13F

Stock

Boston Scientific Corp

BSX · held by 1,777 managers

Reported value

$124.3B

Holders

1,777

+12 new · −5 exited

Holders’ est. mark

−$69.2M

Price effect on 13 books still in the name

Largest holder

$13.3B

Vanguard

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Vanguard139.7M$13.3BHeld
BlackRock, Inc.136M$13BHeld
Fidelity97.4M$9.29BHeld
State Street65.8M$6.28BHeld
GEODE CAPITAL MANAGEMENT, LLC32.4M$3.07BHeld
PRIMECAP MANAGEMENT CO/CA/31.1M$2.97BHeld
Capital World Investors27.2M$2.59BHeld
JPMORGAN CHASE & CO25.4M$2.42BHeld
BANK OF AMERICA CORP /DE/25.1M$2.39B−$57.3MCut−$911.9M
NORGES BANK23.1M$2.2B−$110.4MAdded$184.9M
MORGAN STANLEY23M$2.19B−$47.2MAdded$167M
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main18.5M$1.77B$214.2MCut−$55.5M
GOLDMAN SACHS GROUP INC16.6M$1.58BHeld
UBS Group AG14.9M$1.42BHeld
NORTHERN TRUST CORP13.9M$1.33BHeld
Invesco Ltd.13.3M$1.27BHeld
JANUS HENDERSON GROUP PLC12.6M$1.2BHeld
Amundi12.4M$1.18BHeld
D. E. Shaw & Co., Inc.11.2M$1.07BHeld
Bank of New York Mellon Corp11.2M$1.07BHeld
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP11M$1.05BHeld
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC10.9M$1.04BHeld
Legal & General Group Plc10.9M$1.04BHeld
MILLENNIUM MANAGEMENT LLC11.3M$1.03BHeld
WELLINGTON MANAGEMENT GROUP LLP9.71M$925.8MHeld
Nuveen, LLC9.37M$893.6MHeld
Fisher Asset Management, LLC9.14M$871.3MHeld
MASSACHUSETTS FINANCIAL SERVICES CO /MA/9.09M$866.3MHeld
CHARLES SCHWAB INVESTMENT MANAGEMENT INC8.95M$853MHeld
SCHRODER INVESTMENT MANAGEMENT GROUP8.35M$796.1MHeld
PARNASSUS INVESTMENTS, LLC7.9M$753.2MHeld
EDGEWOOD MANAGEMENT LLC7.8M$744MHeld
FARALLON CAPITAL MANAGEMENT LLC7.44M$709.4M−$10.8MAdded$246M
Capital Research Global Investors7.08M$675.5MHeld
CANADA PENSION PLAN INVESTMENT BOARD6.86M$654.3MHeld
DEUTSCHE BANK AG\6.75M$643.4MHeld
AMERIPRISE FINANCIAL INC6.43M$613.2MHeld
TWO SIGMA ADVISERS, LP6.3M$600.6MHeld
DIMENSIONAL FUND ADVISORS LP5.74M$546.9MHeld
FRANKLIN RESOURCES INC5.68M$541.2MHeld
ROYAL BANK OF CANADA5.55M$529.3MHeld
Qube Research & Technologies Ltd5.51M$525MHeld
JENNISON ASSOCIATES LLC5.47M$521.4MHeld
Ninety One UK Ltd5.44M$519.1MHeld
Egerton Capital (UK) LLP5.39M$513.5MHeld
Citadel4.78M$455.4MHeld
FIL Ltd4.76M$453.7MHeld
AMERICAN CENTURY COMPANIES INC4.6M$438.8MHeld
Holocene Advisors, LP4.47M$426.3MHeld
Man Group plc4.39M$418.8MHeld
BARCLAYS PLC4.36M$415.8M−$9.94MCut−$25.5M
Assenagon Asset Management S.A.4.31M$410.6MHeld
Pictet Asset Management Holding SA4.3M$410MHeld
WELLS FARGO & COMPANY/MN4.14M$394.5MHeld
Swiss National Bank4.06M$387.2MHeld
POLEN CAPITAL MANAGEMENT LLC4.02M$383.3MHeld
NEUBERGER BERMAN GROUP LLC4.01M$382.4MHeld
LAZARD ASSET MANAGEMENT LLC3.91M$372.8MHeld
JANE STREET GROUP, LLC3.79M$361.7MHeld
Vontobel Holding Ltd.3.76M$358.9MHeld
National Pension Service3.76M$358.7MHeld
HSBC HOLDINGS PLC3.61M$344.7MHeld
RAYMOND JAMES FINANCIAL INC3.53M$336.9MHeld
Sumitomo Mitsui Trust Group, Inc.3.46M$329.7MHeld
Swedbank AB3.43M$327MHeld
WORLDQUANT MILLENNIUM ADVISORS LLC3.39M$323MHeld
BNP PARIBAS FINANCIAL MARKETS3.29M$314.1MHeld
Mitsubishi UFJ Asset Management Co., Ltd.3.11M$294.6MHeld
Squarepoint Ops LLC3.04M$289.4MHeld
California Public Employees Retirement System3.01M$287.2MHeld
Robeco Institutional Asset Management B.V.2.99M$285.4MHeld
MARSHALL WACE, LLP2.96M$282MHeld
MAVERICK CAPITAL LTD2.94M$280.7MHeld
Skandinaviska Enskilda Banken AB (publ)2.84M$270.3MHeld
ALLIANCEBERNSTEIN L.P.2.8M$267MHeld
Rathbones Group PLC2.76M$263.1MHeld
Alecta Tjanstepension Omsesidigt2.74M$261.6M−$6.17MCut−$6.17M
RHUMBLINE ADVISERS2.7M$257.2MHeld
Alphinity Investment Management Pty Ltd2.65M$252.9MHeld
Aberdeen Group plc2.64M$252.1MHeld
ENVESTNET ASSET MANAGEMENT INC2.61M$248.6MHeld
Artisan Partners Limited Partnership2.57M$245MHeld
SurgoCap Partners LP2.56M$244MHeld
Viking Global2.51M$239.3MHeld
Balyasny Asset Management L.P.2.48M$236.6MHeld
TWO SIGMA INVESTMENTS, LP2.47M$235.6MHeld
Point72 Asset Management, L.P.2.43M$232.1MHeld
ORBIMED ADVISORS LLC2.42M$230.7MHeld
Renaissance Technologies2.38M$227.2MHeld
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2.36M$224.8MHeld
SEI INVESTMENTS CO2.21M$210.5MHeld
1832 Asset Management L.P.2.2M$209.9MHeld
Unisphere Establishment2.18M$207.5MHeld
CREDIT AGRICOLE S A2.17M$207.3MHeld
VOYA INVESTMENT MANAGEMENT LLC2.17M$207MHeld
Allspring Global Investments Holdings, LLC2.17M$205.8MHeld
Employees Provident Fund Board2.13M$203.5M−$4.87MCut−$4.87M
STIFEL FINANCIAL CORP2.11M$201.6MHeld
ADAGE CAPITAL PARTNERS GP, L.L.C.2.08M$198.6MHeld
Temasek Holdings (Private) Ltd2.08M$198.5MHeld
MACKENZIE FINANCIAL CORP2.07M$198.1MHeld
Walleye Capital LLC2.04M$194.6MHeld
BANK OF MONTREAL /CAN/2.04M$194.5MHeld
Allianz Asset Management GmbH2M$190.7MHeld
Danica Pension, Livsforsikringsaktieselskab1.99M$190.2M−$20.6MAdded$6.95M
BANK OF NOVA SCOTIA1.99M$190.1MHeld
Russell Investments Group, Ltd.1.95M$185.7MHeld
FIRST MANHATTAN CO. LLC.1.88M$179.4MHeld
TD Asset Management Inc1.87M$177.9MHeld
NEW YORK STATE COMMON RETIREMENT FUND1.81M$172.5MHeld
VOLORIDGE INVESTMENT MANAGEMENT, LLC1.8M$172MHeld
GREAT LAKES ADVISORS, LLC1.78M$169.4MHeld
Zurcher Kantonalbank (Zurich Cantonalbank)1.73M$165MHeld
Impax Asset Management Group plc1.72M$164.4MHeld
LPL Financial LLC1.71M$162.7MHeld
AGF MANAGEMENT LTD1.69M$160.9MHeld
FEDERATED HERMES, INC.1.68M$159.9MHeld
PRINCIPAL FINANCIAL GROUP INC1.67M$159.4MHeld
CONGRESS ASSET MANAGEMENT CO1.65M$157.3MHeld
AXIOM INVESTORS LLC /DE1.64M$156.5MHeld
Ilex Capital Partners (UK) LLP1.6M$152.6MHeld
PRUDENTIAL FINANCIAL INC1.58M$151.1MHeld
Ensign Peak Advisors, Inc1.58M$150.4MHeld
Bellevue Group AG1.56M$148.7MHeld
PANAGORA ASSET MANAGEMENT INC1.49M$142MHeld
AVIVA PLC1.49M$141.7MHeld
Caisse de depot et placement du Quebec1.45M$137.9MHeld
TCW GROUP INC1.43M$136.3MHeld
HUNTINGTON NATIONAL BANK1.43M$136.2MHeld
STOREBRAND ASSET MANAGEMENT AS1.42M$135.5MHeld
Korea Investment CORP1.42M$135.3MHeld
PUBLIC SECTOR PENSION INVESTMENT BOARD1.42M$135MHeld
Universal- Beteiligungs- und Servicegesellschaft mbH1.38M$131.8MHeld
Mirova US LLC1.37M$130.6MHeld
GROUPAMA ASSET MANAGMENT1.37M$130.3M−$3.04MAdded$244.3K
CITIGROUP INC1.36M$129.3MHeld
Freestone Grove Partners LP1.33M$126.6MHeld
Eurizon Capital SGR S.p.A.1.3M$123.9MHeld
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM1.29M$122.9MHeld
NATIONAL BANK OF CANADA /FI/1.28M$121.7MHeld
Cerity Partners LLC1.27M$120.7MHeld
Munro Partners1.26M$119.8MHeld
AustralianSuper Pty Ltd1.24M$118MHeld
CI INVESTMENTS INC.1.22M$116.4MHeld
Banque Transatlantique SA1.21M$115.5MHeld
PNC Financial Services Group, Inc.1.19M$113.3MHeld
CAPITAL FUND MANAGEMENT S.A.1.15M$109.8MHeld
Tredje AP-fonden1.15M$109.4MHeld
Candriam S.C.A.1.13M$107.7MHeld
Icahn Capital1.1M$104.7MHeld
FRED ALGER MANAGEMENT, LLC1.1M$104.6MHeld
CIBC Private Wealth Group LLC1.1M$104.5MHeld
GILDER GAGNON HOWE & CO LLC1.08M$102.7MHeld
MANUFACTURERS LIFE INSURANCE COMPANY, THE1.03M$98.2MHeld
TORONTO DOMINION BANK1.02M$97.6MHeld
PERCEPTIVE ADVISORS LLC979K$93.3MHeld
AMF Tjanstepension AB953K$90.9MHeld
PFA Pension, Forsikringsaktieselskab926.4K$88.9MHeld
NOMURA ASSET MANAGEMENT CO LTD906.9K$86.5MHeld
STRS OHIO891.5K$85MHeld
Asset Management One Co., Ltd.879.1K$84.1MHeld
Calamos Advisors LLC871.7K$83.1MHeld
DANSKE BANK A/S865.1K$82.5M−$10.4MCut−$34.3M
APG Asset Management N.V.989.6K$80.3MHeld
Connor, Clark & Lunn Investment Management Ltd.818.9K$78.1MHeld
MILFORD FUNDS LTD815.3K$77.7MHeld
SANDS CAPITAL MANAGEMENT, LLC805.2K$76.8MHeld
Lansforsakringar Fondforvaltning AB (publ)791.2K$75.4MHeld
Woodline Partners LP779.9K$74.4MHeld
STATE OF WISCONSIN INVESTMENT BOARD767.9K$73.2MHeld
UniSuper Management Pty Ltd760.7K$72.5MHeld
Chevy Chase Trust Holdings, LLC752.1K$71.7MHeld
Mitsubishi UFJ Trust & Banking Corp747.1K$71.2MHeld
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO735.9K$70.2MHeld
Clearbridge Investments, LLC733.2K$69.9MHeld
TUDOR INVESTMENT CORP ET AL732.8K$69.9M−$1.51MAdded$5.42M
Engineers Gate Manager LP706.9K$67.4MHeld
ABN AMRO INVESTMENT SOLUTIONS687K$65.5MHeld
Quantinno Capital Management LP680K$64.8MHeld
ROYAL LONDON ASSET MANAGEMENT LTD673.3K$64.2MHeld
Federation des caisses Desjardins du Quebec660.5K$63MHeld
ATALANTA SOSNOFF CAPITAL, LLC652K$62.2MHeld
NICHOLAS COMPANY, INC.627.2K$59.8MHeld
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO626.5K$59.7MHeld
KLP KAPITALFORVALTNING AS610.6K$58.2MHeld
Meridiem Capital Partners LP608.8K$58MHeld
Schonfeld Strategic Advisors LLC599.3K$57.1MHeld
Fullerton Fund Management Co Ltd.598.2K$57MHeld
Harvest Portfolios Group Inc.597.3K$57MHeld
Rockefeller Capital Management L.P.595.9K$56.8MHeld
Chicago Capital, LLC590.9K$56.3MHeld
COMPASS CAPITAL MANAGEMENT, INC584.1K$55.7MHeld
Focus Partners Wealth583.2K$55.6MHeld
GATEWAY INVESTMENT ADVISERS LLC580.9K$55.4MHeld
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND578.6K$55.2MHeld
ABN AMRO Bank N.V.573.2K$54.6MHeld
ZWJ INVESTMENT COUNSEL INC571K$54.4MHeld
ODDO BHF ASSET MANAGEMENT SAS567.9K$54.1MHeld
E. Ohman J:or Asset Management AB564.5K$53.8MHeld
SUSQUEHANNA INTERNATIONAL GROUP, LLP556K$53MHeld
NATIXIS554K$52.8MHeld
TEACHER RETIREMENT SYSTEM OF TEXAS552.7K$52.7MHeld
Homestead Advisers Corp547.1K$52.2MHeld
Saudi Central Bank539.4K$51.4MHeld
BSN CAPITAL PARTNERS Ltd500K$50.1MHeld
Groupe la Francaise525.4K$49.9MHeld
Tri Locum Partners LP520.5K$49.6MHeld
CIBC WORLD MARKETS CORP506.2K$48.3MHeld
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.505.3K$48.2MHeld
State of New Jersey Common Pension Fund D504.5K$48.1MHeld
Parkman Healthcare Partners LLC500.5K$47.7MHeld
BRADLEY FOSTER & SARGENT INC/CT492.9K$47MHeld
Hudson Bay Capital Management LP484K$46.1M−$1.1MCut−$1.29M
VICTORY CAPITAL MANAGEMENT INC481.3K$45.9MHeld
ASR Vermogensbeheer N.V.477.3K$45.5MHeld
Bank Julius Baer & Co. Ltd, Zurich469.3K$44.8MHeld
State of Tennessee, Department of Treasury475.9K$44.5MHeld
LOS ANGELES CAPITAL MANAGEMENT LLC436.2K$43.9MHeld
ANCHOR CAPITAL ADVISORS LLC459.3K$43.8MHeld
Resona Asset Management Co.,Ltd.454.9K$43.4MHeld
Cetera Investment Advisers450.1K$42.9MHeld
Jump Financial, LLC449.3K$42.8MHeld
TOCQUEVILLE ASSET MANAGEMENT L.P.443.7K$42.3MHeld
LBP AM SA434.4K$41.4MHeld
Mariner, LLC431.2K$41.1MHeld
Rhenman & Partners Asset Management AB431.2K$41.1MHeld
OSAIC HOLDINGS, INC.428.8K$40.9MHeld
ARIZONA STATE RETIREMENT SYSTEM420.9K$40.1MHeld
Iron Triangle Partners LP420.8K$40.1MHeld
CAPITAL INTERNATIONAL SARL415.7K$39.6MHeld
Rock Springs Capital Management LP399.1K$38MHeld
Czech National Bank390.9K$37.3MHeld
STATE OF MICHIGAN RETIREMENT SYSTEM388.1K$37MHeld
FORSTA AP-FONDEN375.2K$35.8MHeld
DNB Asset Management AS374.6K$35.7MHeld
Associated Banc-Corp373.8K$35.6MHeld
NISA INVESTMENT ADVISORS, LLC372.8K$35.5MHeld
Fisher Funds Management LTD370.6K$35.5MHeld
PICTON MAHONEY ASSET MANAGEMENT369.9K$35.3MHeld
MetLife Investment Management, LLC367.5K$35MHeld
CIBC Asset Management Inc366K$34.9MHeld
Catalio Capital Management, LP360.4K$34.4MHeld
NS Partners Ltd359.3K$34.3MHeld
SUVRETTA CAPITAL MANAGEMENT, LLC353.6K$33.7MHeld
Mediolanum International Funds Ltd350.8K$33.7MHeld
Cullen/Frost Bankers, Inc.352.7K$33.6MHeld
US BANCORP \DE\349.7K$33.3MHeld
Generate Investment Management Ltd348.9K$33.3MHeld
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS344.8K$32.9MHeld
SHELTON CAPITAL MANAGEMENT340.1K$32.4MHeld

Who left

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.