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Annexon (ANNX) Institutional Ownership

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$5.07 -0.11 (-2.12%)
As of 08/21/2026 04:00 PM Eastern

Institutional Ownership Changes (13F Filings) for Annexon (NASDAQ:ANNX)

Number of
Institutional Buyers
(last 12 months)
105
Total
Institutional Inflows
(last 12 months)
$315.19M
Number of
Institutional Sellers
(last 12 months)
30
Total
Institutional Outflows
(last 12 months)
$18.85M
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ANNX Institutional Buying and Selling by Quarter

Annexon Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/20/2026 Susquehanna Fundamental Investments LLC21,010$120K0.0%N/A0.011%
8/20/2026 Moore Capital Management LP425,332$2.43M0.0%N/A0.224%
8/19/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC180,647$1.03M0.0%+38.3%0.095%
8/19/2026 Wellington Management Group LLP406,795$2.32M0.0%-22.0%0.215%
8/18/2026 Palo Alto Investors LP2,948,090$16.83B2.3%N/A1.555%
8/18/2026 Coastal Bridge Advisors LLC17,000$97K0.0%N/A0.009%
8/17/2026 Corient Private Wealth LP19,704$113K0.0%N/A0.010%
8/17/2026 Bank of America Corp DE614,186$3.51M0.0%N/A0.324%
8/15/2026 Jupiter Topco LLC59,100$338K0.0%N/A0.031%
8/15/2026 J. Goldman & Co LP116,046$663K0.0%N/A0.061%
8/14/2026 Canada Pension Plan Investment Board38,600$220K0.0%N/A0.024%
8/14/2026 Parkman Healthcare Partners LLC641,029$3.66M0.4%N/A0.391%
8/14/2026 Legal & General Group Plc98,118$560K0.0%N/A0.060%
8/14/2026 The Manufacturers Life Insurance Company 41,517$237K0.0%N/A0.025%
8/13/2026 Forefront Analytics LLC14,240$81K0.1%N/A0.009%
8/12/2026 Landscape Capital Management L.L.C.20,813$119K0.0%N/A0.013%
8/12/2026 Ieq Capital LLC120,010$685K0.0%N/A0.073%
8/11/2026 E Fund Management Co. Ltd.24,433$140K0.0%N/A0.015%
8/7/2026 BlackRock Inc.13,539,744$77.31M0.0%N/A8.264%
8/7/2026 Deutsche Bank AG616,489$3.52M0.0%N/A0.376%
8/6/2026 SCS Capital Management LLC99,000$565K0.0%N/A0.060%
8/6/2026 Bank of New York Mellon Corp501,442$2.86M0.0%N/A0.306%
8/6/2026 State of Wyoming19,479$111K0.0%N/A0.012%
8/6/2026 GSA Capital Partners LLP104,378$596K0.0%N/A0.064%
7/9/2026 Hennion & Walsh Asset Management Inc.507,050$2.90M0.1%-0.5%0.309%
5/19/2026 Bank of America Corp DE4,259,995$23.60M0.0%+165.3%2.600%
5/19/2026Janus Henderson Group PLC59,100$328K0.0%N/A0.036%
5/18/2026 ADAR1 Capital Management LLC55,000$305K0.0%+14.6%0.034%
5/18/2026 Redmile Group LLC14,549,768$80.61M5.3%+44.8%8.880%
5/16/2026 The Manufacturers Life Insurance Company134,786$747K0.0%+3.6%0.082%
5/14/2026 Renaissance Technologies LLC544,300$3.02M0.0%-32.2%0.332%
5/14/2026 Siren L.L.C.3,958,646$21.93M0.6%N/A2.416%
5/14/2026 Sei Investments Co.203,236$1.13M0.0%+248.8%0.124%
5/14/2026 Lido Advisors LLC31,000$172K0.0%-11.3%0.019%
5/7/2026 Dimensional Fund Advisors LP924,078$5.12M0.0%+28.6%0.569%
5/7/2026 AlphaCentric Advisors LLC24,518$136K0.1%N/A0.015%
5/7/2026 Swiss National Bank236,000$1.31M0.0%N/A0.145%
5/5/2026 Bank of New York Mellon Corp395,019$2.19M0.0%+9.2%0.243%
5/4/2026 J. Safra Sarasin Holding AG90,487$501K0.0%-23.2%0.056%
5/1/2026 Fifth Third Bancorp35,398$196K0.0%N/A0.022%
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4/28/2026 Abel Hall LLC10,921$61K0.0%N/A0.007%
4/27/2026 Y Intercept Hong Kong Ltd1,319,913$7.31M0.1%N/A0.812%
4/25/2026 Strs Ohio55,500$307K0.0%N/A0.034%
4/22/2026 Pictet Asset Management Holding SA16,701$93K0.0%N/A0.010%
3/3/2026 Caitong International Asset Management Co. Ltd19,197$96K0.0%N/A0.016%
2/19/2026 Invesco Ltd.972,449$4.88M0.0%+381.5%0.813%
2/18/2026 Mercer Global Advisors Inc. ADV10,386$52K0.0%N/A0.009%
2/18/2026 XTX Topco Ltd243,313$1.22M0.0%+64.6%0.203%
2/18/2026 Ikarian Capital LLC230,244$1.16M0.1%N/A0.192%
2/18/2026 Virtus Investment Advisers LLC53,527$269K0.1%+27.5%0.045%
2/18/2026 Wellington Management Group LLP398,077$2.00M0.0%N/A0.333%
2/18/2026 SummitTX Capital L.P.438,497$2.20M0.1%+81.2%0.367%
2/18/2026 Susquehanna Portfolio Strategies LLC356,619$1.79M0.0%+0.8%0.298%
2/18/2026 Sphera Funds Management LTD.1,316,212$6.61M1.2%-26.6%1.100%
2/18/2026 Quadrature Capital Ltd48,573$244K0.0%N/A0.041%
2/18/2026 Millennium Management LLC2,836,857$14.24M0.0%+0.5%2.371%
2/18/2026 Ishara Investments LP750,000$3.77M4.4%N/A0.627%
2/18/2026 Cinctive Capital Management LP358,986$1.80M0.1%+448.4%0.300%
2/18/2026 Balyasny Asset Management L.P.3,299,256$16.56M0.0%+154.3%2.758%
2/18/2026 Boothbay Fund Management LLC64,069$322K0.0%N/A0.054%
2/18/2026 BVF Inc. IL9,128,080$45.82M1.5%+30.4%7.630%
2/17/2026 ADAR1 Capital Management LLC48,000$241K0.0%N/A0.040%
2/17/2026 Schonfeld Strategic Advisors LLC522,846$2.63M0.0%+146.4%0.437%
2/17/2026 J. Goldman & Co LP993,795$4.99M0.1%-10.2%0.831%
2/17/2026 AQR Capital Management LLC776,307$3.90M0.0%+35.2%0.649%
2/17/2026 Mak Capital One LLC2,958,527$14.85M1.6%N/A2.473%
2/17/2026 Jump Financial LLC122,858$617K0.0%N/A0.103%
2/17/2026 Price T Rowe Associates Inc. MD445,074$2.24M0.0%-8.2%0.372%
2/17/2026 Adage Capital Partners GP L.L.C.5,500,000$27.61M0.0%+266.7%4.598%
2/17/2026 Russell Investments Group Ltd.683,016$3.43M0.0%+3,648.7%0.571%
2/17/2026 Captrust Financial Advisors31,585$159K0.0%N/A0.026%
2/16/2026 Mariner LLC31,335$157K0.0%N/A0.026%
2/16/2026 Landscape Capital Management L.L.C.10,016$50K0.0%N/A0.008%
2/16/2026 Barclays PLC289,963$1.46M0.0%+96.0%0.242%
2/13/2026 Marshall Wace LLP520,998$2.62M0.0%N/A0.436%
2/13/2026 The Manufacturers Life Insurance Company 130,102$655K0.0%-1.9%0.109%
2/13/2026 Quarry LP75,000$376K0.1%-31.8%0.063%
2/13/2026 Jacobs Levy Equity Management Inc.683,879$3.43M0.0%+2,927.5%0.572%
2/13/2026 Sirios Capital Management L P710,256$3.57M0.4%-26.8%0.594%
2/13/2026 Rafferty Asset Management LLC141,644$711K0.0%N/A0.118%
2/13/2026 Charles Schwab Investment Management Inc.1,057,060$5.31M0.0%+33.8%0.884%
2/13/2026 State Street Corp4,652,185$23.35M0.0%+126.9%3.889%
2/13/2026 Ieq Capital LLC182,982$919K0.0%+21.7%0.153%
2/13/2026 Caitong International Asset Management Co. Ltd16,415$82K0.2%N/A0.014%
2/13/2026 Wells Fargo & Company MN573,748$2.88M0.0%+40.1%0.480%
2/12/2026 MetLife Investment Management LLC39,059$196K0.0%-12.5%0.033%
2/12/2026 Renaissance Technologies LLC802,600$4.03M0.0%+6.5%0.671%
2/12/2026 Dimensional Fund Advisors LP718,680$3.61M0.0%-6.3%0.601%
2/12/2026 EntryPoint Capital LLC42,774$215K0.1%+114.2%0.036%
2/12/2026 New York State Common Retirement Fund29,568$148K0.0%-14.2%0.025%
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2/12/2026 Nuveen LLC2,915,324$14.64M0.0%+327.1%2.437%
2/11/2026 Deutsche Bank AG560,744$2.82M0.0%-62.7%0.469%
2/11/2026 Cerity Partners LLC14,801$74K0.0%N/A0.012%
2/11/2026 Landing Point Financial Group LLC34,900$175K0.1%N/A0.029%
2/11/2026 WINTON GROUP Ltd53,400$268K0.0%N/A0.045%
2/10/2026 Goldman Sachs Group Inc.1,768,745$8.88M0.0%-26.5%1.479%
2/10/2026 Intech Investment Management LLC42,524$213K0.0%+59.4%0.036%
2/9/2026 Geode Capital Management LLC2,902,896$14.58M0.0%+19.1%2.427%
2/6/2026 ProShare Advisors LLC24,698$124K0.0%+21.7%0.021%
2/5/2026 DNB Asset Management AS118,324$594K0.0%+40.0%0.099%


ANNX Institutional Ownership - Frequently Asked Questions

During the previous two years, 165 institutional investors and hedge funds held shares of Annexon. The most heavily invested institutionals were Palo Alto Investors LP ($16.83B), Redmile Group LLC ($80.61M), BlackRock Inc. ($77.31M), FMR LLC ($50.69M), BVF Inc. IL ($45.82M), Point72 Asset Management L.P. ($28.87M), and Adage Capital Partners GP L.L.C. ($27.61M).Learn more on Annexon's institutional investors.

Of the 149 institutional investors that purchased Annexon's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($13.54M), State Street Corp ($4.67M), Redmile Group LLC ($4.50M), Adage Capital Partners GP L.L.C. ($4M), Siren L.L.C. ($3.96M), Bank of America Corp DE ($3.68M), and Mak Capital One LLC ($2.96M).

Institutional investors have bought a total of 60,105,779 shares in the last 24 months. This purchase volume represents approximately $315.19M in transactions.

Of the 30 institutional investors that sold Annexon's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Deutsche Bank AG ($943.61K), Goldman Sachs Group Inc. ($637.69K), Sphera Funds Management LTD. ($478.18K), J. Safra Sarasin Holding AG ($290.95K), Sirios Capital Management L P ($279.32K), Renaissance Technologies LLC ($258.30K), and Kennedy Capital Management LLC ($215.11K).

Institutional investors have sold a total of 4,064,580 shares in the last 24 months. This volume of shares sold represents approximately $18.85M in transactions.



Institutional ownership data for NASDAQ:ANNX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/20/2026. New 13F filings are added each quarter as they're published.
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