AnnexonANNX
13F holders, Q2 2026 (June 30)At the end of Q2 2026, 216 institutions reported holding Annexon Inc. (ANNX) in their 13F filings, down 1 from Q1 2026. 28 opened new positions and 28 sold out. The largest holders were FMR LLC ($111.5M), BlackRock, Inc. ($77.3M) and Redmile Group, LLC ($67.8M). 6 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Annexon Inc.
- CUSIP
- 03589W102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 28 | $52.4M |
| Exits | 28 | $11.9M |
All 13F filers, Q1 2026 → Q2 2026: 42,805,050 shares bought and 20,349,464 shares sold, net +22,455,586 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 216 holders
| FMR LLC | 0.00% | Add +83.5% | 19,518,496 | $111.5M |
| BlackRock, Inc. | 0.00% | Add +23.8% | 13,539,744 | $77.3M |
| Redmile Group, LLC | 4.55% | Reduce -18.4% | 11,869,877 | $67.8M |
| State Street Corp. | 0.00% | Add +42.0% | 9,824,321 | $56.1M |
| BVF Inc. | 1.27% | No change | 8,698,173 | $49.7M |
| Woodline Partners LP | 0.12% | Add +196.3% | 6,925,067 | $39.5M |
| Vanguard Capital Management LLC | 0.00% | Add +15.3% | 6,871,015 | $39.2M |
| Mak Capital One LLC | 4.69% | Add +24.1% | 5,862,180 | $33.5M |
| Goldman Sachs Group Inc. | 0.00% | Add +170.6% | 5,825,579 | $33.3M |
| Siren, L.L.C. | 0.52% | Add +12.6% | 4,458,646 | $25.5M |
| Bain Capital Life Sciences Investors, LLC | 1.51% | Reduce -14.9% | 4,437,731 | $25.3M |
| Bellevue Group AG | 0.49% | Reduce -20.5% | 4,100,016 | $23.4M |
| Geode Capital Management, LLC | 0.00% | Add +19.5% | 4,037,193 | $23.1M |
| MPM Bioimpact LLC | 1.23% | New | 3,544,354 | $20.2M |
| Ameriprise Financial Inc. | 0.00% | Add +1.8% | 3,509,623 | $20.0M |
| Great Point Partners LLC | 4.71% | Add +40.0% | 3,500,000 | $20.0M |
| Adage Capital Partners Gp, L.L.C. | 0.03% | Reduce -18.6% | 3,500,000 | $20.0M |
| Morgan Stanley | 0.00% | Add +14.9% | 3,144,453 | $18.0M |
| Palo Alto Investors LP | 2.33% | No change | 2,948,090 | $16.8M |
| Balyasny Asset Management L.P. | 0.03% | Reduce -27.2% | 2,830,976 | $16.2M |
| Nuveen, LLC | 0.00% | Reduce -34.9% | 2,765,080 | $15.8M |
| Qube Research & Technologies Ltd | 0.02% | Reduce -11.7% | 2,749,961 | $15.7M |
| Vanguard Portfolio Management LLC | 0.00% | Add +51.5% | 2,246,800 | $12.8M |
| Opaleye Management Inc. | 0.89% | Reduce -26.5% | 1,714,451 | $9.8M |
| Logos Global Management LP | 0.37% | New | 1,500,000 | $8.6M |
| Dimensional Fund Advisors LP | 0.00% | Add +62.1% | 1,497,756 | $8.6M |
| Point72 Asset Management | 0.01% | Reduce -26.1% | 1,382,699 | $7.9M |
| Northern Trust Corp. | 0.00% | Add +24.4% | 1,352,046 | $7.7M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +14.1% | 1,257,799 | $7.2M |
| Tetragon Partners GP Ltd | 1.15% | Reduce -3.9% | 1,242,455 | $7.1M |
| Candriam S.C.A. | 0.03% | New | 1,195,142 | $6.8M |
| Millennium Management | 0.00% | Reduce -4.3% | 1,184,931 | $6.8M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +24.4% | 1,105,450 | $6.3M |
| Massachusetts Financial Services Co. | 0.00% | Add +14.8% | 1,037,366 | $5.9M |
| JPMorgan Chase & Co. | 0.00% | Add +210.1% | 1,004,308 | $5.6M |
| Wells Fargo & Company | 0.00% | Add +40.0% | 978,055 | $5.6M |
| Panagora Asset Management Inc. | 0.02% | New | 967,926 | $5.5M |
| Kennedy Capital Management LLC | 0.09% | Reduce -1.5% | 898,394 | $5.1M |
| Ishara Investments LP | 3.44% | Add +370.6% | 820,000 | $4.7M |
| Ensign Peak Advisors, Inc | 0.01% | Add +28.1% | 800,516 | $4.6M |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 737,935 | $4.2M |
| Y-Intercept (Hong Kong) Ltd | 0.08% | Reduce -44.4% | 734,585 | $4.2M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -0.9% | 705,291 | $4.0M |
| AQR Capital Management | 0.00% | Reduce -11.0% | 691,812 | $4.0M |
| Parkman Healthcare Partners LLC | 0.38% | Reduce -4.9% | 641,029 | $3.7M |
| Acadian Asset Management LLC | 0.00% | Reduce -17.0% | 629,127 | $3.6M |
| UBS Group AG | 0.00% | Reduce -50.0% | 623,094 | $3.6M |
| Deutsche Bank AG | 0.00% | Add +9.7% | 616,489 | $3.5M |
| Bank of America Corp. | 0.00% | Reduce -85.6% | 614,186 | $3.5M |
| Citadel Advisors | 0.00% | Reduce -0.6% | 596,582 | $3.4M |
| Deerfield Management Company, L.P. | 0.04% | No change | 583,913 | $3.3M |
| Sirios Capital Management L P | 0.40% | Reduce -1.0% | 569,276 | $3.3M |
| Schonfeld Strategic Advisors LLC | 0.02% | Add +332.8% | 533,567 | $3.0M |
| Two Sigma Investments, LP | 0.00% | Add +8.8% | 512,796 | $2.9M |
| Hennion & Walsh Asset Management, Inc. | 0.08% | Reduce -0.5% | 507,050 | $2.9M |
| Bank of New York Mellon Corp | 0.00% | Add +26.9% | 501,442 | $2.9M |
| Board of Trustees of The Leland Stanford Junior University | 0.52% | No change | 482,550 | $2.8M |
| Renaissance Technologies | 0.00% | Reduce -15.7% | 459,000 | $2.6M |
| Ikarian Capital, LLC | 0.40% | Reduce -25.9% | 430,244 | $2.5M |
| Moore Capital Management, LP | 0.06% | New | 425,332 | $2.4M |
| Trexquant Investment LP | 0.01% | Add +1.5% | 409,667 | $2.3M |
| Wellington Management Group LLP | 0.00% | Reduce -22.0% | 406,795 | $2.3M |
| Susquehanna Portfolio Strategies, LLC | 0.04% | Add +9.7% | 395,230 | $2.3M |
| Mutual of America Capital Management LLC | 0.02% | Reduce -5.3% | 394,600 | $2.3M |
| Invesco Ltd. | 0.00% | Reduce -56.6% | 330,729 | $1.9M |
| Engineers Gate Manager LP | 0.02% | Add +83.2% | 319,057 | $1.8M |
| DAFNA Capital Management LLC | 0.32% | Add +152.8% | 297,812 | $1.7M |
| Jump Financial, LLC | 0.02% | New | 297,800 | $1.7M |
| State of Wisconsin Investment Board | 0.00% | Add +475.7% | 286,375 | $1.6M |
| D. E. Shaw & Co. | 0.00% | Reduce -62.3% | 265,284 | $1.5M |
| Voloridge Investment Management, LLC | 0.01% | Reduce -45.9% | 250,025 | $1.4M |
| Swiss National Bank | 0.00% | Add +3.6% | 244,600 | $1.4M |
| Citigroup Inc. | 0.00% | Add +665.8% | 235,990 | $1.3M |
| Cinctive Capital Management LP | 0.05% | Reduce -19.7% | 215,748 | $1.2M |
| Marshall Wace, LLP | 0.00% | Reduce -75.5% | 210,607 | $1.2M |
| Rhumbline Advisers | 0.00% | Add +18.7% | 189,578 | $1.1M |
| Sei Investments Co. | 0.00% | Reduce -9.6% | 183,817 | $1.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +38.3% | 180,647 | $1.0M |
| Squarepoint Ops LLC | 0.00% | Add +155.0% | 173,285 | $989K |
| Rafferty Asset Management, LLC | 0.00% | Reduce -14.8% | 173,279 | $989K |
| Osaic Holdings, Inc. | 0.00% | Add +11533.1% | 147,624 | $843K |
| Alliancebernstein L.P. | 0.00% | Add +23.7% | 147,240 | $816K |
| California State Teachers Retirement System | 0.00% | Add +1771.7% | 134,259 | $767K |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -69.8% | 129,243 | $738K |
| Victory Capital Management Inc. | 0.00% | Add +10.2% | 127,338 | $727K |
| Boothbay Fund Management, LLC | 0.01% | Reduce -27.7% | 120,129 | $686K |
| Ieq Capital, LLC | 0.00% | Reduce -38.7% | 120,010 | $685K |
| J. Goldman & Co LP | 0.02% | Reduce -32.1% | 116,046 | $663K |
| XTX Topco Ltd | 0.01% | Add +39.3% | 112,147 | $640K |
| Gsa Capital Partners LLP | 0.04% | Add +229.3% | 104,378 | $596K |
| Vanguard Global Advisers, LLC | 0.00% | Add +88.8% | 102,067 | $583K |
| Quarry LP | 0.09% | Add +370.6% | 100,000 | $571K |
| SCS Capital Management LLC | 0.01% | No change | 99,000 | $565K |
| Legal & General Group Plc | 0.00% | Add +22.6% | 98,118 | $560K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +20.2% | 91,661 | $521K |
| MetLife Investment Management, LLC | 0.00% | Add +25.6% | 91,005 | $520K |
| J. Safra Sarasin Holding AG | 0.01% | No change | 90,487 | $517K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +64.3% | 88,518 | $505K |
| Captrust Financial Advisors | 0.00% | Add +11.0% | 87,909 | $502K |
| Profund Advisors LLC | 0.01% | Reduce -3.8% | 87,509 | $500K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | No change | 79,486 | $454K |
| DNB Asset Management AS | 0.00% | Reduce -17.5% | 73,147 | $418K |
| Virtus Investment Advisers, LLC | 0.09% | Add +26.6% | 69,468 | $397K |
| Jain Global LLC | 0.00% | New | 64,719 | $370K |
| China Universal Asset Management Co., Ltd. | 0.02% | Add +7.6% | 62,076 | $354K |
| Los Angeles Capital Management LLC | 0.00% | No change | 62,073 | $354K |
| Diversified Trust Co. | 0.01% | New | 61,797 | $353K |
| Jupiter Topco LLC | 0.00% | — | 59,100 | $338K |
| VIRGINIA RETIREMENT SYSTEMS ET Al | 0.00% | New | 54,300 | $310K |
| WINTON GROUP Ltd | 0.01% | Add +98.3% | 47,800 | $273K |
| Jupiter Asset Management Ltd. | 0.00% | New | 46,074 | $263K |
| Creative Planning | 0.00% | Add +0.1% | 45,950 | $262K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +27.2% | 45,813 | $262K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | New | 44,706 | $255K |
| Jacobs Levy Equity Management, Inc. | 0.00% | Reduce -70.1% | 44,485 | $254K |
| SG Americas Securities, LLC | 0.00% | New | 42,823 | $245K |
| Allegheny Financial Group | 0.03% | No change | 42,900 | $245K |
| Barclays PLC | 0.00% | Add +71.7% | 41,715 | $238K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -69.2% | 41,517 | $237K |
| DRW Securities, LLC | 0.01% | Reduce -27.6% | 39,443 | $225K |
| State of New Jersey Common Pension Fund D | 0.00% | Reduce -3.3% | 39,409 | $225K |
| Susquehanna International Group, LLP | 0.00% | Reduce -75.2% | 39,394 | $225K |
| BNP Paribas Financial Markets | 0.00% | Reduce -84.6% | 39,255 | $224K |
| Fifth Third Bancorp | 0.00% | Add +9.2% | 38,640 | $221K |
| Canada Pension Plan Investment Board | 0.00% | Reduce -5.4% | 38,600 | $220K |
| New York State Common Retirement Fund | 0.00% | Add +23.7% | 36,568 | $209K |
| Vanguard Investments Australia, Ltd. | 0.00% | No change | 35,034 | $200K |
| Arizona State Retirement System | 0.00% | Add +2.7% | 33,630 | $192K |
| Blueshift Asset Management, LLC | 0.04% | New | 33,338 | $190K |
| Prelude Capital Management, LLC | 0.01% | Add +42.5% | 31,642 | $181K |
| Voya Investment Management LLC | 0.00% | Add +38.9% | 30,870 | $176K |
| Lido Advisors, LLC | 0.00% | Reduce -0.5% | 30,843 | $176K |
| EntryPoint Capital, LLC | 0.04% | Reduce -40.1% | 30,787 | $176K |
| Intech Investment Management LLC | 0.00% | No change | 29,929 | $171K |
| Bridgefront Capital, LLC | 0.04% | New | 28,528 | $163K |
| Quadrature Capital Ltd | 0.00% | Add +64.8% | 27,863 | $159K |
| Diadema Partners LP | 0.06% | Reduce -79.3% | 27,516 | $157K |
| KLP Kapitalforvaltning As | 0.00% | No change | 26,300 | $150K |
| ProShare Advisors LLC | 0.00% | Add +0.5% | 25,711 | $147K |
| Verdad Advisers, LP | 0.14% | Reduce -52.5% | 25,300 | $144K |
| Brevan Howard Capital Management LP | 0.00% | Reduce -56.7% | 25,287 | $144K |
| AlphaCentric Advisors LLC | 0.12% | Add +1.4% | 24,872 | $142K |
| Prudential Financial Inc. | 0.00% | Add +23.1% | 24,850 | $142K |
| E Fund Management Co., Ltd. | 0.00% | Reduce -4.4% | 24,433 | $140K |
| Crown Wealth Group, LLC | 0.03% | New | 23,763 | $136K |
| SBI Securities Co., Ltd. | 0.00% | No change | 23,225 | $133K |
| Raymond James Financial Inc. | 0.00% | Add +18.1% | 22,869 | $131K |
| CANADA LIFE ASSURANCE Co | 0.00% | No change | 21,646 | $124K |
| Cygnus Capital Advisors, LLC | 0.08% | Reduce -2.9% | 21,549 | $123K |
| STRS Ohio | 0.00% | Reduce -61.8% | 21,200 | $121K |
| Susquehanna Fundamental Investments, LLC | 0.00% | New | 21,010 | $120K |
| Landscape Capital Management, L.L.C. | 0.01% | Reduce -3.3% | 20,813 | $119K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Reduce -7.7% | 20,253 | $117K |
| Corient Private Wealth LP | 0.00% | No change | 19,704 | $113K |
| State of Wyoming | 0.01% | New | 19,479 | $111K |
| Mercer Global Advisors Inc. | 0.00% | Reduce -8.8% | 17,077 | $98K |
| Coastal Bridge Advisors, LLC | 0.01% | No change | 17,000 | $97K |
| Pictet Asset Management Holding SA | 0.00% | No change | 16,701 | $95K |
| Mariner, LLC | 0.00% | Reduce -69.1% | 16,469 | $94K |
| LPL Financial LLC | 0.00% | Add +19.6% | 15,809 | $90K |
| Balefire, LLC | 0.01% | Add +0.1% | 15,011 | $86K |
| DLD Asset Management, LP | 0.02% | New | 15,000 | $86K |
| Xponance LLC | 0.00% | Add +32.6% | 14,865 | $85K |
| Forefront Analytics, LLC | 0.09% | No change | 14,240 | $81K |
| Teacher Retirement System of Texas | 0.00% | Reduce -5.7% | 14,233 | $81K |
| Ameritas Investment Partners, Inc. | 0.00% | Add +30.6% | 14,097 | $80K |
| Private Advisor Group, LLC | 0.00% | New | 14,020 | $80K |
| Cerity Partners LLC | 0.00% | Reduce -22.9% | 13,867 | $79K |
| Bridgeway Capital Management, LLC | 0.00% | Reduce -86.9% | 12,800 | $73K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +0.9% | 12,786 | $73K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Reduce -3.5% | 12,488 | $71K |
| Quantinno Capital Management LP | 0.00% | New | 12,263 | $70K |
| Principal Financial Group Inc. | 0.00% | New | 11,876 | $68K |
| Merit Financial Group, LLC | 0.00% | Add +3.3% | 11,103 | $63K |
| Fox Run Management, L.L.C. | 0.01% | Reduce -38.2% | 10,920 | $62K |
| Nisa Investment Advisors, LLC | 0.00% | Add +45.4% | 10,779 | $62K |
| Mount Vernon Associates Inc. | 0.04% | No change | 10,500 | $60K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | No change | 10,110 | $58K |
| Group One Trading LLC | 0.00% | New | 10,087 | $58K |
| Harbor Advisors LLC | 0.01% | No change | 10,000 | $57K |
| Shay Capital LLC | 0.01% | No change | 10,000 | $57K |
| Fulcrum Asset Management LLP | 0.01% | New | 10,070 | $56K |
| Arax Advisory Partners | 0.00% | Add +1206.8% | 7,684 | $44K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Reduce -2.9% | 7,328 | $42K |
| Persistent Asset Partners Ltd | 0.01% | Reduce -79.7% | 6,825 | $39K |
| Geneos Wealth Management Inc. | 0.00% | No change | 6,000 | $34K |
| Royal Bank of Canada | 0.00% | Add +365.1% | 5,395 | $31K |
| Jones Financial Companies LLLP | 0.00% | No change | 3,565 | $20K |
| GF Fund Management Co. LTD. | 0.00% | Reduce -5.2% | 3,065 | $18K |
| Pacer Advisors, Inc. | 0.00% | New | 2,894 | $17K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.00% | Reduce -14.5% | 2,024 | $12K |
| Larson Financial Group LLC | 0.00% | Reduce -0.8% | 2,000 | $11K |
| Quantbot Technologies LP | 0.00% | Add +407.1% | 1,562 | $9K |
| PNC Financial Services Group, Inc. | 0.00% | Add +10.1% | 1,246 | $7K |
| Burnham & Co LLC | 0.00% | — | 1,000 | $6K |
| Allworth Financial LP | 0.00% | Reduce -21.2% | 836 | $5K |
| Rockefeller Capital Management L.P. | 0.00% | Reduce -52.7% | 786 | $4K |
| Farther Finance Advisors, LLC | 0.00% | Reduce -45.9% | 738 | $4K |
| Essential Partners LLC | 0.00% | Reduce -38.3% | 674 | $4K |
| GAMMA Investing LLC | 0.00% | Add +80.4% | 570 | $3K |
| IFP Advisors, Inc | 0.00% | Reduce -11.8% | 569 | $3K |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -5.4% | 559 | $3K |
| Sterling Capital Management LLC | 0.00% | Reduce -87.5% | 545 | $3K |
| Caitong International Asset Management Co., Ltd | 0.00% | Reduce -40.5% | 497 | $3K |
| Fortitude Family Office, LLC | 0.00% | Add +455.2% | 483 | $3K |
| Optiver Holding B.V. | 0.00% | Reduce -63.8% | 406 | $2K |
| HighMark Wealth Management LLC | 0.00% | No change | 300 | $2K |
| True Wealth Design, LLC | 0.00% | Reduce -12.1% | 283 | $2K |
| Physician Wealth Advisors, Inc. | 0.00% | No change | 269 | $2K |
| Rothschild Investment LLC | 0.00% | Reduce -43.0% | 249 | $1K |
| Global Retirement Partners, LLC | 0.00% | — | 181 | $1K |
| National Bank of Canada | 0.00% | New | 67 | $383 |
| SJS Investment Consulting Inc. | 0.00% | Add +17.6% | 20 | $115 |
| Stone House Investment Management, LLC | 0.00% | Reduce -20.0% | 16 | $91 |
| Clearstead Advisors, LLC | 0.00% | New | 15 | $86 |
| Silver Grove Financial Group, Inc. | 0.00% | New | 1 | $6 |
"% of holder's portfolio" is ANNX's weight in each manager's 13F, not the share of Annexon Inc. the manager owns.