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, Q1 2026
Institutional positions in Annexon, Inc. as of Mar 31, 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
- 217
- +51 vs. Q4 2025
- Shares held
- 155.9M
- +26.8M (+20.8%) vs. Q4 2025
- Total value
- $863.7M
- +$215.6M (+33.3%) vs. Q4 2025
- New holders
- 66
- 87 more added
- Sold out
- 15
- 49 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Jane Street Group, LLC | 47,120 | $261.0K | 0.00% | −466,716−90.8% | Reduced |
| State of Wisconsin Investment Board | 49,746 | $275.6K | 0.00% | +49,746 | New |
| BIT Capital GmbH | 50,000 | $277.0K | 0.02% | +50,000 | New |
| EntryPoint Capital, LLC | 51,421 | $284.9K | 0.08% | +8,647+20.2% | Added |
| Mariner, LLC | 53,242 | $294.8K | 0.00% | +21,907+69.9% | Added |
| Verdad Advisers, LP | 53,277 | $295.2K | 0.33% | +53,277 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 53,867 | $298.4K | 0.00% | +53,867 | New |
| Vanguard Global Advisers, LLC | 54,054 | $299.5K | 0.00% | +54,054 | New |
| DRW Securities, LLC | 54,484 | $301.8K | 0.02% | +54,484 | New |
| Virtus Investment Advisers, Inc. | 54,866 | $304.0K | 0.08% | +1,339+2.5% | Added |
| ADAR1 Capital Management, LLC | 55,000 | $304.7K | 0.02% | +7,000+14.6% | Added |
| STRS Ohio | 55,500 | $307.5K | 0.00% | +55,500 | New |
| China Universal Asset Management Co., Ltd. | 57,683 | $319.6K | 0.02% | +21,599+59.9% | Added |
| Axq Capital, LP | 58,185 | $322.3K | 0.04% | +29,077+99.9% | Added |
| Brevan Howard Capital Management LP | 58,433 | $323.7K | 0.00% | −65,320−52.8% | Reduced |
| Janus Henderson Group PLC | 59,100 | $327.7K | 0.00% | +59,100 | New |
| Los Angeles Capital Management LLC | 62,073 | $343.9K | 0.00% | +62,073 | New |
| Squarepoint Ops LLC | 67,956 | $376.5K | 0.00% | +67,956 | New |
| Polen Capital Management LLC | 70,152 | $388.6K | 0.00% | +70,152 | New |
| MetLife Investment Management | 72,444 | $401.3K | 0.00% | +33,385+85.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 76,257 | $414.1K | 0.00% | +21,494+39.2% | Added |
| Captrust Financial Advisors | 79,173 | $438.6K | 0.00% | +47,588+150.7% | Added |
| Vanguard Asset Management, Ltd | 79,486 | $440.4K | 0.00% | +79,486 | New |
| Legal & General Group Plc | 80,046 | $443.5K | 0.00% | +70,739+760.1% | Added |
| XTX Topco Ltd | 80,495 | $445.9K | 0.01% | −162,818−66.9% | Reduced |
| DnB Asset Management AS | 88,617 | $490.9K | 0.00% | −29,707−25.1% | Reduced |
| J. Safra Sarasin Holding AG | 90,487 | $501.3K | 0.01% | −27,281−23.2% | Reduced |
| Profund Advisors LLC | 90,959 | $503.9K | 0.02% | +37,951+71.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 92,707 | $513.6K | 0.00% | +92,707 | New |
| Bridgeway Capital Management, LLC | 97,800 | $541.8K | 0.01% | −40,000−29.0% | Reduced |
| SCS Capital Management LLC | 99,000 | $548.5K | 0.01% | +99,000 | New |
| Alliancebernstein L.P. | 119,050 | $597.6K | 0.00% | −21,690−15.4% | Reduced |
| Man Group plc | 109,222 | $605.1K | 0.00% | +109,222 | New |
| Victory Capital Management Inc | 115,527 | $640.0K | 0.00% | +100,770+682.9% | Added |
| DAFNA Capital Management LLC | 117,812 | $652.7K | 0.15% | −155,000−56.8% | Reduced |
| Schonfeld Strategic Advisors LLC | 123,282 | $683.0K | 0.01% | −399,564−76.4% | Reduced |
| UBS Asset Management Americas Inc | 130,647 | $723.8K | 0.00% | +130,647 | New |
| Diadema Partners LP | 132,916 | $736.4K | 0.30% | −217,084−62.0% | Reduced |
| Manufacturers Life Insurance Company, The | 134,786 | $746.7K | 0.00% | +4,684+3.6% | Added |
| Jacobs Levy Equity Management, Inc | 148,941 | $825.1K | 0.00% | −534,938−78.2% | Reduced |
| Algert Global LLC | 154,840 | $857.8K | 0.01% | +154,840 | New |
| Susquehanna International Group, LLP | 158,640 | $878.9K | 0.00% | −26,868−14.5% | Reduced |
| Rhumbline Advisers | 159,670 | $884.6K | 0.00% | +33,207+26.3% | Added |
| Boothbay Fund Management, LLC | 166,164 | $920.5K | 0.02% | +102,095+159.4% | Added |
| J. Goldman & Co LP | 170,817 | $946.3K | 0.04% | −822,978−82.8% | Reduced |
| Engineers Gate Manager LP | 174,141 | $964.7K | 0.01% | +174,141 | New |
| Ishara Investments LP | 174,250 | $965.3K | 0.97% | −575,750−76.8% | Reduced |
| Ieq Capital, LLC | 195,764 | $1.08M | 0.01% | +12,782+7.0% | Added |
| Rosalind Advisors, Inc. | 200,000 | $1.11M | 0.45% | +200,000 | New |
| SEI Investments Co | 203,236 | $1.13M | 0.00% | +144,977+248.8% | Added |
| Rafferty Asset Management, LLC | 203,269 | $1.13M | 0.00% | +61,625+43.5% | Added |
| Swiss National Bank | 236,000 | $1.31M | 0.00% | +236,000 | New |
| BNP Paribas Arbitrage, SA | 255,371 | $1.41M | 0.00% | +193,799+314.8% | Added |
| Cinctive Capital Management LP | 268,640 | $1.49M | 0.10% | −90,346−25.2% | Reduced |
| JPMorgan Chase & Co | 323,894 | $1.61M | 0.00% | +270,165+502.8% | Added |
| Susquehanna Portfolio Strategies, LLC | 360,319 | $2.00M | 0.03% | +3,700+1.0% | Added |
| Bank of New York Mellon Corp | 395,019 | $2.19M | 0.00% | +33,342+9.2% | Added |
| Trexquant Investment LP | 403,657 | $2.24M | 0.02% | +403,657 | New |
| Mutual of America Capital Management LLC | 416,698 | $2.31M | 0.03% | −225,340−35.1% | Reduced |
| Price T Rowe Associates Inc | 428,720 | $2.38M | 0.00% | −16,354−3.7% | Reduced |
| Voloridge Investment Management, LLC | 462,068 | $2.56M | 0.01% | +462,068 | New |
| Two Sigma Investments, LP | 471,391 | $2.61M | 0.00% | +139,353+42.0% | Added |
| Board of Trustees of The Leland Stanford Junior University | 482,550 | $2.67M | 0.31% | 00.0% | Unchanged |
| Silverarc Capital Management, LLC | 496,461 | $2.75M | 0.32% | +496,461 | New |
| Hennion & Walsh Asset Management, Inc. | 509,689 | $2.82M | 0.10% | −25,297−4.7% | Reduced |
| Wellington Management Group LLP | 521,379 | $2.89M | 0.00% | +123,302+31.0% | Added |
| Renaissance Technologies LLC | 544,300 | $3.02M | 0.00% | −258,300−32.2% | Reduced |
| Deutsche Bank AG | 562,181 | $3.11M | 0.00% | +1,437+0.3% | Added |
| Sirios Capital Management L P | 575,063 | $3.19M | 0.39% | −135,193−19.0% | Reduced |
| Ikarian Capital, LLC | 580,244 | $3.21M | 0.46% | +350,000+152.0% | Added |
| Deerfield Management Company, L.P. (Series C) | 583,913 | $3.23M | 0.04% | 00.0% | Unchanged |
| Citadel Advisors LLC | 600,135 | $3.32M | 0.00% | +324,841+118.0% | Added |
| Longaeva Partners L.P. | 620,401 | $3.44M | 0.17% | −2,479,599−80.0% | Reduced |
| Ensign Peak Advisors, Inc | 625,097 | $3.46M | 0.01% | +625,097 | New |
| Parkman Healthcare Partners LLC | 674,013 | $3.73M | 0.39% | +72,811+12.1% | Added |
| Wells Fargo & Company | 698,739 | $3.87M | 0.00% | +124,991+21.8% | Added |
| D. E. Shaw & Co., Inc. | 702,799 | $3.89M | 0.00% | −343,422−32.8% | Reduced |
| Russell Investments Group, Ltd. | 711,380 | $3.94M | 0.00% | +28,364+4.2% | Added |
| Acadian Asset Management LLC | 758,232 | $4.20M | 0.01% | −103,013−12.0% | Reduced |
| Invesco Ltd. | 763,005 | $4.23M | 0.00% | −209,444−21.5% | Reduced |
| AQR Capital Management LLC | 777,253 | $4.31M | 0.00% | +946+0.1% | Added |
| Marshall Wace, LLP | 861,475 | $4.77M | 0.01% | +340,477+65.4% | Added |
| Vanguard Fiduciary Trust Co | 888,552 | $4.92M | 0.00% | +888,552 | New |
| Massachusetts Financial Services Co | 903,368 | $5.00M | 0.00% | −710.0% | Reduced |
| Kennedy Capital Management, Inc. | 912,323 | $5.05M | 0.11% | +272,421+42.6% | Added |
| Dimensional Fund Advisors LP | 924,078 | $5.12M | 0.00% | +205,398+28.6% | Added |
| Northern Trust Corp | 1,086,902 | $6.02M | 0.00% | +294,902+37.2% | Added |
| Charles Schwab Investment Management Inc | 1,102,445 | $6.11M | 0.00% | +45,385+4.3% | Added |
| Millennium Management LLC | 1,238,678 | $6.86M | 0.01% | −1,598,179−56.3% | Reduced |
| UBS Group AG | 1,245,941 | $6.90M | 0.00% | +868,837+230.4% | Added |
| Polygon Management Ltd. | 1,292,455 | $7.16M | 1.41% | −740,000−36.4% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 1,319,913 | $7.31M | 0.14% | +1,319,913 | New |
| Vanguard Portfolio Management LLC | 1,483,090 | $8.22M | 0.00% | +1,483,090 | New |
| Point72 Asset Management, L.P. | 1,871,795 | $10.4M | 0.02% | +1,500,605+404.3% | Added |
| Goldman Sachs Group Inc | 2,152,880 | $11.9M | 0.00% | +384,135+21.7% | Added |
| Opaleye Management Inc. | 2,331,761 | $12.9M | 1.70% | −268,239−10.3% | Reduced |
| Woodline Partners LP | 2,337,137 | $12.9M | 0.05% | −1,662,937−41.6% | Reduced |
| Great Point Partners LLC | 2,500,000 | $13.8M | 3.39% | +2,500,000 | New |
| Morgan Stanley | 2,735,970 | $15.2M | 0.00% | −120,173−4.2% | Reduced |
| Palo Alto Investors LP | 2,948,090 | $16.3M | 2.50% | +563,898+23.7% | Added |