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 2025
Institutional positions in Annexon, Inc. as of Jun 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
- 129
- −19 vs. Q1 2025
- Shares held
- 99.7M
- −42.6K (0.0%) vs. Q1 2025
- Total value
- $238.7M
- +$46.6M (+24.2%) vs. Q1 2025
- New holders
- 18
- 51 more added
- Sold out
- 37
- 34 more reduced
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Charles Schwab Investment Management Inc | 728,389 | $1.75M | 0.00% | +2,637+0.4% | Added |
| Northern Trust Corp | 743,224 | $1.78M | 0.00% | −282,701−27.6% | Reduced |
| Renaissance Technologies LLC | 777,900 | $1.87M | 0.00% | −384,537−33.1% | Reduced |
| Walleye Capital LLC | 794,639 | $1.91M | 0.02% | −8,274−1.0% | Reduced |
| Morgan Stanley | 832,540 | $2.00M | 0.00% | +131,184+18.7% | Added |
| Kennedy Capital Management, Inc. | 855,573 | $2.05M | 0.05% | −19,153−2.2% | Reduced |
| Dimensional Fund Advisors LP | 889,863 | $2.14M | 0.00% | −97,016−9.8% | Reduced |
| Massachusetts Financial Services Co | 987,513 | $2.37M | 0.00% | −32,904−3.2% | Reduced |
| Sirios Capital Management L P | 989,577 | $2.37M | 0.34% | +220,891+28.7% | Added |
| Woodline Partners LP | 1,053,709 | $2.53M | 0.01% | −1,060,987−50.2% | Reduced |
| Mutual of America Capital Management LLC | 1,078,961 | $2.59M | 0.03% | +48,278+4.7% | Added |
| Bank of America Corp | 1,452,795 | $3.49M | 0.00% | +414,071+39.9% | Added |
| Goldman Sachs Group Inc | 1,630,649 | $3.91M | 0.00% | +789,067+93.8% | Added |
| Sphera Funds Management Ltd. | 1,764,387 | $4.23M | 1.11% | 00.0% | Unchanged |
| State Street Corp | 1,980,984 | $4.75M | 0.00% | −58,842−2.9% | Reduced |
| Ameriprise Financial Inc | 2,166,178 | $5.20M | 0.00% | −1,819,117−45.6% | Reduced |
| Geode Capital Management, LLC | 2,284,773 | $5.48M | 0.00% | +39,763+1.8% | Added |
| Logos Global Management LP | 2,410,000 | $5.78M | 0.77% | −1,590,000−39.8% | Reduced |
| Millennium Management LLC | 2,514,134 | $6.03M | 0.01% | +2,338,831+1,334.2% | Added |
| Candriam Luxembourg S.C.A. | 2,534,230 | $6.08M | 0.04% | 00.0% | Unchanged |
| Polygon Management Ltd. | 2,810,000 | $6.74M | 1.22% | +160,000+6.0% | Added |
| Sio Capital Management, LLC | 4,095,764 | $9.83M | 3.94% | +697,978+20.5% | Added |
| Bellevue Group AG | 5,157,290 | $12.4M | 0.27% | 00.0% | Unchanged |
| Bain Capital Life Sciences Investors, LLC | 5,249,069 | $12.6M | 1.58% | 00.0% | Unchanged |
| Vanguard Group Inc | 5,366,039 | $12.9M | 0.00% | −13,620−0.3% | Reduced |
| Redmile Group, LLC | 6,300,644 | $15.1M | 1.61% | 00.0% | Unchanged |
| BVF Inc | 7,000,000 | $16.8M | 0.60% | 00.0% | Unchanged |
| BlackRock, Inc. | 7,962,368 | $19.1M | 0.00% | −564,138−6.6% | Reduced |
| FMR LLC | 15,695,226 | $37.7M | 0.00% | +2,432,898+18.3% | Added |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −356,480−100.0% | Sold out |
| Syon Capital LLC | 0 | $0 | 0.00% | −144,485−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −135,000−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −132,997−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −96,752−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −81,636−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −78,100−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −66,375−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −65,918−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −63,161−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −61,276−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −58,130−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −53,271−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −49,123−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −47,838−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −45,714−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −41,011−100.0% | Sold out |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −34,500−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −35,162−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −34,026−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −25,145−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −20,600−100.0% | Sold out |
| Arizona State Retirement System | 0 | $0 | 0.00% | −19,875−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −19,462−100.0% | Sold out |
| KLP Kapitalforvaltning AS | 0 | $0 | 0.00% | −19,100−100.0% | Sold out |
| Quantinno Capital Management LP | 0 | $0 | 0.00% | −17,770−100.0% | Sold out |
| Great West Life Assurance Co | 0 | $0 | 0.00% | −14,935−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −14,117−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −12,926−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −11,760−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −11,425−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −10,947−100.0% | Sold out |
| Private Wealth Management Group, LLC | 0 | $0 | 0.00% | −654−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −670−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −438−100.0% | Sold out |
| Parkside Financial Bank & Trust | 0 | $0 | 0.00% | −140−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −17−100.0% | Sold out |