Boston Scientific Corp
BSX- Exchange
- NYSE
- Industry
- Surgical & Medical Instruments & Apparatus
- SEC CIK
- 0000885725
In the last 90 days, Boston Scientific Corp insiders filed 5 open-market purchases and 0 sales; 1,486 institutions reported holding it in 13F filings for Q2 2026, worth $57.3B in total; Maverick Capital is the only superinvestor holding it.
13F holders, Q1 2026
Institutional positions in Boston Scientific Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 1,683
- −83 vs. Q4 2025
- Shares held
- 1.34B
- +142.6M (+11.9%) vs. Q4 2025
- Total value
- $84.2B
- −$30.0B (−26.2%) vs. Q4 2025
- New holders
- 196
- 678 more added
- Sold out
- 279
- 638 more reduced
28 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting BSX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,486 | $57.3B |
| Q1 2026 | 1,683 | $84.2B |
| Q4 2025 | 1,794 | $130.0B |
| Q3 2025 | 1,715 | $131.1B |
| Q2 2025 | 1,694 | $145.4B |
| Q1 2025 | 1,649 | $135.2B |
| Q4 2024 | 1,520 | $119.8B |
| Q3 2024 | 1,403 | $111.0B |
| Q2 2024 | 1,325 | $102.2B |
| Q1 2024 | 1,227 | $90.9B |
| Q4 2023 | 1,151 | $77.3B |
| Q3 2023 | 1,060 | $70.6B |
| Q2 2023 | 1,069 | $71.6B |
| Q1 2023 | 1,000 | $65.7B |
| Q4 2022 | 930 | $60.5B |
| Q3 2022 | 866 | $50.9B |
| Q2 2022 | 882 | $48.6B |
| Q1 2022 | 909 | $57.0B |
| Q4 2021 | 892 | $54.8B |
| Q3 2021 | 884 | $56.6B |
| Q2 2021 | 873 | $55.3B |
| Q1 2021 | 836 | $49.9B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Boston Scientific Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Public Sector Pension Investment Board | 2,077,623 | $130.4M | 0.41% | +661,315+46.7% | Added |
| SEB Asset Management AB | 2,076,524 | $130.3M | 0.56% | +2,076,524 | New |
| Credit Agricole S A | 2,021,577 | $126.9M | 0.41% | −152,420−7.0% | Reduced |
| Stifel Financial Corp | 1,978,011 | $124.1M | 0.11% | −136,486−6.5% | Reduced |
| CIBC Bancorp USA Inc. | 1,941,425 | $121.9M | 0.16% | +1,941,425 | New |
| DekaBank Deutsche Girozentrale | 1,844,793 | $118.0M | 0.19% | 00.0% | Unchanged |
| Great Lakes Advisors, LLC | 1,878,772 | $117.9M | 0.98% | +101,996+5.7% | Added |
| Natixis Advisors, L.P. | 1,868,044 | $117.2M | 0.16% | −340,596−15.4% | Reduced |
| New York State Common Retirement Fund | 1,812,953 | $113.8M | 0.16% | +4,000+0.2% | Added |
| TD Asset Management Inc | 1,799,116 | $112.9M | 0.09% | −66,285−3.6% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,791,149 | $112.4M | 0.24% | +60,784+3.5% | Added |
| Public Employees Retirement Association of Colorado | 1,701,806 | $106.8M | 0.42% | +618,254+57.1% | Added |
| Jones Financial Companies LLLP | 1,531,937 | $105.9M | 0.05% | +1,487,392+3,339.1% | Added |
| Envestnet Asset Management Inc | 1,686,819 | $105.8M | 0.03% | −920,221−35.3% | Reduced |
| Principal Financial Group Inc | 1,686,453 | $105.8M | 0.06% | +14,795+0.9% | Added |
| Alphinity Investment Management Pty Ltd | 1,673,285 | $105.0M | 1.85% | −979,237−36.9% | Reduced |
| Capital Fund Management S.A. | 1,665,947 | $104.5M | 0.94% | +513,899+44.6% | Added |
| Congress Asset Management Co | 1,629,485 | $102.3M | 0.73% | −20,473−1.2% | Reduced |
| Squarepoint Ops LLC | 1,589,914 | $99.8M | 0.21% | −1,445,374−47.6% | Reduced |
| Citigroup Inc | 1,576,640 | $98.9M | 0.06% | +220,141+16.2% | Added |
| Veritas Investment Partners (UK) Ltd. | 1,558,014 | $97.7M | 2.50% | +1,558,014 | New |
| Phoenix Holdings Ltd. | 1,550,372 | $97.3M | 0.92% | +1,485,404+2,286.4% | Added |
| Prudential Financial Inc | 1,548,562 | $97.2M | 0.12% | −35,873−2.3% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 1,541,012 | $96.7M | 0.17% | +159,346+11.5% | Added |
| TCW Group Inc | 1,536,210 | $96.4M | 0.73% | +106,468+7.4% | Added |
| Acadian Asset Management LLC | 1,495,140 | $93.8M | 0.13% | +413,867+38.3% | Added |
| Aviva PLC | 1,488,608 | $93.4M | 0.16% | +2,896+0.2% | Added |
| Caisse de Depot Et Placement du Quebec | 1,485,451 | $93.2M | 0.15% | +39,359+2.7% | Added |
| Bellevue Group AG | 1,466,894 | $92.0M | 2.19% | −92,712−5.9% | Reduced |
| Fred Alger Management, LLC | 1,454,619 | $91.3M | 0.40% | +357,944+32.6% | Added |
| Huntington National Bank | 1,405,328 | $88.2M | 0.49% | −22,806−1.6% | Reduced |
| Groupama Asset Managment | 1,375,261 | $86.3M | 1.26% | +8,356+0.6% | Added |
| Impax Asset Management Group plc | 1,359,572 | $85.3M | 0.59% | −364,355−21.1% | Reduced |
| Balyasny Asset Management LLC | 1,356,133 | $85.1M | 0.17% | −1,125,616−45.4% | Reduced |
| Eurizon Capital SGR S.p.A. | 1,348,483 | $84.8M | 0.26% | +50,550+3.9% | Added |
| Menora Mivtachim Holdings Ltd. | 1,333,500 | $83.7M | 0.40% | +1,333,500 | New |
| Bank of Montreal | 1,324,527 | $83.1M | 0.04% | −715,839−35.1% | Reduced |
| Nordea Investment Management AB | 1,330,037 | $82.1M | 0.08% | +1,182,755+803.1% | Added |
| State Board of Administration of Florida Retirement System | 1,288,698 | $80.9M | 0.15% | 00.0% | Unchanged |
| Cerity Partners LLC | 1,263,755 | $79.3M | 0.11% | −1,769−0.1% | Reduced |
| Candriam Luxembourg S.C.A. | 1,261,461 | $79.2M | 0.41% | +131,623+11.6% | Added |
| National Bank of Canada | 1,260,894 | $79.1M | 0.08% | −15,341−1.2% | Reduced |
| Swedbank AB | 1,259,158 | $79.0M | 0.08% | −2,170,686−63.3% | Reduced |
| New York State Teachers Retirement System | 1,205,249 | $75.6M | 0.15% | −3,002−0.2% | Reduced |
| Storebrand Asset Management AS | 1,196,979 | $75.1M | 0.22% | −224,233−15.8% | Reduced |
| The PNC Financial Services Group, Inc. | 1,159,624 | $72.8M | 0.04% | −28,392−2.4% | Reduced |
| Korea Investment CORP | 1,134,530 | $71.2M | 0.15% | −284,721−20.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 1,105,515 | $69.4M | 0.56% | +506,234+84.5% | Added |
| Great West Life Assurance Co | 1,085,764 | $68.3M | 0.12% | −73,332−6.3% | Reduced |
| Allspring Global Investments Holdings, LLC | 1,093,483 | $67.8M | 0.11% | −1,079,916−49.7% | Reduced |
| Voloridge Investment Management, LLC | 1,078,109 | $67.7M | 0.27% | −725,804−40.2% | Reduced |
| HRT Financial LP | 1,051,996 | $66.0M | 0.16% | +720,340+217.2% | Added |
| Federated Hermes, Inc. | 1,040,857 | $65.3M | 0.11% | −636,029−37.9% | Reduced |
| Susquehanna International Group, LLP | 1,033,109 | $64.8M | 0.08% | +477,139+85.8% | Added |
| SEI Investments Co | 1,021,347 | $64.1M | 0.06% | −1,185,973−53.7% | Reduced |
| Nomura Asset Management Co Ltd | 1,015,421 | $63.7M | 0.16% | +108,521+12.0% | Added |
| Federation des caisses Desjardins du Quebec | 998,249 | $62.6M | 0.23% | +337,704+51.1% | Added |
| Danica Pension, Livsforsikringsaktieselskab | 970,286 | $60.9M | 1.14% | −1,024,443−51.4% | Reduced |
| Mackenzie Financial Corp | 959,867 | $60.2M | 0.07% | −1,107,981−53.6% | Reduced |
| Longaeva Partners L.P. | 957,306 | $60.1M | 2.89% | +957,306 | New |
| BSN Capital Partners Ltd | 629,000 | $60.1M | 1.53% | +129,000+25.8% | Added |
| AMF Pensionsforsakring AB | 951,982 | $59.7M | 0.40% | −968−0.1% | Reduced |
| RE Advisers Corp | 942,062 | $59.1M | 1.59% | +395,000+72.2% | Added |
| SG Americas Securities, LLC | 931,155 | $58.4M | 0.06% | +544,637+140.9% | Added |
| PFA Pension, Forsikringsaktieselskab | 925,491 | $58.1M | 0.17% | −888−0.1% | Reduced |
| Banque Pictet & Cie SA | 921,164 | $57.8M | 0.67% | +650,293+240.1% | Added |
| Harvest Portfolios Group Inc. | 916,981 | $57.5M | 0.95% | +319,640+53.5% | Added |
| Jennison Associates LLC | 897,775 | $56.3M | 0.04% | −4,570,520−83.6% | Reduced |
| Abn Amro Investment Solutions | 894,310 | $56.1M | 0.73% | +207,303+30.2% | Added |
| Lansforsakringar Fondforvaltning AB (publ) | 893,749 | $56.1M | 0.29% | +102,573+13.0% | Added |
| Fisher Funds Management LTD | 860,964 | $54.0M | 1.59% | +490,387+132.3% | Added |
| Northwestern Mutual Wealth Management Co | 854,345 | $53.6M | 0.03% | +118,493+16.1% | Added |
| LPL Financial LLC | 848,038 | $53.2M | 0.01% | −857,789−50.3% | Reduced |
| Walleye Capital LLC | 835,952 | $52.5M | 0.32% | −1,205,462−59.1% | Reduced |
| Danske Bank A/S | 834,747 | $52.4M | 0.13% | −30,315−3.5% | Reduced |
| State of Wisconsin Investment Board | 833,955 | $52.3M | 0.12% | +66,101+8.6% | Added |
| Panagora Asset Management Inc | 822,114 | $51.6M | 0.19% | −667,070−44.8% | Reduced |
| Calamos Advisors LLC | 817,686 | $51.3M | 0.20% | −53,971−6.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 807,369 | $50.7M | 0.12% | −11,547−1.4% | Reduced |
| Banque Transatlantique SA | 798,907 | $50.2M | 1.20% | −412,424−34.0% | Reduced |
| Vestal Point Capital, LP | 800,000 | $50.2M | 1.40% | +800,000 | New |
| Prosight Management, LP | 795,547 | $49.9M | 8.19% | +585,547+278.8% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 789,092 | $49.5M | 0.08% | +210,489+36.4% | Added |
| STRS Ohio | 781,999 | $49.1M | 0.19% | −109,496−12.3% | Reduced |
| Asset Management One Co.,Ltd. | 778,376 | $48.8M | 0.14% | −100,729−11.5% | Reduced |
| APG Asset Management N.V. | 896,449 | $48.8M | 0.15% | −93,130−9.4% | Reduced |
| Nicholas Company, Inc. | 741,274 | $46.5M | 0.91% | +114,116+18.2% | Added |
| Vanguard Investments Australia, Ltd. | 737,743 | $46.3M | 0.13% | +737,743 | New |
| Sands Capital Management, LLC | 736,109 | $46.2M | 0.18% | −69,055−8.6% | Reduced |
| Edmond de Rothschild Holding S.A. | 734,725 | $46.1M | 0.67% | +685,813+1,402.1% | Added |
| Chevy Chase Trust Holdings, Inc. | 733,131 | $46.0M | 0.13% | −18,976−2.5% | Reduced |
| UniSuper Management Pty Ltd | 719,670 | $45.2M | 0.30% | −41,014−5.4% | Reduced |
| Rockefeller Capital Management L.P. | 711,941 | $44.7M | 0.08% | +116,003+19.5% | Added |
| Compass Capital Management, Inc | 710,874 | $44.6M | 2.69% | +126,806+21.7% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 705,994 | $44.3M | 0.11% | −41,152−5.5% | Reduced |
| ZWJ Investment Counsel Inc | 704,102 | $44.2M | 1.59% | +133,091+23.3% | Added |
| Ci Investments Inc. | 703,393 | $44.1M | 0.21% | −517,759−42.4% | Reduced |
| Tocqueville Asset Management L.P. | 678,172 | $42.6M | 0.63% | +234,444+52.8% | Added |
| Employees Retirement System of Texas | 671,695 | $42.1M | 0.37% | −16,056−2.3% | Reduced |
| Quadrature Capital Ltd | 670,091 | $42.0M | 0.50% | +670,091 | New |