AnnexonANNX
13F holders, Q4 2024 (December 31)152holders +10
24new positions
18sold out
5famous investors
$5.12avg. 13F price*
At the end of Q4 2024, 152 institutions reported holding Annexon Inc. (ANNX) in their 13F filings, up 10 from Q3 2024. 24 opened new positions and 18 sold out. The largest holders were FMR LLC ($73.0M), BlackRock, Inc. ($43.5M) and Alerce Investment Management, L.P. ($38.0M). 5 famous investors held it, including Steve Cohen (0.1% of Point72 Asset Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Annexon Inc.
- CUSIP
- 03589W102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 24 | $15.8M |
| Exits | 18 | $35.6M |
All 13F filers, Q3 2024 → Q4 2024: 16,444,413 shares bought and 14,038,833 shares sold, net +2,405,580 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 152 holders
| FMR LLC | 0.00% | Add +66.1% | 14,224,383 | $73.0M |
| BlackRock, Inc. | 0.00% | Add +11.0% | 8,486,187 | $43.5M |
| Alerce Investment Management, L.P. | 66.89% | No change | 7,406,024 | $38.0M |
| BVF Inc. | 1.22% | No change | 7,000,000 | $35.9M |
| Redmile Group, LLC | 2.25% | Reduce -2.0% | 6,300,644 | $32.3M |
| Point72 Asset Management | 0.08% | Add +5.6% | 5,626,796 | $28.9M |
| Vanguard Group Inc. | 0.00% | Add +11.6% | 5,546,918 | $28.5M |
| Bain Capital Life Sciences Investors, LLC | 3.17% | Reduce -37.9% | 5,249,069 | $26.9M |
| Bellevue Group AG | 0.51% | No change | 5,157,290 | $26.5M |
| State Street Corp. | 0.00% | Add +17.4% | 4,510,714 | $23.1M |
| Nuveen Asset Management, LLC | 0.00% | Add +6.5% | 2,720,485 | $14.0M |
| Woodline Partners LP | 0.09% | Reduce -21.6% | 2,690,787 | $13.8M |
| Logos Global Management LP | 1.53% | Reduce -1.9% | 2,550,000 | $13.1M |
| Candriam S.C.A. | 0.08% | Add +15.6% | 2,534,230 | $13.0M |
| Sio Capital Management, LLC | 3.42% | Add +65.2% | 2,367,007 | $12.1M |
| Geode Capital Management, LLC | 0.00% | Add +1.3% | 2,171,478 | $11.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -11.4% | 1,511,517 | $7.8M |
| Tetragon Partners GP Ltd | 3.06% | Add +78.5% | 1,400,000 | $7.2M |
| Dimensional Fund Advisors LP | 0.00% | Add +20.5% | 1,360,076 | $7.0M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -30.8% | 1,317,011 | $6.8M |
| Sphera Funds Management LTD. | 1.18% | New | 1,243,039 | $6.4M |
| T. Rowe Price Associates Inc. | 0.00% | Add +6.7% | 1,104,385 | $5.7M |
| Kennedy Capital Management LLC | 0.12% | Reduce -24.8% | 1,091,834 | $5.6M |
| Northern Trust Corp. | 0.00% | Add +30.3% | 1,029,750 | $5.3M |
| Mutual of America Capital Management LLC | 0.06% | Add +56.2% | 1,029,680 | $5.3M |
| Eventide Asset Management, LLC | 0.10% | New | 1,017,928 | $5.2M |
| Massachusetts Financial Services Co. | 0.00% | Reduce -12.4% | 1,016,566 | $5.2M |
| Ameriprise Financial Inc. | 0.00% | Add +483.6% | 926,642 | $4.8M |
| Readystate Asset Management LP | 0.30% | No change | 774,860 | $4.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.6% | 743,795 | $3.8M |
| Walleye Capital LLC | 0.04% | Add +99.7% | 656,332 | $3.4M |
| Morgan Stanley | 0.00% | Reduce -47.8% | 644,677 | $3.3M |
| Deerfield Management Company, L.P. | 0.06% | No change | 583,913 | $3.0M |
| Rhenman & Partners Asset Management AB | 0.29% | Reduce -3.1% | 542,500 | $2.8M |
| Deutsche Bank AG | 0.00% | Add +5.6% | 536,503 | $2.8M |
| Renaissance Technologies | 0.00% | Add +23.0% | 493,700 | $2.5M |
| Board of Trustees of The Leland Stanford Junior University | 0.21% | No change | 482,550 | $2.5M |
| Qube Research & Technologies Ltd | 0.00% | Add +7.4% | 461,372 | $2.4M |
| Hennion & Walsh Asset Management, Inc. | 0.10% | Add +65.6% | 429,584 | $2.2M |
| Parkman Healthcare Partners LLC | 0.23% | Add +0.7% | 330,849 | $1.7M |
| UBS Group AG | 0.00% | Add +50.0% | 328,721 | $1.7M |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | 0.04% | Reduce -0.5% | 318,884 | $1.6M |
| Wellington Management Group LLP | 0.00% | Add +1.8% | 268,166 | $1.4M |
| Wells Fargo & Company | 0.00% | Add +8.0% | 235,755 | $1.2M |
| Bank of New York Mellon Corp | 0.00% | Add +2.8% | 230,546 | $1.2M |
| Rafferty Asset Management, LLC | 0.00% | Add +23.5% | 218,369 | $1.1M |
| Barclays PLC | 0.00% | Add +16.4% | 206,991 | $1.1M |
| American Century Companies Inc. | 0.00% | Add +23.8% | 178,511 | $916K |
| Artia Global Partners LP | 0.36% | No change | 172,226 | $884K |
| Prudential Financial Inc. | 0.00% | Add +6.5% | 171,680 | $881K |
| Citigroup Inc. | 0.00% | Add +141.1% | 168,787 | $866K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -0.4% | 159,019 | $816K |
| J. Safra Sarasin Holding AG | 0.01% | New | 155,744 | $799K |
| Millennium Management | 0.00% | Add +114.3% | 155,676 | $799K |
| Point72 Europe (London) LLP | 0.05% | Reduce -2.7% | 155,573 | $798K |
| Acadian Asset Management LLC | 0.00% | Reduce -83.5% | 155,645 | $798K |
| Exome Asset Management LLC | 0.56% | New | 144,830 | $743K |
| Rhumbline Advisers | 0.00% | Add +4.3% | 141,852 | $728K |
| Two Sigma Investments, LP | 0.00% | Reduce -2.6% | 137,183 | $704K |
| Cinctive Capital Management LP | 0.04% | Reduce -27.5% | 135,466 | $695K |
| Swiss National Bank | 0.00% | New | 135,000 | $693K |
| TD Asset Management Inc | 0.00% | No change | 133,648 | $686K |
| Susquehanna Fundamental Investments, LLC | 0.01% | — | 119,725 | $614K |
| Park Avenue Securities LLC | 0.01% | No change | 118,068 | $606K |
| Alliancebernstein L.P. | 0.00% | Reduce -12.6% | 111,300 | $571K |
| Driehaus Capital Management LLC | 0.00% | No change | 258,314 | $547K |
| Jane Street Group, LLC | 0.00% | Add +38.1% | 92,371 | $474K |
| Alps Advisors Inc. | 0.00% | Add +15.9% | 86,194 | $442K |
| Legal & General Group Plc | 0.00% | Add +516.7% | 85,535 | $439K |
| ExodusPoint Capital Management, LP | 0.00% | New | 83,437 | $428K |
| Osaic Holdings, Inc. | 0.00% | Add +28.5% | 80,475 | $413K |
| State of Wisconsin Investment Board | 0.00% | Add +166.8% | 69,248 | $355K |
| California State Teachers Retirement System | 0.00% | Add +849.0% | 66,375 | $341K |
| MetLife Investment Management, LLC | 0.00% | Add +17.7% | 64,967 | $333K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +6.9% | 63,402 | $325K |
| Susquehanna International Group, LLP | 0.00% | Add +101.7% | 62,841 | $322K |
| Quarry LP | 0.06% | Add +190.0% | 58,000 | $298K |
| Squarepoint Ops LLC | 0.00% | Reduce -46.4% | 57,153 | $293K |
| Franklin Resources Inc. | 0.00% | Reduce -0.2% | 49,324 | $253K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 49,062 | $252K |
| Corebridge Financial, Inc. | 0.00% | Reduce -5.1% | 48,547 | $249K |
| DNB Asset Management AS | 0.00% | Add +1.8% | 47,665 | $245K |
| Schonfeld Strategic Advisors LLC | 0.00% | Reduce -92.6% | 47,300 | $243K |
| Intech Investment Management LLC | 0.00% | Add +75.8% | 45,726 | $235K |
| Prelude Capital Management, LLC | 0.02% | New | 43,363 | $222K |
| Profund Advisors LLC | 0.01% | Add +19.3% | 42,273 | $217K |
| Marshall Wace, LLP | 0.00% | Reduce -86.7% | 38,845 | $199K |
| XTX Topco Ltd | 0.02% | New | 35,151 | $180K |
| Janus Henderson Group PLC | 0.00% | New | 34,500 | $177K |
| New York State Common Retirement Fund | 0.00% | Add +143.4% | 34,479 | $177K |
| AQR Capital Management | 0.00% | Reduce -48.8% | 33,153 | $170K |
| ProShare Advisors LLC | 0.00% | Add +80.1% | 32,548 | $167K |
| Invesco Ltd. | 0.00% | Add +49.9% | 31,881 | $164K |
| Shay Capital LLC | 0.04% | New | 31,000 | $159K |
| SG Americas Securities, LLC | 0.00% | Reduce -5.5% | 30,968 | $159K |
| HSBC Holdings PLC | 0.00% | Reduce -18.6% | 30,799 | $156K |
| Sherbrooke Park Advisers LLC | 0.05% | Reduce -30.0% | 30,134 | $155K |
| Bank of America Corp. | 0.00% | Reduce -82.1% | 29,940 | $154K |
| Simplex Trading, LLC | 0.00% | Add +13.9% | 29,433 | $150K |
| Voya Investment Management LLC | 0.00% | Reduce -4.8% | 28,589 | $147K |
"% of holder's portfolio" is ANNX's weight in each manager's 13F, not the share of Annexon Inc. the manager owns.