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 2024
Institutional positions in Annexon, Inc. as of Sep 30, 2024. 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
- 142
- +4 vs. Q2 2024
- Shares held
- 110.2M
- +9.36M (+9.3%) vs. Q2 2024
- Total value
- $651.8M
- +$157.9M (+32.0%) vs. Q2 2024
- New holders
- 22
- 57 more added
- Sold out
- 18
- 38 more reduced
2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: 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 2024
Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Walleye Capital LLC | 328,698 | $1.95M | 0.02% | +328,698 | New |
| Octagon Capital Advisors LP | 400,000 | $2.37M | 0.38% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 401,400 | $2.38M | 0.00% | −182,800−31.3% | Reduced |
| Qube Research & Technologies Ltd | 429,559 | $2.54M | 0.00% | −18,141−4.1% | Reduced |
| Alyeska Investment Group, L.P. | 450,000 | $2.66M | 0.01% | 00.0% | Unchanged |
| Board of Trustees of The Leland Stanford Junior University | 482,550 | $2.86M | 0.24% | 00.0% | Unchanged |
| Deutsche Bank AG | 508,055 | $3.01M | 0.00% | +12,365+2.5% | Added |
| Rhenman & Partners Asset Management AB | 560,000 | $3.32M | 0.27% | −340,000−37.8% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 583,913 | $3.46M | 0.05% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 636,391 | $3.77M | 0.03% | −177,830−21.8% | Reduced |
| Ghost Tree Capital, LLC | 650,000 | $3.85M | 1.31% | +340,000+109.7% | Added |
| Mutual of America Capital Management LLC | 659,254 | $3.90M | 0.04% | +19,681+3.1% | Added |
| Charles Schwab Investment Management Inc | 732,216 | $4.33M | 0.00% | +504,656+221.8% | Added |
| Readystate Asset Management LP | 774,860 | $4.59M | 0.24% | −108,588−12.3% | Reduced |
| Polygon Management Ltd. | 784,355 | $4.64M | 1.48% | −473,630−37.6% | Reduced |
| Northern Trust Corp | 790,065 | $4.68M | 0.00% | +234,770+42.3% | Added |
| Acadian Asset Management LLC | 944,996 | $5.59M | 0.02% | +32,845+3.6% | Added |
| Price T Rowe Associates Inc | 1,034,652 | $6.13M | 0.00% | −59,820−5.5% | Reduced |
| Dimensional Fund Advisors LP | 1,129,042 | $6.69M | 0.00% | +306,437+37.3% | Added |
| Massachusetts Financial Services Co | 1,160,886 | $6.87M | 0.00% | +96,085+9.0% | Added |
| Morgan Stanley | 1,235,485 | $7.31M | 0.00% | +227,071+22.5% | Added |
| Sio Capital Management, LLC | 1,433,155 | $8.48M | 3.80% | +1,433,155 | New |
| Kennedy Capital Management, Inc. | 1,450,895 | $8.59M | 0.19% | +536,247+58.6% | Added |
| JPMorgan Chase & Co | 1,706,182 | $10.1M | 0.00% | +19,810+1.2% | Added |
| Goldman Sachs Group Inc | 1,904,378 | $11.3M | 0.00% | +1,308,187+219.4% | Added |
| GMT Capital Corp | 1,908,366 | $11.3M | 0.45% | −1,031,579−35.1% | Reduced |
| Geode Capital Management, LLC | 2,143,635 | $12.7M | 0.00% | +331,269+18.3% | Added |
| Candriam Luxembourg S.C.A. | 2,192,799 | $13.0M | 0.07% | +139,340+6.8% | Added |
| Nuveen Asset Management, LLC | 2,555,570 | $15.1M | 0.00% | +928,168+57.0% | Added |
| Logos Global Management LP | 2,600,000 | $15.4M | 1.72% | −700,000−21.2% | Reduced |
| Adage Capital Partners GP, L.L.C. | 2,840,145 | $16.8M | 0.03% | 00.0% | Unchanged |
| Woodline Partners LP | 3,430,160 | $20.3M | 0.17% | −641,517−15.8% | Reduced |
| State Street Corp | 3,841,879 | $22.7M | 0.00% | +2,068,294+116.6% | Added |
| Vanguard Group Inc | 4,970,293 | $29.4M | 0.00% | +413,653+9.1% | Added |
| Bellevue Group AG | 5,157,290 | $30.5M | 0.49% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 5,326,998 | $31.5M | 0.11% | −662,019−11.1% | Reduced |
| Redmile Group, LLC | 6,427,462 | $38.1M | 2.24% | 00.0% | Unchanged |
| BVF Inc | 7,000,000 | $41.4M | 1.21% | 00.0% | Unchanged |
| Satter Management Co., L.P. | 7,406,024 | $43.8M | 70.35% | 00.0% | Unchanged |
| BlackRock, Inc. | 7,647,714 | $45.3M | 0.00% | +7,647,714 | New |
| Bain Capital Life Sciences Investors, LLC | 8,449,748 | $50.0M | 5.20% | +5400.0% | Added |
| FMR LLC | 8,561,949 | $50.7M | 0.00% | +262,229+3.2% | Added |
| Caption Management, LLC | 0 | $0 | 0.00% | −400,600−100.0% | Sold out |
| Ikarian Capital, LLC | 0 | $0 | 0.00% | −380,000−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −313,093−100.0% | Sold out |
| Ovata Capital Management Ltd | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Monashee Investment Management LLC | 0 | $0 | 0.00% | −150,000−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −103,493−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −42,953−100.0% | Sold out |
| Susquehanna Portfolio Strategies, LLC | 0 | $0 | 0.00% | −37,660−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −35,300−100.0% | Sold out |
| Maven Securities LTD | 0 | $0 | 0.00% | −34,707−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −22,997−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −21,996−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −18,000−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −11,440−100.0% | Sold out |
| 49 Wealth Management, LLC | 0 | $0 | 0.00% | −10,111−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −10,038−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −5,518−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |
| Susquehanna Fundamental Investments, LLC | – | – | – | – | Not filed |