48M | 0.00% | −23,328−4.6% | Reduced |
| Board of Trustees of The Leland Stanford Junior University | 482,550 | $1.47M | 0.17% | 00.0% | Unchanged |
| Hennion & Walsh Asset Management, Inc. | 475,929 | $1.45M | 0.05% | −8,704−1.8% | Reduced |
| Wells Fargo & Company | 409,477 | $1.25M | 0.00% | +32,503+8.6% | Added |
| Parkman Healthcare Partners LLC | 405,953 | $1.24M | 0.14% | +1,759+0.4% | Added |
| Susquehanna Portfolio Strategies, LLC | 353,744 | $1.08M | 0.02% | +146,029+70.3% | Added |
| UBS Group AG | 346,139 | $1.06M | 0.00% | +21,017+6.5% | Added |
| Bank of New York Mellon Corp | 308,188 | $940.0K | 0.00% | +7,140+2.4% | Added |
| Point72 Europe (London) LLP | 302,861 | $923.7K | 0.05% | +96,063+46.5% | Added |
| Royal Bank of Canada | 285,848 | $871.0K | 0.00% | +40,649+16.6% | Added |
| Two Sigma Investments, LP | 279,134 | $851.4K | 0.00% | +77,974+38.8% | Added |
| ExodusPoint Capital Management, LP | 243,755 | $743.5K | 0.01% | +182,064+295.1% | Added |
| SummitTX Capital, L.P. | 241,991 | $738.1K | 0.03% | +241,991 | New |
| American Century Companies Inc | 236,736 | $722.0K | 0.00% | +25,541+12.1% | Added |
| J. Safra Sarasin Holding AG | 223,221 | $680.8K | 0.01% | −158,220−41.5% | Reduced |
| Jane Street Group, LLC | 219,494 | $669.5K | 0.00% | +73,625+50.5% | Added |
| Schonfeld Strategic Advisors LLC | 212,219 | $647.3K | 0.00% | −53,831−20.2% | Reduced |
| Invesco Ltd. | 201,945 | $615.9K | 0.00% | +51,531+34.3% | Added |
| Citadel Advisors LLC | 167,500 | $510.9K | 0.00% | +154,233+1,162.5% | Added |
| Susquehanna International Group, LLP | 151,250 | $461.3K | 0.00% | −115,562−43.3% | Reduced |
| Advisor Group Holdings, Inc. | 147,375 | $458.8K | 0.00% | +67,000+83.4% | Added |
| Ieq Capital, LLC | 150,322 | $458.5K | 0.00% | +14,525+10.7% | Added |
| Barclays PLC | 147,930 | $451.2K | 0.00% | −29,698−16.7% | Reduced |
| XTX Topco Ltd | 147,840 | $450.9K | 0.02% | +147,840 | New |
| Alliancebernstein L.P. | 140,740 | $429.3K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 137,800 | $420.3K | 0.01% | +40,000+40.9% | Added |
| Manufacturers Life Insurance Company, The | 132,673 | $404.7K | 0.00% | −1,362−1.0% | Reduced |
| Rhumbline Advisers | 132,603 | $404.4K | 0.00% | −4,933−3.6% | Reduced |
| Park Avenue Securities LLC | 113,068 | $345.0K | 0.00% | 00.0% | Unchanged |
| Quarry LP | 110,000 | $335.5K | 0.08% | +66,867+155.0% | Added |
| Brevan Howard Capital Management LP | 94,554 | $288.4K | 0.00% | +41,271+77.5% | Added |
| Point72 Asset Management, L.P. | 90,049 | $274.6K | 0.00% | +90,049 | New |
| DnB Asset Management AS | 84,523 | $257.8K | 0.00% | −15,051−15.1% | Reduced |
| HRT Financial LP | 84,582 | $257.0K | 0.00% | +84,582 | New |
| Cinctive Capital Management LP | 65,466 | $199.7K | 0.01% | −70,000−51.7% | Reduced |
| Alps Advisors Inc | 47,879 | $146.0K | 0.00% | −11,322−19.1% | Reduced |
| JPMorgan Chase & Co | 46,886 | $143.0K | 0.00% | −5,933−11.2% | Reduced |
| TD Asset Management Inc | 46,848 | $142.9K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 44,979 | $137.2K | 0.00% | −7,426−14.2% | Reduced |
| MetLife Investment Management | 44,632 | $136.1K | 0.00% | −14,390−24.4% | Reduced |
| Allegheny Financial Group LTD | 42,900 | $130.8K | 0.02% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 41,987 | $128.1K | 0.04% | +7,289+21.0% | Added |
| Citizens Financial Group Inc | 40,000 | $122.0K | 0.00% | +5,000+14.3% | Added |
| Group One Trading, L.P. | 35,565 | $108.5K | 0.00% | +35,565 | New |
| China Universal Asset Management Co., Ltd. | 35,261 | $107.5K | 0.01% | +13,225+60.0% | Added |
| Lido Advisors, LLC | 34,952 | $106.6K | 0.00% | −48−0.1% | Reduced |
| New York State Common Retirement Fund | 34,479 | $105.2K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 32,357 | $98.7K | 0.00% | +6,750+26.4% | Added |
| Atom Investors LP | 30,453 | $92.9K | 0.01% | +30,453 | New |
| Police & Firemen's Retirement System of New Jersey | 28,105 | $85.7K | 0.00% | +7,518+36.5% | Added |
| Axq Capital, LP | 27,867 | $85.0K | 0.03% | +27,867 | New |
| Forefront Analytics, LLC | 27,027 | $82.4K | 0.08% | −548−2.0% | Reduced |
| Forefront Wealth Partners, LLC | 27,027 | $82.4K | 0.02% | +27,027 | New |
| Intech Investment Management LLC | 26,676 | $81.4K | 0.00% | −26,023−49.4% | Reduced |
| HSBC Holdings PLC | 25,721 | $78.1K | 0.00% | −4,134−13.8% | Reduced |
| Two Sigma Advisers, LP | 23,800 | $72.6K | 0.00% | +23,800 | New |
| CWM, LLC | 23,488 | $72.0K | 0.00% | +5,754+32.4% | Added |
| Cubist Systematic Strategies, LLC | 22,771 | $69.5K | 0.00% | +22,771 | New |
| Jacobs Levy Equity Management, Inc | 22,589 | $68.9K | 0.00% | +22,589 | New |
| Matauro, LLC | 20,572 | $62.7K | 0.01% | +9,488+85.6% | Added |
| ProShare Advisors LLC | 20,288 | $61.9K | 0.00% | −3,444−14.5% | Reduced |
| Raymond James Financial Inc | 20,000 | $61.0K | 0.00% | +20,000 | New |
| EntryPoint Capital, LLC | 19,971 | $60.9K | 0.02% | +19,971 | New |