13F

Stock

Insmed Inc

INSM · held by 665 managers

Reported value

$33.8B

Holders

665

+86 new · −96 exited

Holders’ est. mark

−$2.04B

Price effect on 226 books still in the name

Largest holder

$3.7B

JPMORGAN CHASE & CO

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
JPMORGAN CHASE & CO24.2M$3.7B−$480.7MCut−$334.9M
BlackRock, Inc.16.7M$2.73B−$158.5MAdded$105.3M
Darwin Global Management, Ltd.16.8M$2.58B−$349MCut−$1.07B
Fidelity13.2M$2.15B−$104.4MAdded$424.1M
VANGUARD PORTFOLIO MANAGEMENT LLC10.4M$1.7BHeld
VANGUARD CAPITAL MANAGEMENT LLC9.64M$1.58BHeld
BAKER BROS. ADVISORS LP7.42M$1.21B−$69.4MAdded$66.1M
Artisan Partners Limited Partnership6.53M$1.07B−$51MAdded$224.3M
D. E. Shaw & Co., Inc.5.63M$919.9M−$45.8MAdded$162.7M
Capital International Investors5.6M$914.9M−$54.2MAdded$18.3M
State Street5.55M$907.8M−$54.7MAdded$2.5M
RTW INVESTMENTS, LP4.84M$791.9M−$50.9MCut−$50.9M
GEODE CAPITAL MANAGEMENT, LLC4.45M$733.3M−$43.5MCut−$18.6M
AMERIPRISE FINANCIAL INC3.06M$500M−$20.7MAdded$157.3M
FRANKLIN RESOURCES INC2.62M$428M−$27.5MCut−$51.6M
Citadel2.18M$356.9M−$12.2MAdded$155.5M
Invesco Ltd.1.99M$325.2M−$20.9MCut−$149.3M
Orbis Allan Gray Ltd1.87M$306.2M−$19.7MCut−$421.2M
UBS Group AG1.74M$284.1M−$18.3MCut−$40.9M
BANK OF AMERICA CORP /DE/1.5M$245.7M−$15.8MCut−$54.7M
Integral Health Asset Management, LLC1.5M$245.3M−$13.1MAdded$27.7M
WESTFIELD CAPITAL MANAGEMENT CO LP1.47M$240.1M−$4.55MAdded$164.8M
SEI INVESTMENTS CO1.4M$228.2M−$9.36MAdded$73.3M
Capital World Investors1.36M$222.7MNew
VANGUARD FIDUCIARY TRUST CO1.35M$221.5MHeld
MORGAN STANLEY1.33M$217.7M−$14MCut−$66.3M
NORTHERN TRUST CORP1.29M$211.6M−$13MCut−$3.94M
Castle Hook Partners LP1.27M$207.6M−$13.2MCut−$10.5M
Bank of New York Mellon Corp1.26M$206.5M−$13.3MCut−$35.4M
Paradigm Biocapital Advisors LP1.25M$205.1MNew
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC1.22M$198.7M−$9.92MAdded$34.5M
MILLENNIUM MANAGEMENT LLC1.16M$189.3M−$12.2MCut−$39M
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.1.14M$187M−$12MCut−$18.9M
Pictet Asset Management Holding SA1.1M$178.7M−$11.8MAdded$11.4M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC1.07M$174.9M−$10.8MCut−$3.93M
Fiera Capital Corp1.02M$167.1M−$10.4MCut−$5.69M
GOLDMAN SACHS GROUP INC942.6K$154.1M−$9.92MCut−$62.5M
AMERICAN CENTURY COMPANIES INC925.8K$151.4M−$1.95MAdded$119.2M
PRINCIPAL FINANCIAL GROUP INC916.5K$149.9M−$8.11MAdded$15.6M
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC902.7K$147.6M−$9.5MCut−$64.9M
ADAGE CAPITAL PARTNERS GP, L.L.C.900K$147.2M−$3.16MAdded$95M
FIL Ltd828.9K$135.5M−$8.72MCut−$10.4M
Amundi805K$131.6M−$8.47MCut−$28M
Legal & General Group Plc787.1K$128.7M−$5.68MAdded$34.7M
RAYMOND JAMES FINANCIAL INC775.1K$121.4M−$13.6MCut−$14.3M
ALLIANCEBERNSTEIN L.P.688.7K$119.9M−$1Added$8.01M
Hood River Capital Management LLC688.6K$112.6M−$6.71MAdded$1.63M
Icahn Capital675.5K$108.8M−$6.08MAdded$27.3M
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC653.4K$106.9M−$6.87MCut−$51.4M
Clearbridge Investments, LLC643.4K$105.2M−$6.77MCut−$37.3M
Artia Global Partners LP628.7K$102.8M−$6.61MCut−$15.9M
Swiss National Bank625.9K$102.3M−$6.09MAdded$1.56M
JENNISON ASSOCIATES LLC604.7K$98.9M−$5.92MAdded$1.02M
BNP PARIBAS FINANCIAL MARKETS604.6K$98.9M−$6.36MCut−$60.5M
WELLS FARGO & COMPANY/MN597.4K$97.7M−$6.17MCut−$4.42M
TimesSquare Capital Management, LLC584.8K$95.6M−$5.16MAdded$10.3M
DEUTSCHE BANK AG\562.5K$92M−$5.92MCut−$10.7M
EVENTIDE ASSET MANAGEMENT, LLC546.3K$89.3M−$5.12MAdded$5.13M
FEDERATED HERMES, INC.538.3K$88M−$5.66MCut−$22M
Nuveen, LLC534.8K$87.4M−$5.63MCut−$25.8M
ROYAL BANK OF CANADA523.1K$85.5M−$5.33MCut−$2.67M
Sumitomo Mitsui Trust Group, Inc.501.3K$82M−$4.58MAdded$6.19M
Ensign Peak Advisors, Inc499.8K$81.7M−$4.02MAdded$15.2M
Affinity Asset Advisors, LLC480K$78.5M−$4.73MAdded$171.6K
FRONTIER CAPITAL MANAGEMENT CO LLC469.6K$76.8M−$3MAdded$27.2M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.467.8K$76.5M$53.6MAdded$76.4M
JANUS HENDERSON GROUP PLC419.3K$68.6M−$4.41MCut−$70.8M
SAMLYN CAPITAL, LLC417.2K$68.2M−$3.89MAdded$3.9M
Palo Alto Investors LP415.3K$67.9M−$4.37MCut−$17.3M
Candriam S.C.A.401.7K$65.7M−$4.22MCut−$4.11M
DIMENSIONAL FUND ADVISORS LP400.9K$65.5M−$4.28MCut−$3.98M
WELLINGTON MANAGEMENT GROUP LLP399K$65.3M−$4.2MCut−$19.4M
VICTORY CAPITAL MANAGEMENT INC396.2K$64.8M−$4.17MCut−$47.8M
Polar Capital Holdings Plc368.1K$60.2M−$3.62MAdded$283.4K
GATEWAY INVESTMENT ADVISERS LLC365K$59.7M−$3.84MCut−$3.84M
VANGUARD ASSET MANAGEMENT, Ltd360.1K$58.9MHeld
Sofinnova Investments, Inc.346.1K$56.6M−$1.65MAdded$29.3M
California Public Employees Retirement System344.6K$56.4M−$3.63MCut−$5.42M
Rock Springs Capital Management LP314.3K$51.4M−$3.31MCut−$4.17M
MARSHALL WACE, LLP312.6K$51.1M−$3.29MCut−$16.7M
National Pension Service311.9K$51M−$2.95MAdded$2.19M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM303.2K$49.6M−$3.19MCut−$4.43M
Nearwater Capital Markets, Ltd300K$49.1M−$3.16MCut−$38M
ENVESTNET ASSET MANAGEMENT INC299.9K$49M−$2.9MAdded$990.5K
Bridgewater295.6K$48.3MNew
NEW YORK STATE COMMON RETIREMENT FUND293.5K$48M−$2.91MCut−$83.8K
Allspring Global Investments Holdings, LLC282.7K$46.6M−$2.7MAdded$7.63M
ProShare Advisors LLC283.1K$46.3M−$2.98MCut−$13M
Aberdeen Group plc277K$45.3M−$2.66MAdded$1.25M
BARCLAYS PLC275.7K$45.1M−$2.9MCut−$32.3M
RHUMBLINE ADVISERS272.6K$44.6M−$2.82MCut−$2.12M
NEUBERGER BERMAN GROUP LLC270.7K$44.3M−$2.19MAdded$8.09M
TANG CAPITAL MANAGEMENT LLC260K$42.5M−$631.2KAdded$32.1M
Mitsubishi UFJ Asset Management Co., Ltd.255.2K$41.7M−$3.02MAdded$2.37M
First Turn Management, LLC248.5K$40.6M−$2.61MCut−$5.37M
VOYA INVESTMENT MANAGEMENT LLC243.7K$39.9M−$2.11MAdded$4.88M
AXIOM INVESTORS LLC /DE239.4K$39.2M−$2.52MCut−$5.37M
TWO SIGMA INVESTMENTS, LP237K$38.8M−$2.49MCut−$128.7M
CITIGROUP INC233.3K$38.1M−$2.45MCut−$3.26M
Evergreen Quality Fund GP, Ltd.232.5K$38M−$1.27MAdded$17M
FIRST TRUST ADVISORS LP229.6K$37.5M−$2.42MCut−$5.61M
Eagle Health Investments LP224.3K$36.7M−$2.22MCut−$32.2K
Balyasny Asset Management L.P.221.7K$36.3M−$2.33MCut−$30M
Susquehanna Portfolio Strategies, LLC207.5K$33.9M−$2.18MCut−$2.18M
LOOMIS SAYLES & CO L P195K$31.9M−$2.05MCut−$2.92M
Defilade Capital Management, L.P.194.9K$31.9M−$526KAdded$23.2M
Cormorant Asset Management, LP190K$31.1M−$2MCut−$16.8M
Davern Capital Partners, LP182.6K$29.9MNew
Nicholas Investment Partners, LP182.5K$29.8M−$1.9MCut−$1.55M
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM180.4K$29.5M−$1.9MCut−$1.88M
TREMBLANT CAPITAL GROUP173.6K$28.4M−$1.83MCut−$2.18M
SUSQUEHANNA INTERNATIONAL GROUP, LLP173.6K$28.4M−$1.83MCut−$4.43M
Russell Investments Group, Ltd.169.2K$27.7M−$1.53MAdded$2.4M
SEB Asset Management AB165.6K$27.1MHeld
TD Asset Management Inc163.4K$26.7M−$1.72MCut−$19M
Rhenman & Partners Asset Management AB159.8K$26.1M−$1.19MAdded$6.36M
Engineers Gate Manager LP158.8K$26M−$576.3KAdded$16.4M
Patient Square Capital LP157.5K$25.8M−$1.66MCut−$20.7M
Zurcher Kantonalbank (Zurich Cantonalbank)152.4K$24.9M−$1.6MCut−$3.25M
Qube Research & Technologies Ltd148.5K$24.3MNew
Woodline Partners LP148.5K$24.3M−$1.37MAdded$1.62M
ExodusPoint Capital Management, LP148.1K$24.2M−$842.5KAdded$10.3M
Long Focus Capital Management, LLC145K$23.7M−$1.31MAdded$1.96M
Perpetual Ltd142.6K$23.3M−$1.49MCut−$1.31M
LPL Financial LLC138.3K$22.6M−$1.4MCut−$498K
Man Group plc126.8K$20.7M−$1.25MAdded$141.3K
FRED ALGER MANAGEMENT, LLC125.8K$20.6M−$855.4KAdded$6.41M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.123K$20.1M−$1.29MCut−$868.5K
AVIVA PLC122.1K$20M−$1.15MAdded$921.4K
Universal- Beteiligungs- und Servicegesellschaft mbH120.3K$19.7M−$1.09MAdded$1.7M
SCHRODER INVESTMENT MANAGEMENT GROUP120K$19.6M−$712.3KAdded$7.88M
HSBC HOLDINGS PLC116.5K$19M−$1.27MCut−$2.46M
Rafferty Asset Management, LLC116.1K$19M−$1.06MAdded$1.43M
PFA Pension, Forsikringsaktieselskab114.8K$18.8M−$510.9KAdded$10.4M
STATE OF WISCONSIN INVESTMENT BOARD114.3K$18.7M−$1.2MCut−$4.21M
DANSKE BANK A/S111.1K$18.2M−$1.16MCut−$1.03M
NEOS Investment Management LLC110.4K$18.1M−$504.5KAdded$9.71M
Vanguard Global Advisers, LLC109K$17.8MHeld
Vanguard Investments Australia, Ltd.105.8K$17.3MHeld
Driehaus Capital Management LLC105.4K$17.2M−$1.11MCut−$1.14M
NATIONAL BANK OF CANADA /FI/104.8K$17.1M−$1.1MCut−$1.79M
M&G PLC98.2K$16.1MNew
J. Safra Sarasin Holding AG93.2K$15.2M−$68.1KAdded$14.1M
Mirae Asset Global Investments Co., Ltd.92.1K$15.1M−$825.7KAdded$1.4M
EULAV Asset Management92K$15M−$852.1KAdded$946.6K
STOREBRAND ASSET MANAGEMENT AS90.8K$14.9M−$217KAdded$11.3M
NOMURA ASSET MANAGEMENT CO LTD89.7K$14.7M−$878.9KAdded$121.2K
Police & Firemen's Retirement System of New Jersey89.6K$14.7M−$937.2KCut−$848.6K
Mitsubishi UFJ Trust & Banking Corp84.2K$13.8M−$873.5KCut−$685.1K
Swedbank AB82.9K$13.6M−$626.5KAdded$3.19M
Asset Management One Co., Ltd.82.4K$13.5M−$1.03MCut−$789K
GUGGENHEIM CAPITAL LLC80K$13.1M−$841.8KCut−$1.24M
Andra AP-fonden78K$12.7M−$381.9KAdded$6.43M
Tredje AP-fonden76.6K$12.5MNew
STIFEL FINANCIAL CORP75.7K$12.4M−$728.6KAdded$328.4K
KLP KAPITALFORVALTNING AS74K$12.1M−$778.5KCut−$778.5K
Cinctive Capital Management LP73.1K$11.9M−$188.8KAdded$8.82M
State of New Jersey Common Pension Fund D72.9K$11.9M−$758.8KCut−$634.7K
MANUFACTURERS LIFE INSURANCE COMPANY, THE72.7K$11.9M−$768.1KCut−$8.8M
Creative Planning72.2K$11.8M−$741.7KCut−$464K
Walleye Capital LLC71.8K$11.7M−$166.4KAdded$8.99M
PARNASSUS INVESTMENTS, LLC69.5K$11.4M−$543.3KAdded$2.38M
Lansforsakringar Fondforvaltning AB (publ)68.5K$11.2MNew
FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND68.3K$11.2M−$531.3KAdded$2.39M
Assenagon Asset Management S.A.63.3K$10.3M−$665.5KCut−$8.25M
ESSEX INVESTMENT MANAGEMENT CO LLC62.7K$10.2M−$656.7KCut−$615.3K
BANK OF MONTREAL /CAN/62.6K$10.2M−$658.3KCut−$696.6K
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO61K$9.97M−$641.2KCut−$1M
Resona Asset Management Co.,Ltd.60.9K$9.87M−$747.5KCut−$658.6K
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main60.2K$9.84M−$355.3KAdded$3.96M
NISSAY ASSET MANAGEMENT CORP /JAPAN60K$9.82M−$606.6KCut−$217.8K
Tidal Investments LLC61.8K$9.7M−$362.2KAdded$5.99M
ARIZONA STATE RETIREMENT SYSTEM58K$9.48M−$609.4KCut−$606.2K
AGF MANAGEMENT LTD57.5K$9.4M−$604.5KCut−$844.1K
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND56.5K$9.24M−$594.7KCut−$2.12M
Schonfeld Strategic Advisors LLC56.1K$9.17MNew
Cullen/Frost Bankers, Inc.55.6K$9.09M−$2.69KAdded$9.04M
DNB Asset Management AS53.2K$8.69M−$430.5KAdded$1.57M
STRS OHIO52K$8.5M−$547.1KCut−$548.4K
Empowered Funds, LLC52K$8.5MNew
SIMON QUICK ADVISORS, LLC50.1K$8.19MNew
GF FUND MANAGEMENT CO. LTD.48.5K$7.93M−$444.2KAdded$580.9K
CIBC Asset Management Inc48.2K$7.88M−$507KCut−$554K
Alyeska Investment Group, L.P.48.1K$7.87M−$506.2KCut−$2.57M
XPONANCE LLC47.9K$7.82M−$452.8KAdded$333.7K
China Universal Asset Management Co., Ltd.47K$7.69M−$445.9KAdded$310.7K
Connor, Clark & Lunn Investment Management Ltd.46.2K$7.56MNew
NWAM LLC44.9K$7.34M$148.1KAdded$1.11M
Rakuten Investment Management, Inc.43.8K$7.19M−$251.2KAdded$3.59M
IFM Investors Pty Ltd42.7K$6.99M$6.56MAdded$6.98M
EFG International AG40.5K$6.63M−$230.3KAdded$2.82M
CANADA PENSION PLAN INVESTMENT BOARD39.9K$6.52M−$220.9KAdded$2.87M
Legato Capital Management LLC39.6K$6.47M−$416.1KCut−$494.8K
Daiwa Securities Group Inc.39.4K$6.45M$6.25MAdded$6.44M
Squarepoint Ops LLC39.3K$6.43M−$413.6KCut−$5.13M
B. Metzler seel. Sohn & Co. AG39.2K$6.42M−$49.8KAdded$5.59M
Erste Asset Management GmbH41.6K$6.38M−$957.7KCut−$2.37M
THORNBURG INVESTMENT MANAGEMENT INC38.3K$6.27M−$399.5KCut−$339.6K
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC36.9K$6.03M−$388KCut−$2.51M
JONES FINANCIAL COMPANIES LLLP41.4K$6.02M−$15.9KAdded$5.92M
Atle Fund Management AB97.4K$5.96M−$3.15MAdded$1.1M
Calamos Advisors LLC36.4K$5.95M−$338.3KAdded$351.5K
SILVERARC CAPITAL MANAGEMENT, LLC35.9K$5.86M−$377.1KCut−$6.54M
Quantinno Capital Management LP35.6K$5.81M−$205.6KAdded$2.41M
Korea Investment CORP35.4K$5.79M−$372.7KCut−$6.85M
ADAR1 Capital Management, LLC35.4K$5.79MNew
CenterBook Partners LP35.2K$5.76MNew
MCRAE CAPITAL MANAGEMENT INC35.1K$5.75M−$280.6KAdded$1.1M
Orion Porfolio Solutions, LLC34.6K$5.66M−$364.4KCut−$702.9K
KENNEDY CAPITAL MANAGEMENT LLC34.5K$5.65M−$337.2KAdded$67.9K
Cetera Investment Advisers34.4K$5.62M−$361.4KCut−$1.07M
ASSETMARK, INC34.3K$5.6M−$360.4KCut−$1.31M
Utah Retirement Systems34K$5.56M−$336.7KCut−$4.71K
VOLORIDGE INVESTMENT MANAGEMENT, LLC32.2K$5.26MNew
TEACHER RETIREMENT SYSTEM OF TEXAS30.4K$4.97M−$319.6KCut−$813.4K
Corient Private Wealth LLC30.2K$4.95M−$220KAdded$1.31M
BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp29.4K$4.81M−$309.3KCut−$1.72M
1832 Asset Management L.P.28.9K$4.73MNew
TORONTO DOMINION BANK28.9K$4.72M−$303.7KCut−$1.6M
GordonMD Global Investments LP28.6K$4.67M−$300.7KCut−$300.7K
KVP Capital Advisors, LP28.5K$4.66M−$299.8KCut−$299.8K
PROFUND ADVISORS LLC27.9K$4.57M−$292.9KCut−$277.7K
Compound Planning, Inc.27.9K$4.56M−$290.9KCut−$256.4K
Pathstone Holdings, LLC27.2K$4.46M−$283.5KCut−$235.3K
Exome Asset Management LLC26.7K$4.36MNew
NEXT CENTURY GROWTH INVESTORS LLC26.2K$4.28M−$213.6KAdded$745.6K
MML INVESTORS SERVICES, LLC24.8K$4.05M−$260.6KCut−$1.9M
HighVista Strategies LLC24.3K$3.98M−$255.8KCut−$2.88M
SHELTON CAPITAL MANAGEMENT24.2K$3.96M−$254.8KCut−$272.5K
Elo Mutual Pension Insurance Co24.1K$3.94M−$130.5KAdded$1.79M
Sanctuary Advisors, LLC24K$3.92M−$224.4KAdded$206.1K
ALLSTATE CORP23.9K$3.91M−$167KAdded$1.14M
MACKENZIE FINANCIAL CORP23.8K$3.89M−$221.1KAdded$130.6K
SummitTX Capital, L.P.23.2K$3.79M−$243.6KCut−$733.3K
BROWN ADVISORY INC22.9K$3.75M−$210.3KAdded$273.7K
Sumitomo Mitsui DS Asset Management Company, Ltd22.3K$3.65M−$234.6KCut−$234.6K
OP Asset Management Ltd22.2K$3.63M−$233.8KCut−$5.16M
Mariner, LLC22.1K$3.61M−$232.6KCut−$2.53M
Atria Investments, Inc21.8K$3.57M−$214.5KAdded$24.3K
NORDEA INVESTMENT MANAGEMENT AB22.2K$3.55M−$296.9KAdded$60.6K
ASR Vermogensbeheer N.V.21.5K$3.51M−$222.1KCut−$158.6K
Cerity Partners LLC21.5K$3.51M−$204.1KAdded$136.8K
Robeco Institutional Asset Management B.V.20.8K$3.4M−$17.6KAdded$3.11M
SECTORAL ASSET MANAGEMENT INC19.7K$3.38M−$24KAdded$1.43M
Renaissance Technologies20.3K$3.32M−$213.6KCut−$1.19M
BAMCO INC /NY/20K$3.27M−$210.4KCut−$3.38M
Silvant Capital Management LLC19.9K$3.25M−$206KCut−$153.5K
NOMURA HOLDINGS INC19K$3.11M−$200.4KCut−$2.19M
OSAIC HOLDINGS, INC.18.7K$3.05M−$196.3KCut−$304K
Swiss Life Asset Management Ltd18.5K$3.03M−$147.3KAdded$588.8K

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.