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 2025
Institutional positions in Annexon, Inc. as of Mar 31, 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
- 148
- −3 vs. Q4 2024
- Shares held
- 99.8M
- −2.29M (−2.2%) vs. Q4 2024
- Total value
- $192.1M
- −$330.5M (−63.2%) vs. Q4 2024
- New holders
- 25
- 55 more added
- Sold out
- 28
- 40 more reduced
2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ExodusPoint Capital Management, LP | 183,287 | $354.0K | 0.00% | +99,850+119.7% | Added |
| American Century Companies Inc | 198,194 | $382.5K | 0.00% | +19,683+11.0% | Added |
| Susquehanna International Group, LLP | 199,225 | $384.5K | 0.00% | +136,384+217.0% | Added |
| Acadian Asset Management LLC | 203,990 | $393.0K | 0.00% | +48,345+31.1% | Added |
| J. Safra Sarasin Holding AG | 254,538 | $491.3K | 0.01% | +98,794+63.4% | Added |
| UBS Group AG | 267,348 | $516.0K | 0.00% | −61,373−18.7% | Reduced |
| Bank of New York Mellon Corp | 288,698 | $557.2K | 0.00% | +58,152+25.2% | Added |
| Nuveen, LLC | 347,032 | $669.8K | 0.00% | +347,032 | New |
| Wells Fargo & Company | 347,892 | $671.4K | 0.00% | +112,137+47.6% | Added |
| Parkman Healthcare Partners LLC | 351,436 | $678.3K | 0.08% | +20,587+6.2% | Added |
| Wellington Management Group LLP | 356,480 | $688.0K | 0.00% | +88,314+32.9% | Added |
| Rhenman & Partners Asset Management AB | 460,000 | $887.8K | 0.10% | −82,500−15.2% | Reduced |
| UBS Oconnor LLC | 466,819 | $901.0K | 0.02% | +147,935+46.4% | Added |
| Hennion & Walsh Asset Management, Inc. | 477,567 | $921.7K | 0.04% | +47,983+11.2% | Added |
| Board of Trustees of The Leland Stanford Junior University | 482,550 | $931.3K | 0.08% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 524,741 | $1.01M | 0.00% | −579,644−52.5% | Reduced |
| Deutsche Bank AG | 537,294 | $1.04M | 0.00% | +791+0.1% | Added |
| Deerfield Management Company, L.P. (Series C) | 583,913 | $1.13M | 0.02% | 00.0% | Unchanged |
| Morgan Stanley | 701,356 | $1.35M | 0.00% | +56,679+8.8% | Added |
| Charles Schwab Investment Management Inc | 725,752 | $1.40M | 0.00% | −18,043−2.4% | Reduced |
| Qube Research & Technologies Ltd | 737,268 | $1.42M | 0.00% | +275,896+59.8% | Added |
| Sirios Capital Management L P | 768,686 | $1.48M | 0.26% | +768,686 | New |
| Walleye Capital LLC | 802,913 | $1.55M | 0.02% | +146,581+22.3% | Added |
| Goldman Sachs Group Inc | 841,582 | $1.62M | 0.00% | −475,429−36.1% | Reduced |
| Kennedy Capital Management, Inc. | 874,726 | $1.69M | 0.04% | −217,108−19.9% | Reduced |
| Dimensional Fund Advisors LP | 986,879 | $1.91M | 0.00% | −373,197−27.4% | Reduced |
| Massachusetts Financial Services Co | 1,020,417 | $1.97M | 0.00% | +3,851+0.4% | Added |
| Northern Trust Corp | 1,025,925 | $1.98M | 0.00% | −3,825−0.4% | Reduced |
| Mutual of America Capital Management LLC | 1,030,683 | $1.99M | 0.02% | +1,003+0.1% | Added |
| Bank of America Corp | 1,038,724 | $2.00M | 0.00% | +1,008,784+3,369.4% | Added |
| Renaissance Technologies LLC | 1,162,437 | $2.24M | 0.00% | +668,737+135.5% | Added |
| JPMorgan Chase & Co | 1,431,965 | $2.76M | 0.00% | −79,552−5.3% | Reduced |
| Sphera Funds Management Ltd. | 1,764,387 | $3.41M | 0.84% | +521,348+41.9% | Added |
| State Street Corp | 2,039,826 | $3.94M | 0.00% | −2,470,888−54.8% | Reduced |
| Woodline Partners LP | 2,114,696 | $4.08M | 0.03% | −576,091−21.4% | Reduced |
| Geode Capital Management, LLC | 2,245,010 | $4.33M | 0.00% | +73,532+3.4% | Added |
| Candriam Luxembourg S.C.A. | 2,534,230 | $4.89M | 0.03% | 00.0% | Unchanged |
| Polygon Management Ltd. | 2,650,000 | $5.11M | 1.64% | +1,250,000+89.3% | Added |
| Sio Capital Management, LLC | 3,397,786 | $6.56M | 1.99% | +1,030,779+43.5% | Added |
| Ameriprise Financial Inc | 3,985,295 | $7.69M | 0.00% | +3,058,653+330.1% | Added |
| Logos Global Management LP | 4,000,000 | $7.72M | 1.37% | +1,450,000+56.9% | Added |
| Bellevue Group AG | 5,157,290 | $9.95M | 0.22% | 00.0% | Unchanged |
| Bain Capital Life Sciences Investors, LLC | 5,249,069 | $10.1M | 1.50% | 00.0% | Unchanged |
| Vanguard Group Inc | 5,379,659 | $10.4M | 0.00% | −167,259−3.0% | Reduced |
| Redmile Group, LLC | 6,300,644 | $12.2M | 1.15% | 00.0% | Unchanged |
| BVF Inc | 7,000,000 | $13.5M | 0.55% | 00.0% | Unchanged |
| BlackRock, Inc. | 8,526,506 | $16.5M | 0.00% | +40,319+0.5% | Added |
| FMR LLC | 13,262,328 | $25.6M | 0.00% | −962,055−6.8% | Reduced |
| Eventide Asset Management, LLC | 0 | $0 | 0.00% | −1,017,928−100.0% | Sold out |
| Readystate Asset Management LP | 0 | $0 | 0.00% | −774,860−100.0% | Sold out |
| Rafferty Asset Management, LLC | 0 | $0 | 0.00% | −218,369−100.0% | Sold out |
| Artia Global Partners LP | 0 | $0 | 0.00% | −172,226−100.0% | Sold out |
| Exome Asset Management LLC | 0 | $0 | 0.00% | −144,830−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −137,183−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −80,475−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −43,363−100.0% | Sold out |
| Profund Advisors LLC | 0 | $0 | 0.00% | −42,273−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −38,845−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −30,134−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −29,433−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −17,400−100.0% | Sold out |
| Virtus ETF Advisers LLC | 0 | $0 | 0.00% | −15,763−100.0% | Sold out |
| E Fund Management Co., Ltd. | 0 | $0 | 0.00% | −15,447−100.0% | Sold out |
| Creative Planning | 0 | $0 | 0.00% | −14,673−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −13,741−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −12,900−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −10,319−100.0% | Sold out |
| Sandia Investment Management LP | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −6,679−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −988−100.0% | Sold out |
| Bryn Mawr Trust Co | 0 | $0 | 0.00% | −403−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −211−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −151−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −133−100.0% | Sold out |
| UMA Financial Services, Inc. | 0 | $0 | 0.00% | −133−100.0% | Sold out |
| Smartleaf Asset Management LLC | 0 | $0 | 0.00% | −119−100.0% | Sold out |
| Satter Management Co., L.P. | – | – | – | – | Not filed |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |