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, Q2 2026
Institutional positions in Annexon, Inc. as of Jun 30, 2026. 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
- 216
- +3 vs. Q1 2026
- Shares held
- 178.4M
- +22.5M (+14.4%) vs. Q1 2026
- Total value
- $1.02B
- +$155.2M (+18.0%) vs. Q1 2026
- New holders
- 31
- 79 more added
- Sold out
- 28
- 80 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 19,518,496 | $111.5M | 0.00% | +8,882,848+83.5% | Added |
| BlackRock, Inc. | 13,539,744 | $77.3M | 0.00% | +2,601,235+23.8% | Added |
| Redmile Group, LLC | 11,869,877 | $67.8M | 4.55% | −2,679,891−18.4% | Reduced |
| State Street Corp | 9,824,321 | $56.1M | 0.00% | +2,905,066+42.0% | Added |
| BVF Inc | 8,698,173 | $49.7M | 1.27% | 00.0% | Unchanged |
| Woodline Partners LP | 6,925,067 | $39.5M | 0.12% | +4,587,930+196.3% | Added |
| Vanguard Capital Management LLC | 6,871,015 | $39.2M | 0.00% | +914,426+15.4% | Added |
| Mak Capital One LLC | 5,862,180 | $33.5M | 4.69% | +1,138,137+24.1% | Added |
| Goldman Sachs Group Inc | 5,825,579 | $33.3M | 0.00% | +3,672,699+170.6% | Added |
| Siren, L.L.C. | 4,458,646 | $25.5M | 0.52% | +500,000+12.6% | Added |
| Bain Capital Life Sciences Investors, LLC | 4,437,731 | $25.3M | 1.51% | −774,943−14.9% | Reduced |
| Bellevue Group AG | 4,100,016 | $23.4M | 0.49% | −1,057,274−20.5% | Reduced |
| Geode Capital Management, LLC | 4,037,193 | $23.1M | 0.00% | +659,370+19.5% | Added |
| MPM Oncology Impact Management LP | 3,544,354 | $20.2M | 1.23% | +3,544,354 | New |
| Ameriprise Financial Inc | 3,509,623 | $20.0M | 0.00% | +60,502+1.8% | Added |
| Adage Capital Partners GP, L.L.C. | 3,500,000 | $20.0M | 0.03% | −800,000−18.6% | Reduced |
| Great Point Partners LLC | 3,500,000 | $20.0M | 4.71% | +1,000,000+40.0% | Added |
| Morgan Stanley | 3,144,453 | $18.0M | 0.00% | +408,483+14.9% | Added |
| Palo Alto Investors LP | 2,948,090 | $16.8M | 2.33% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 2,830,976 | $16.2M | 0.03% | −1,055,933−27.2% | Reduced |
| Nuveen, LLC | 2,765,080 | $15.8M | 0.00% | −1,481,250−34.9% | Reduced |
| Qube Research & Technologies Ltd | 2,749,961 | $15.7M | 0.02% | −364,353−11.7% | Reduced |
| Vanguard Portfolio Management LLC | 2,246,800 | $12.8M | 0.00% | +763,710+51.5% | Added |
| Opaleye Management Inc. | 1,714,451 | $9.79M | 0.89% | −617,310−26.5% | Reduced |
| Logos Global Management LP | 1,500,000 | $8.56M | 0.37% | +1,500,000 | New |
| Dimensional Fund Advisors LP | 1,497,756 | $8.55M | 0.00% | +573,678+62.1% | Added |
| Point72 Asset Management, L.P. | 1,382,699 | $7.90M | 0.01% | −489,096−26.1% | Reduced |
| Northern Trust Corp | 1,352,046 | $7.72M | 0.00% | +265,144+24.4% | Added |
| Charles Schwab Investment Management Inc | 1,257,799 | $7.18M | 0.00% | +155,354+14.1% | Added |
| Polygon Management Ltd. | 1,242,455 | $7.09M | 1.15% | −50,000−3.9% | Reduced |
| Candriam Luxembourg S.C.A. | 1,195,142 | $6.82M | 0.03% | +1,195,142 | New |
| Millennium Management LLC | 1,184,931 | $6.77M | 0.00% | −53,747−4.3% | Reduced |
| Vanguard Fiduciary Trust Co | 1,105,450 | $6.31M | 0.00% | +216,898+24.4% | Added |
| Massachusetts Financial Services Co | 1,037,366 | $5.92M | 0.00% | +133,998+14.8% | Added |
| JPMorgan Chase & Co | 1,004,308 | $5.59M | 0.00% | +680,414+210.1% | Added |
| Wells Fargo & Company | 978,055 | $5.58M | 0.00% | +279,316+40.0% | Added |
| Panagora Asset Management Inc | 967,926 | $5.53M | 0.02% | +967,926 | New |
| Kennedy Capital Management, Inc. | 898,394 | $5.13M | 0.09% | −13,929−1.5% | Reduced |
| Ishara Investments LP | 820,000 | $4.68M | 3.50% | +645,750+370.6% | Added |
| Ensign Peak Advisors, Inc | 800,516 | $4.57M | 0.01% | +175,419+28.1% | Added |
| Arrowstreet Capital, Limited Partnership | 737,935 | $4.21M | 0.00% | +737,935 | New |
| Y-Intercept (Hong Kong) Ltd | 734,585 | $4.19M | 0.08% | −585,328−44.3% | Reduced |
| Russell Investments Group, Ltd. | 705,291 | $4.03M | 0.00% | −6,089−0.9% | Reduced |
| AQR Capital Management LLC | 691,812 | $3.95M | 0.00% | −85,441−11.0% | Reduced |
| Parkman Healthcare Partners LLC | 641,029 | $3.66M | 0.38% | −32,984−4.9% | Reduced |
| Acadian Asset Management LLC | 629,127 | $3.59M | 0.00% | −129,105−17.0% | Reduced |
| UBS Group AG | 623,094 | $3.56M | 0.00% | −622,847−50.0% | Reduced |
| Deutsche Bank AG | 616,489 | $3.52M | 0.00% | +54,308+9.7% | Added |
| Bank of America Corp | 614,186 | $3.51M | 0.00% | −3,645,809−85.6% | Reduced |
| Citadel Advisors LLC | 596,582 | $3.41M | 0.00% | −3,553−0.6% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 583,913 | $3.33M | 0.03% | 00.0% | Unchanged |
| Sirios Capital Management L P | 569,276 | $3.25M | 0.40% | −5,787−1.0% | Reduced |
| Schonfeld Strategic Advisors LLC | 533,567 | $3.05M | 0.02% | +410,285+332.8% | Added |
| Two Sigma Investments, LP | 512,796 | $2.93M | 0.00% | +41,405+8.8% | Added |
| Hennion & Walsh Asset Management, Inc. | 507,050 | $2.90M | 0.08% | −2,639−0.5% | Reduced |
| Bank of New York Mellon Corp | 501,442 | $2.86M | 0.00% | +106,423+26.9% | Added |
| Board of Trustees of The Leland Stanford Junior University | 482,550 | $2.76M | 0.52% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 459,000 | $2.62M | 0.00% | −85,300−15.7% | Reduced |
| Ikarian Capital, LLC | 430,244 | $2.46M | 0.40% | −150,000−25.9% | Reduced |
| Moore Capital Management, LP | 425,332 | $2.43M | 0.06% | +425,332 | New |
| Trexquant Investment LP | 409,667 | $2.34M | 0.01% | +6,010+1.5% | Added |
| Wellington Management Group LLP | 406,795 | $2.32M | 0.00% | −114,584−22.0% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 395,230 | $2.26M | 0.04% | +34,911+9.7% | Added |
| Mutual of America Capital Management LLC | 394,600 | $2.25M | 0.02% | −22,098−5.3% | Reduced |
| Invesco Ltd. | 330,729 | $1.89M | 0.00% | −432,276−56.7% | Reduced |
| Engineers Gate Manager LP | 319,057 | $1.82M | 0.02% | +144,916+83.2% | Added |
| DAFNA Capital Management LLC | 297,812 | $1.70M | 0.32% | +180,000+152.8% | Added |
| Jump Financial, LLC | 297,800 | $1.70M | 0.02% | +297,800 | New |
| State of Wisconsin Investment Board | 286,375 | $1.64M | 0.00% | +236,629+475.7% | Added |
| D. E. Shaw & Co., Inc. | 265,284 | $1.51M | 0.00% | −437,515−62.3% | Reduced |
| Voloridge Investment Management, LLC | 250,025 | $1.43M | 0.01% | −212,043−45.9% | Reduced |
| Swiss National Bank | 244,600 | $1.40M | 0.00% | +8,600+3.6% | Added |
| Citigroup Inc | 235,990 | $1.35M | 0.00% | +205,173+665.8% | Added |
| Cinctive Capital Management LP | 215,748 | $1.23M | 0.05% | −52,892−19.7% | Reduced |
| Marshall Wace, LLP | 210,607 | $1.20M | 0.00% | −650,868−75.6% | Reduced |
| Rhumbline Advisers | 189,578 | $1.08M | 0.00% | +29,908+18.7% | Added |
| SEI Investments Co | 183,817 | $1.05M | 0.00% | −19,419−9.6% | Reduced |
| UBS Asset Management Americas Inc | 180,647 | $1.03M | 0.00% | +50,000+38.3% | Added |
| Squarepoint Ops LLC | 173,285 | $989.5K | 0.00% | +105,329+155.0% | Added |
| Rafferty Asset Management, LLC | 173,279 | $989.4K | 0.00% | −29,990−14.8% | Reduced |
| Advisor Group Holdings, Inc. | 147,624 | $842.9K | 0.00% | +146,355+11,533.1% | Added |
| Alliancebernstein L.P. | 147,240 | $815.7K | 0.00% | +28,190+23.7% | Added |
| California State Teachers Retirement System | 134,259 | $766.6K | 0.00% | +127,086+1,771.7% | Added |
| Price T Rowe Associates Inc | 129,243 | $738.0K | 0.00% | −299,477−69.9% | Reduced |
| Victory Capital Management Inc | 127,338 | $727.1K | 0.00% | +11,811+10.2% | Added |
| Boothbay Fund Management, LLC | 120,129 | $685.9K | 0.01% | −46,035−27.7% | Reduced |
| Ieq Capital, LLC | 120,010 | $685.3K | 0.00% | −75,754−38.7% | Reduced |
| J. Goldman & Co LP | 116,046 | $662.6K | 0.02% | −54,771−32.1% | Reduced |
| XTX Topco Ltd | 112,147 | $640.4K | 0.01% | +31,652+39.3% | Added |
| Gsa Capital Partners LLP | 104,378 | $596.0K | 0.04% | +72,684+229.3% | Added |
| Vanguard Global Advisers, LLC | 102,067 | $582.8K | 0.00% | +48,013+88.8% | Added |
| Quarry LP | 100,000 | $571.0K | 0.09% | +78,750+370.6% | Added |
| SCS Capital Management LLC | 99,000 | $565.3K | 0.01% | 00.0% | Unchanged |
| Legal & General Group Plc | 98,118 | $560.3K | 0.00% | +18,072+22.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 91,661 | $520.6K | 0.00% | +15,404+20.2% | Added |
| MetLife Investment Management | 91,005 | $519.6K | 0.00% | +18,561+25.6% | Added |
| J. Safra Sarasin Holding AG | 90,487 | $516.7K | 0.01% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 88,518 | $505.4K | 0.00% | +34,651+64.3% | Added |
| Captrust Financial Advisors | 87,909 | $502.0K | 0.00% | +8,736+11.0% | Added |
| Profund Advisors LLC | 87,509 | $499.7K | 0.01% | −3,450−3.8% | Reduced |