13F

Stock

Annexon, Inc.

ANNX · held by 168 managers

Reported value

$680.2M

Holders

168

+1 new · −0 exited

Holders’ est. mark

$8.47M

Price effect on 6 books still in the name

Largest holder

$51.3M

Fidelity

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Fidelity10.2M$51.3M—Held
Redmile Group, LLC10.1M$50.5M—Held
BVF INC/IL9.13M$45.8M—Held
BlackRock, Inc.8.96M$45M—Held
Vanguard7.75M$38.9M—Held
ADAGE CAPITAL PARTNERS GP, L.L.C.5.5M$27.6M—Held
Bain Capital Life Sciences Investors, LLC5.25M$26.4M—Held
Bellevue Group AG5.16M$25.9M—Held
State Street4.65M$23.4M—Held
AMERIPRISE FINANCIAL INC4.35M$21.8M—Held
Woodline Partners LP4M$20.1M—Held
Balyasny Asset Management L.P.3.3M$16.6M—Held
Longaeva Partners L.P.3.1M$15.6M—Held
MAK CAPITAL ONE LLC2.96M$14.9M—Held
Nuveen, LLC2.92M$14.6M—Held
GEODE CAPITAL MANAGEMENT, LLC2.9M$14.6M—Held
MORGAN STANLEY2.86M$14.3M$5.63MAdded$5.1M
MILLENNIUM MANAGEMENT LLC2.84M$14.2M—Held
Opaleye Management Inc.2.6M$13.1M—Held
Palo Alto Investors LP2.38M$12M—Held
Qube Research & Technologies Ltd2.38M$12M—Held
Tetragon Partners GP Ltd2.03M$10.2M—Held
GOLDMAN SACHS GROUP INC1.77M$8.88M—Held
BANK OF AMERICA CORP /DE/1.61M$8.06M$2.55MAdded$4.11M
SPHERA FUNDS MANAGEMENT LTD.1.32M$6.61M—Held
CHARLES SCHWAB INVESTMENT MANAGEMENT INC1.06M$5.31M—Held
D. E. Shaw & Co., Inc.1.05M$5.25M—Held
J. Goldman & Co LP993.8K$4.99M—Held
Invesco Ltd.972.4K$4.88M—Held
MASSACHUSETTS FINANCIAL SERVICES CO /MA/903.4K$4.54M—Held
Renaissance Technologies802.6K$4.03M—Held
NORTHERN TRUST CORP792K$3.98M—Held
Icahn Capital776.3K$3.9M—Held
Ishara Investments LP750K$3.77M—Held
DIMENSIONAL FUND ADVISORS LP718.7K$3.61M—Held
SIRIOS CAPITAL MANAGEMENT L P710.3K$3.57M—Held
JACOBS LEVY EQUITY MANAGEMENT, INC683.9K$3.43M—Held
Russell Investments Group, Ltd.683K$3.43M—Held
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC642K$3.22M—Held
KENNEDY CAPITAL MANAGEMENT LLC639.9K$3.21M—Held
Parkman Healthcare Partners LLC601.2K$3.02M—Held
DEERFIELD MANAGEMENT COMPANY, L.P.583.9K$2.93M—Held
WELLS FARGO & COMPANY/MN573.7K$2.88M—Held
DEUTSCHE BANK AG\560.7K$2.81M—Held
Hennion & Walsh Asset Management, Inc.535K$2.69M—Held
Schonfeld Strategic Advisors LLC522.8K$2.62M—Held
MARSHALL WACE, LLP521K$2.62M—Held
JANE STREET GROUP, LLC513.8K$2.58M—Held
Board of Trustees of The Leland Stanford Junior University482.6K$2.42M—Held
SummitTX Capital, L.P.438.5K$2.2M—Held
WELLINGTON MANAGEMENT GROUP LLP398.1K$2M—Held
UBS Group AG377.1K$1.89M—Held
Point72 Asset Management, L.P.371.2K$1.86M—Held
Bank of New York Mellon Corp361.7K$1.82M—Held
Cinctive Capital Management LP359K$1.8M—Held
Susquehanna Portfolio Strategies, LLC356.6K$1.79M—Held
DIADEMA PARTNERS LP350K$1.76M—Held
TWO SIGMA INVESTMENTS, LP332K$1.67M—Held
BARCLAYS PLC290K$1.46M$291.4KAdded$1M
Citadel275.3K$1.38M—Held
DAFNA Capital Management LLC272.8K$1.37M—Held
AMERICAN CENTURY COMPANIES INC251.2K$1.26M—Held
XTX Topco Ltd243.3K$1.22M—Held
Ikarian Capital, LLC230.2K$1.16M—Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP185.5K$931.3K—Held
IEQ CAPITAL, LLC183K$918.6K—Held
OSAIC HOLDINGS, INC.147.4K$739.8K—Held
Rafferty Asset Management, LLC141.6K$711.1K—Held
ALLIANCEBERNSTEIN L.P.140.7K$706.5K—Held
BRIDGEWAY CAPITAL MANAGEMENT, LLC137.8K$691.8K—Held
MANUFACTURERS LIFE INSURANCE COMPANY, THE130.1K$655.1K—Held
RHUMBLINE ADVISERS126.5K$634.8K—Held
Brevan Howard Capital Management LP123.8K$621.2K—Held
Jump Financial, LLC122.9K$616.7K—Held
Caption Management, LLC119.5K$599.8K—Held
DNB Asset Management AS118.3K$594K—Held
J. Safra Sarasin Holding AG117.8K$591.2K—Held
Persistent Asset Partners Ltd93.7K$470.2K—New
Quarry LP75K$376.5K—Held
BOOTHBAY FUND MANAGEMENT, LLC64.1K$321.6K—Held
BNP PARIBAS FINANCIAL MARKETS61.6K$309.1K—Held
SEI INVESTMENTS CO58.3K$292.5K—Held
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.54.8K$275.1K—Held
JPMORGAN CHASE & CO53.7K$269.7K—Held
Virtus Investment Advisers, LLC53.5K$268.7K—Held
WINTON GROUP Ltd53.4K$268.1K—Held
PROFUND ADVISORS LLC53K$266.1K—Held
Quadrature Capital Ltd48.6K$243.8K—Held
ADAR1 Capital Management, LLC48K$241K—Held
TD Asset Management Inc46.8K$235.2K—Held
Allegheny Financial Group42.9K$215.4K—Held
EntryPoint Capital, LLC42.8K$214.7K—Held
INTECH INVESTMENT MANAGEMENT LLC42.5K$213.5K—Held
CITIZENS FINANCIAL GROUP INC/RI40K$200.8K—Held
MetLife Investment Management, LLC39.1K$196.1K—Held
Pale Fire Capital SE38.6K$193.8K—Held
China Universal Asset Management Co., Ltd.36.1K$181.1K—Held
Landing Point Financial Group, LLC34.9K$175.2K—Held
COMERICA BANK32.4K$162.4K—Held
CAPTRUST FINANCIAL ADVISORS31.6K$158.6K—Held
Mariner, LLC31.3K$157.4K—Held
NEW YORK STATE COMMON RETIREMENT FUND29.6K$148.4K—Held
AXQ CAPITAL, LP29.1K$146.1K—Held
Police & Firemen's Retirement System of New Jersey28.1K$141.1K—Held
HSBC HOLDINGS PLC25.7K$130.2K—Held
RAYMOND JAMES FINANCIAL INC24.9K$124.8K—Held
ProShare Advisors LLC24.7K$124K—Held
Creative Planning24K$120.5K—Held
CITIGROUP INC23.6K$118.7K—Held
Lido Advisors, LLC35K$106.6K—Held
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC19.6K$99.7K—Held
Corient Private Wealth LLC19.7K$98.9K—Held
VOYA INVESTMENT MANAGEMENT LLC19.3K$97K—Held
Caitong International Asset Management Co., Ltd19.2K$96.4K—Held
CANADA PENSION PLAN INVESTMENT BOARD17.6K$88.4K—Held
Scientech Research LLC17.2K$86.4K—Held
Coastal Bridge Advisors, LLC17K$85.3K—Held
Balefire, LLC15K$75.3K—Held
Cerity Partners LLC14.8K$74.3K—Held
VICTORY CAPITAL MANAGEMENT INC14.8K$74.1K—Held
GROUP ONE TRADING LLC14.2K$71.2K—Held
Forefront Analytics, LLC13.2K$66.4K—Held
Vanguard Personalized Indexing Management, LLC12.9K$64.8K—Held
PRELUDE CAPITAL MANAGEMENT, LLC12K$60.2K—Held
MERCER GLOBAL ADVISORS INC /ADV10.4K$52.1K—Held
SIMPLEX TRADING, LLC10.3K$51.5K—Held
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.10K$50.3K—Held
Harbor Advisors LLC10K$50.2K—Held
Ameritas Investment Partners, Inc.9.69K$48.6K—Held
Legal & General Group Plc9.31K$46.7K—Held
Mirae Asset Global Investments Co., Ltd.7.03K$35.3K—Held
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM6.16K$30.9K—Held
Geneos Wealth Management Inc.6K$30.1K—Held
Sterling Capital Management LLC5.97K$30K—Held
ROYAL BANK OF CANADA2.85K$15K—Held
JONES FINANCIAL COMPANIES LLLP2.99K$15K—Held
GF FUND MANAGEMENT CO. LTD.2.84K$14.3K—Held
NISA INVESTMENT ADVISORS, LLC2.61K$13.1K—Held
Larson Financial Group LLC2K$10K—Held
Tower Research Capital LLC (TRC)1.97K$9.87K—Held
PNC Financial Services Group, Inc.1.13K$5.68K—Held
Essential Partners LLC1.09K$5.46K$577Added$4.56K
ACADIAN ASSET MANAGEMENT LLC861.2K$4.32K—Held
FEDERATED HERMES, INC.753$3.78K—Held
IFP Advisors, Inc547$2.75K$689Added$1.68K
EverSource Wealth Advisors, LLC539$2.71K—Held
Optiver Holding B.V.530$2.66K—Held
PRICE T ROWE ASSOCIATES INC /MD/445.1K$2.23K—Held
Allworth Financial LP416$2.09K$299Added$1.63K
Rockefeller Capital Management L.P.334$1.68K—Held
ASSETMARK, INC333$1.67K—Held
Farther Finance Advisors, LLC309$1.55K—Held
HighMark Wealth Management LLC300$1.51K—Held
Physician Wealth Advisors, Inc.269$1.35K—Held
ROTHSCHILD INVESTMENT LLC236$1.19K—Held
True Wealth Design, LLC211$1.06K—Held
Sunbelt Securities, Inc.110$552—Held
MAI Capital Management63$317—Held
CWM, LLC30.3K$152—Held
SG Americas Securities, LLC28.1K$141—Held
SBI Securities Co., Ltd.25$126—Held
Arax Advisory Partners19$95—Held
Cygnus Capital Advisors, LLC12K$60—Held
Cambridge Investment Research Advisors, Inc.10.7K$54—Held
MOUNT VERNON ASSOCIATES INC /MD/10.5K$53—Held
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO4$20—Held
AMALGAMATED BANK3.14K$16—Held
Daiwa Securities Group Inc.352$2—Held

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.