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

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.