13F

Stock

Annexon, Inc.

ANNX · held by 217 managers

Reported value

$855.6M

Holders

217

+58 new · −15 exited

Holders’ est. mark

$57.5M

Price effect on 151 books still in the name

Largest holder

$80.6M

Redmile Group, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Redmile Group, LLC14.5M$80.6M$5.23MAdded$30.2M
BlackRock, Inc.10.9M$60.6M$4.66MAdded$15.6M
Fidelity10.6M$58.9M$5.32MAdded$7.6M
BVF INC/IL8.7M$48.2M$4.52MAdded$2.36M
State Street6.92M$38.3M$2.42MAdded$15M
VANGUARD CAPITAL MANAGEMENT LLC5.96M$33MHeld
Bain Capital Life Sciences Investors, LLC5.21M$28.9M$2.71MAdded$2.53M
Bellevue Group AG5.16M$28.6M$2.68MAdded$2.68M
MAK CAPITAL ONE LLC4.72M$26.2M$1.54MAdded$11.3M
ADAGE CAPITAL PARTNERS GP, L.L.C.4.3M$23.8M$2.24MCut−$3.79M
BANK OF AMERICA CORP /DE/4.26M$23.6M$834.9KAdded$15.5M
Nuveen, LLC4.25M$23.5M$1.52MAdded$8.89M
Siren, L.L.C.3.96M$21.9MNew
Balyasny Asset Management L.P.3.89M$21.5M$1.72MAdded$4.97M
AMERIPRISE FINANCIAL INC3.45M$19.1M$1.79MCut−$2.72M
GEODE CAPITAL MANAGEMENT, LLC3.38M$18.7M$1.51MAdded$4.14M
Qube Research & Technologies Ltd3.11M$17.3M$1.24MAdded$5.3M
Palo Alto Investors LP2.95M$16.3M$1.24MAdded$4.36M
MORGAN STANLEY2.74M$15.2M$1.42MAdded$819.4K
GREAT POINT PARTNERS LLC2.5M$13.8MNew
Woodline Partners LP2.34M$12.9M$1.22MCut−$7.13M
Opaleye Management Inc.2.33M$12.9M$1.21MCut−$134K
GOLDMAN SACHS GROUP INC2.15M$11.9M$919.7KAdded$3.05M
Point72 Asset Management, L.P.1.87M$10.4M$193KAdded$8.51M
VANGUARD PORTFOLIO MANAGEMENT LLC1.48M$8.22MHeld
Y-Intercept (Hong Kong) Ltd1.32M$7.31MNew
Tetragon Partners GP Ltd1.29M$7.16M$672.1KCut−$3.04M
UBS Group AG1.25M$6.9M$196.1KAdded$5.01M
MILLENNIUM MANAGEMENT LLC1.24M$6.86M$644.1KCut−$7.38M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC1.1M$6.11M$549.7KAdded$801.1K
NORTHERN TRUST CORP1.09M$6.02M$411.8KAdded$2.05M
DIMENSIONAL FUND ADVISORS LP924.1K$5.12M$370.5KAdded$1.51M
KENNEDY CAPITAL MANAGEMENT LLC912.3K$5.05M$332.7KAdded$1.84M
MASSACHUSETTS FINANCIAL SERVICES CO /MA/903.4K$5M$469.8KAdded$469.4K
VANGUARD FIDUCIARY TRUST CO888.6K$4.92MHeld
MARSHALL WACE, LLP861.5K$4.77M$270.9KAdded$2.16M
Icahn Capital777.3K$4.31M$403.7KAdded$408.9K
Invesco Ltd.763K$4.23M$396.8KCut−$654.6K
Russell Investments Group, Ltd.711.4K$3.94M$355.2KAdded$512.3K
D. E. Shaw & Co., Inc.702.8K$3.89M$365.5KCut−$1.36M
WELLS FARGO & COMPANY/MN698.7K$3.87M$298.3KAdded$990.8K
Parkman Healthcare Partners LLC674K$3.73M$312.6KAdded$716K
Ensign Peak Advisors, Inc625.1K$3.46MNew
Longaeva Partners L.P.620.4K$3.44M$322.6KCut−$12.1M
Citadel600.1K$3.32M$143.2KAdded$1.94M
DEERFIELD MANAGEMENT COMPANY, L.P.583.9K$3.23M$303.6KAdded$303.6K
Ikarian Capital, LLC580.2K$3.21M$119.7KAdded$2.06M
SIRIOS CAPITAL MANAGEMENT L P575.1K$3.19M$299KCut−$379.6K
DEUTSCHE BANK AG\562.2K$3.11M$291.6KAdded$299.5K
Renaissance Technologies544.3K$3.02M$283KCut−$1.01M
WELLINGTON MANAGEMENT GROUP LLP521.4K$2.89M$207KAdded$890.1K
Hennion & Walsh Asset Management, Inc.509.7K$2.82M$265KAdded$138K
SILVERARC CAPITAL MANAGEMENT, LLC496.5K$2.75MNew
Board of Trustees of The Leland Stanford Junior University482.6K$2.67M$250.9KAdded$250.9K
TWO SIGMA INVESTMENTS, LP471.4K$2.61M$172.7KAdded$944.7K
VOLORIDGE INVESTMENT MANAGEMENT, LLC462.1K$2.56MNew
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC416.7K$2.31M$216.7KCut−$914.5K
Trexquant Investment LP403.7K$2.24MNew
Bank of New York Mellon Corp395K$2.19M$188.1KAdded$372.8K
Susquehanna Portfolio Strategies, LLC360.3K$2M$185.4KAdded$205.9K
JPMORGAN CHASE & CO323.9K$1.61M−$3.22KAdded$1.34M
Cinctive Capital Management LP268.6K$1.49M$139.7KCut−$313.8K
BNP PARIBAS FINANCIAL MARKETS255.4K$1.41M$32KAdded$1.11M
Swiss National Bank236K$1.31MNew
Rafferty Asset Management, LLC203.3K$1.13M$73.7KAdded$415.1K
SEI INVESTMENTS CO203.2K$1.13M$30.3KAdded$833.5K
Rosalind Advisors, Inc.200K$1.11MNew
IEQ CAPITAL, LLC195.8K$1.08M$95.2KAdded$166K
Ishara Investments LP174.3K$965.3K$90.6KCut−$2.8M
Engineers Gate Manager LP174.1K$964.7KNew
J. Goldman & Co LP170.8K$946.3K$88.8KCut−$4.04M
BOOTHBAY FUND MANAGEMENT, LLC166.2K$920.5K$33.3KAdded$598.9K
RHUMBLINE ADVISERS159.7K$884.6K$65.8KAdded$249.7K
SUSQUEHANNA INTERNATIONAL GROUP, LLP158.6K$878.9K$82.5KCut−$52.4K
JACOBS LEVY EQUITY MANAGEMENT, INC148.9K$825.1K$77.4KCut−$2.61M
MANUFACTURERS LIFE INSURANCE COMPANY, THE134.8K$746.7K$65.7KAdded$91.6K
DIADEMA PARTNERS LP132.9K$736.4K$69.1KCut−$1.02M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC130.6K$723.8KNew
Schonfeld Strategic Advisors LLC123.3K$683K$64.1KCut−$1.94M
DAFNA Capital Management LLC117.8K$652.7K$61.3KCut−$716.8K
VICTORY CAPITAL MANAGEMENT INC115.5K$640K$7.67KAdded$565.9K
Man Group plc109.2K$605.1KNew
ALLIANCEBERNSTEIN L.P.119K$597.6K−$0Cut−$108.9K
SCS Capital Management LLC99K$548.5KNew
BRIDGEWAY CAPITAL MANAGEMENT, LLC97.8K$541.8K$50.9KCut−$149.9K
Connor, Clark & Lunn Investment Management Ltd.92.7K$513.6KNew
PROFUND ADVISORS LLC91K$503.9K$27.6KAdded$237.8K
J. Safra Sarasin Holding AG90.5K$501.3K$47.1KCut−$89.9K
DNB Asset Management AS88.6K$490.9K$46.1KCut−$103K
XTX Topco Ltd80.5K$445.9K$41.9KCut−$775.5K
Legal & General Group Plc80K$443.5K$4.84KAdded$396.7K
VANGUARD ASSET MANAGEMENT, Ltd79.5K$440.4KHeld
CAPTRUST FINANCIAL ADVISORS79.2K$438.6K$16.4KAdded$280.1K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.76.3K$414.1K$22.3KAdded$139K
MetLife Investment Management, LLC72.4K$401.3K$20.3KAdded$205.3K
POLEN CAPITAL MANAGEMENT LLC70.2K$388.6KNew
Squarepoint Ops LLC68K$376.5KNew
LOS ANGELES CAPITAL MANAGEMENT LLC62.1K$343.9KNew
JANUS HENDERSON GROUP PLC59.1K$327.7KNew
Brevan Howard Capital Management LP58.4K$323.7K$30.4KCut−$297.5K
AXQ CAPITAL, LP58.2K$322.3K$15.1KAdded$176.2K
China Universal Asset Management Co., Ltd.57.7K$319.6K$18.8KAdded$138.4K
STRS OHIO55.5K$307.5KNew
ADAR1 Capital Management, LLC55K$304.7K$25KAdded$63.7K
Virtus Investment Advisers, LLC54.9K$304K$27.8KAdded$35.3K
DRW Securities, LLC54.5K$301.8KNew
Vanguard Global Advisers, LLC54.1K$299.5KHeld
Zurcher Kantonalbank (Zurich Cantonalbank)53.9K$298.4KNew
Verdad Advisers, LP53.3K$295.2KNew
Mariner, LLC53.2K$294.8K$16.1KAdded$137.4K
EntryPoint Capital, LLC51.4K$284.9K$22.2KAdded$70.1K
BIT Capital GmbH50K$277KNew
STATE OF WISCONSIN INVESTMENT BOARD49.7K$275.6KNew
JANE STREET GROUP, LLC47.1K$261K$24.5KCut−$2.32M
Creative Planning45.9K$254.4K$12.5KAdded$133.9K
Allegheny Financial Group42.9K$237.7K$22.3KAdded$22.3K
CANADA PENSION PLAN INVESTMENT BOARD40.8K$226K$9.15KAdded$137.7K
State of New Jersey Common Pension Fund D40.8K$225.8KNew
CWM, LLC39.7K$219.7K$167.7KAdded$219.5K
Police & Firemen's Retirement System of New Jersey36K$199.6K$14.6KAdded$58.5K
FIFTH THIRD BANCORP35.4K$196.1KNew
Vanguard Investments Australia, Ltd.35K$194.1KHeld
Persistent Asset Partners Ltd33.6K$186.3K$17.5KCut−$283.9K
ARIZONA STATE RETIREMENT SYSTEM32.8K$181.5KNew
Lido Advisors, LLC31K$171.7K$77.2KAdded$65.1K
CITIGROUP INC30.8K$170.7K$12.3KAdded$52.1K
INTECH INVESTMENT MANAGEMENT LLC29.9K$165.8K$15.6KCut−$47.7K
NEW YORK STATE COMMON RETIREMENT FUND29.6K$163.8K$15.4KAdded$15.4K
MIRABELLA FINANCIAL SERVICES LLP28.7K$159.2KNew
KLP KAPITALFORVALTNING AS26.3K$145.7KNew
ProShare Advisors LLC25.6K$141.8K$12.8KAdded$17.8K
E Fund Management Co., Ltd.25.6K$141.6KHeld
AlphaCentric Advisors LLC24.5K$135.8KNew
BARCLAYS PLC24.3K$134.6K$12.6KCut−$1.32M
WINTON GROUP Ltd24.1K$133.5K$12.5KCut−$134.6K
SBI Securities Co., Ltd.23.2K$128.7K$13Added$128.5K
TD Asset Management Inc22.8K$126.1K$11.8KCut−$109.1K
VOYA INVESTMENT MANAGEMENT LLC22.2K$123.1K$10KAdded$26.2K
PRELUDE CAPITAL MANAGEMENT, LLC22.2K$123K$6.24KAdded$62.7K
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC21.9K$120.6K$7.82KAdded$20.9K
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.21.5K$119.2K$5.21KAdded$68.9K
Quarry LP21.3K$117.7K$11.1KCut−$258.8K
PRUDENTIAL FINANCIAL INC20.2K$111.8KNew
Corient Private Wealth LLC19.7K$109.2K$10.2KAdded$10.3K
RAYMOND JAMES FINANCIAL INC19.4K$107.3K$10.1KCut−$17.5K
MERCER GLOBAL ADVISORS INC /ADV18.7K$103.7K$5.4KAdded$51.5K
Cerity Partners LLC18K$99.6K$7.7KAdded$25.3K
Scientech Research LLC17.3K$95.9K$8.95KAdded$9.51K
Coastal Bridge Advisors, LLC17K$94.2K$8.84KAdded$8.84K
Quadrature Capital Ltd16.9K$93.6K$8.79KCut−$150.2K
Pictet Asset Management Holding SA16.7K$92.5KNew
FOX RUN MANAGEMENT, L.L.C.17.7K$87.7KNew
TEACHER RETIREMENT SYSTEM OF TEXAS15.1K$83.6KNew
Balefire, LLC15K$83.1K$7.8KAdded$7.8K
ExodusPoint Capital Management, LP14.9K$82.8KNew
Vontobel Holding Ltd.14.5K$80.4KNew
Forefront Analytics, LLC14.2K$78.9K$6.88KAdded$12.5K
Magnetar Financial LLC14.2K$78.7KNew
LPL Financial LLC13.2K$73.2KNew
Vanguard Personalized Indexing Management, LLC12.9K$71.7K$6.71KAdded$6.9K
Tower Research Capital LLC (TRC)12.7K$70.2K$1.02KAdded$60.4K
AMERICAN CENTURY COMPANIES INC12.5K$69K$6.48KCut−$1.19M
nVerses Capital, LLC11.9K$65.9KNew
XPONANCE LLC11.2K$62.1KNew
Abel Hall, LLC10.9K$60.5KNew
Ameritas Investment Partners, Inc.10.8K$59.8K$5.04KAdded$11.1K
Merit Financial Group, LLC10.7K$59.5KNew
Integrated Wealth Concepts LLC10.2K$56.7KNew
Shay Capital LLC10K$55.4KNew
Harbor Advisors LLC10K$55.4K$5.2KAdded$5.2K
Mirae Asset Global Investments Co., Ltd.7.55K$41.8K$3.66KAdded$6.51K
NISA INVESTMENT ADVISORS, LLC7.41K$41.1K$1.36KAdded$28K
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM7.17K$39.7K$3.2KAdded$8.8K
Geneos Wealth Management Inc.6K$33.2K$3.12KAdded$3.12K
Sterling Capital Management LLC4.37K$24.2K$2.27KCut−$5.75K
GF FUND MANAGEMENT CO. LTD.3.23K$17.9K$1.48KAdded$3.64K
JONES FINANCIAL COMPANIES LLLP3.56K$17.8K−$60Added$2.83K
BNP PARIBAS ASSET MANAGEMENT Holding S.A.2.37K$13.1KNew
Larson Financial Group LLC2.02K$11.2K$1.04KAdded$1.13K
Rockefeller Capital Management L.P.1.66K$9.21K$173Added$7.53K
Farther Finance Advisors, LLC1.36K$7.32K$105Added$5.76K
OSAIC HOLDINGS, INC.1.27K$7.03K$660Cut−$732.8K
PNC Financial Services Group, Inc.1.13K$6.27K$588Added$588
Optiver Holding B.V.1.12K$6.22K$275Added$3.56K
Essential Partners LLC1.09K$6.05K$565Added$593
ROYAL BANK OF CANADA1.16K$6K−$95Cut−$9K
Allworth Financial LP1.06K$5.88K$216Added$3.79K
Trask Adam Roland1K$5.54KHeld
Caitong International Asset Management Co., Ltd835$4.63K$434Cut−$91.7K
MAI Capital Management795$4.41K$32Added$4.09K
ACADIAN ASSET MANAGEMENT LLC758.2K$4.2K$392Cut−$125
FEDERATED HERMES, INC.753$4.17K$392Added$392
IFP Advisors, Inc645$3.57K$284Added$827
EverSource Wealth Advisors, LLC591$3.27K$280Added$568
Arax Advisory Partners588$3.26K$10Added$3.16K
ROTHSCHILD INVESTMENT LLC437$2.42K$122Added$1.24K
PRICE T ROWE ASSOCIATES INC /MD/428.7K$2.38K$223Added$141
True Wealth Design, LLC322$1.78K$109Added$724
GAMMA Investing LLC316$1.75KNew
Quantbot Technologies LP308$1.71KNew
HighMark Wealth Management LLC300$1.66K$156Added$156
Physician Wealth Advisors, Inc.269$1.49K$140Added$140
ALGERT GLOBAL LLC154.8K$858New
Sunbelt Securities, Inc.110$609$57Added$57
Root Financial Partners, LLC94$521New
Fortitude Family Office, LLC87$482New
US BANCORP \DE\77$427New
GSA CAPITAL PARTNERS LLP31.7K$176New
Virtu Financial LLC28.4K$158New
Advisory Services Network, LLC23$127New
Cygnus Capital Advisors, LLC22.2K$123$6Added$63
CANADA LIFE ASSURANCE Co21.6K$121New
Stone House Investment Management, LLC20$111New
SJS Investment Consulting Inc.17$95New
JPL Wealth Management, LLC13$73New
MOUNT VERNON ASSOCIATES INC /MD/10.5K$58$5Added$5
Cambridge Investment Research Advisors, Inc.10.1K$56$5Added$2

Who left

Positions as of Q1 2026. 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.