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; 1,487 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
- −82 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
- 278
- 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 | 1,487 | $57.3B |
| Q1 2026 | 1,683 | $84.2B |
| Q4 2025 | 1,793 | $130.0B |
| Q3 2025 | 1,714 | $131.1B |
| Q2 2025 | 1,693 | $145.4B |
| Q1 2025 | 1,648 | $135.2B |
| Q4 2024 | 1,519 | $119.8B |
| Q3 2024 | 1,402 | $111.0B |
| Q2 2024 | 1,324 | $102.2B |
| Q1 2024 | 1,226 | $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 |
|---|---|---|---|---|---|
| Oddo BHF Asset Management SAS | 327,138 | $20.5M | 0.81% | −240,766−42.4% | Reduced |
| Whittier Trust Co | 328,226 | $20.5M | 0.23% | +322,161+5,311.8% | Added |
| MAI Capital Management | 330,209 | $20.7M | 0.12% | +168,770+104.5% | Added |
| Eastern Bank | 331,456 | $20.8M | 0.36% | +50,829+18.1% | Added |
| IFM Investors Pty Ltd | 332,339 | $20.9M | 0.17% | +8,151+2.5% | Added |
| Sumitomo Mitsui Financial Group, Inc. | 334,764 | $21.0M | 0.43% | +64,889+24.0% | Added |
| La Banque Postale Asset Management SA | 337,335 | $21.2M | 0.29% | −97,058−22.3% | Reduced |
| Cullen/Frost Bankers, Inc. | 339,661 | $21.3M | 0.24% | −13,005−3.7% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 345,459 | $21.7M | 0.11% | +635+0.2% | Added |
| Braidwell LP | 346,467 | $21.7M | 0.73% | +346,467 | New |
| Groupe la Francaise | 346,901 | $21.9M | 0.31% | −178,527−34.0% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 349,519 | $21.9M | 0.06% | +28,353+8.8% | Added |
| MetLife Investment Management | 357,894 | $22.5M | 0.11% | −9,647−2.6% | Reduced |
| NS Partners Ltd | 358,580 | $22.5M | 1.01% | −676−0.2% | Reduced |
| Daiwa Securities Group Inc. | 369,351 | $23.2M | 0.07% | +14,052+4.0% | Added |
| FORA Capital, LLC | 370,934 | $23.3M | 1.71% | +359,135+3,043.8% | Added |
| CIBC Asset Management Inc | 371,626 | $23.3M | 0.06% | +5,659+1.5% | Added |
| Caption Management, LLC | 374,400 | $23.5M | 1.12% | +283,400+311.4% | Added |
| Trexquant Investment LP | 385,491 | $24.2M | 0.17% | +67,145+21.1% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 387,252 | $24.3M | 0.56% | −2,447,803−86.3% | Reduced |
| State of Michigan Retirement System | 387,408 | $24.3M | 0.13% | −700−0.2% | Reduced |
| Border to Coast Pensions Partnership Ltd | 386,715 | $24.3M | 0.41% | +386,715 | New |
| Advisor Group Holdings, Inc. | 393,586 | $24.7M | 0.04% | −35,170−8.2% | Reduced |
| Tredje AP-fonden | 396,064 | $24.9M | 0.14% | −750,825−65.5% | Reduced |
| Creative Planning | 397,852 | $25.0M | 0.02% | +79,480+25.0% | Added |
| Atalanta Sosnoff Capital, LLC | 402,714 | $25.3M | 0.54% | −249,281−38.2% | Reduced |
| Czech National Bank | 403,894 | $25.3M | 0.17% | +12,997+3.3% | Added |
| Arizona State Retirement System | 406,216 | $25.5M | 0.15% | −14,715−3.5% | Reduced |
| Colony Group, LLC | 411,492 | $25.9M | 0.03% | −171,753−29.4% | Reduced |
| Voya Investment Management LLC | 422,418 | $26.5M | 0.03% | −1,748,264−80.5% | Reduced |
| DKRT Investments Corp. | 435,000 | $27.3M | 6.92% | +435,000 | New |
| Teacher Retirement System of Texas | 435,798 | $27.3M | 0.11% | −116,868−21.1% | Reduced |
| ING Groep NV | 438,266 | $27.5M | 0.17% | +292,042+199.7% | Added |
| ABN AMRO Bank N.V. | 438,340 | $27.7M | 0.30% | −134,842−23.5% | Reduced |
| Osterweis Capital Management Inc | 442,192 | $27.7M | 1.43% | +172,712+64.1% | Added |
| Toronto Dominion Bank | 448,198 | $28.1M | 0.05% | −575,853−56.2% | Reduced |
| Parkman Healthcare Partners LLC | 448,768 | $28.2M | 2.92% | −51,761−10.3% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 450,271 | $28.3M | 0.54% | +387,819+621.0% | Added |
| Fisher Asset Management, LLC | 450,603 | $28.3M | 0.01% | −8,687,613−95.1% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 461,370 | $29.0M | 0.16% | +176,800+62.1% | Added |
| Anchor Capital Advisors LLC | 463,696 | $29.1M | 0.83% | +4,399+1.0% | Added |
| Resona Asset Management Co.,Ltd. | 464,125 | $29.1M | 0.15% | +9,180+2.0% | Added |
| Ofi Invest Asset Management | 538,807 | $29.4M | 0.39% | +204,565+61.2% | Added |
| Cetera Investment Advisers | 473,400 | $29.7M | 0.03% | +23,257+5.2% | Added |
| Associated Banc-Corp | 480,358 | $30.1M | 0.80% | +106,526+28.5% | Added |
| Gotham Asset Management, LLC | 482,978 | $30.3M | 0.09% | +323,810+203.4% | Added |
| ASR Vermogensbeheer N.V. | 483,854 | $30.4M | 0.36% | +6,526+1.4% | Added |
| Hudson Bay Capital Management LP | 484,000 | $30.4M | 0.18% | 00.0% | Unchanged |
| United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund | 489,571 | $30.7M | 0.58% | +381,683+353.8% | Added |
| Aquatic Capital Management LLC | 490,622 | $30.8M | 0.88% | +456,434+1,335.1% | Added |
| Nomura Asset Management International Inc. | 494,519 | $31.0M | 0.05% | −10,768−2.1% | Reduced |
| Fiera Capital Corp | 496,423 | $31.2M | 0.11% | +174,940+54.4% | Added |
| Victory Capital Management Inc | 497,031 | $31.2M | 0.02% | +15,762+3.3% | Added |
| Gateway Investment Advisers LLC | 499,538 | $31.3M | 0.35% | −81,371−14.0% | Reduced |
| Migdal Insurance & Financial Holdings Ltd. | 500,000 | $31.4M | 0.27% | +500,000 | New |
| State of New Jersey Common Pension Fund D | 504,452 | $31.7M | 0.12% | 00.0% | Unchanged |
| Rock Springs Capital Management LP | 515,300 | $32.3M | 1.91% | +116,250+29.1% | Added |
| IMC-Chicago, LLC | 520,435 | $32.7M | 0.49% | +449,345+632.1% | Added |
| DnB Asset Management AS | 527,264 | $33.1M | 0.12% | +152,707+40.8% | Added |
| Fifth Third Bancorp | 532,886 | $33.4M | 0.06% | +230,377+76.2% | Added |
| Natixis | 540,063 | $33.9M | 0.14% | −13,948−2.5% | Reduced |
| MKP Capital Management, L.L.C. | 549,000 | $34.4M | 1.13% | +549,000 | New |
| Integral Health Asset Management, LLC | 550,000 | $34.5M | 1.83% | +325,000+144.4% | Added |
| US Bancorp | 561,708 | $35.2M | 0.04% | +212,029+60.6% | Added |
| DSM Capital Partners LLC | 564,349 | $35.4M | 0.63% | +559,625+11,846.4% | Added |
| Mn Services Vermogensbeheer B.V. | 568,513 | $35.7M | 0.24% | −4,400−0.8% | Reduced |
| Quantinno Capital Management LP | 574,482 | $36.0M | 0.06% | −105,556−15.5% | Reduced |
| Polen Capital Management LLC | 579,739 | $36.4M | 0.25% | −3,439,813−85.6% | Reduced |
| Mawer Investment Management Ltd. | 589,659 | $37.0M | 0.24% | +543,460+1,176.3% | Added |
| E. Ohman J:or Asset Management AB | 593,165 | $37.2M | 0.99% | +28,694+5.1% | Added |
| Saudi Central Bank | 593,534 | $37.2M | 0.79% | +54,106+10.0% | Added |
| State of Tennessee, Treasury Department | 595,945 | $37.4M | 0.13% | +120,009+25.2% | Added |
| Public Employees Retirement System of Ohio | 605,201 | $38.0M | 0.12% | −21,255−3.4% | Reduced |
| Jump Financial, LLC | 618,715 | $38.8M | 0.57% | +169,417+37.7% | Added |
| Rhenman & Partners Asset Management AB | 625,000 | $39.2M | 4.84% | +193,793+44.9% | Added |
| Bradley Foster & Sargent Inc | 627,470 | $39.4M | 0.61% | +134,550+27.3% | Added |
| AustralianSuper Pty Ltd | 628,448 | $39.4M | 0.21% | −608,743−49.2% | Reduced |
| Treasurer of the State of North Carolina | 631,953 | $39.7M | 0.12% | +13,468+2.2% | Added |
| Tudor Investment Corp Et Al | 632,552 | $39.7M | 0.21% | −100,286−13.7% | Reduced |
| KLP Kapitalforvaltning AS | 636,756 | $40.0M | 0.16% | +26,200+4.3% | Added |
| Pictet & Cie (Europe) SA | 641,234 | $40.2M | 0.86% | +486,715+315.0% | Added |
| Thrivent Financial for Lutherans | 646,962 | $40.6M | 0.08% | +7,842+1.2% | Added |
| Royal London Asset Management Ltd | 665,891 | $41.8M | 0.09% | −7,360−1.1% | Reduced |
| Quadrature Capital Ltd | 670,091 | $42.0M | 0.50% | +670,091 | New |
| Employees Retirement System of Texas | 671,695 | $42.1M | 0.37% | −16,056−2.3% | Reduced |
| Tocqueville Asset Management L.P. | 678,172 | $42.6M | 0.63% | +234,444+52.8% | Added |
| Ci Investments Inc. | 703,393 | $44.1M | 0.21% | −517,759−42.4% | Reduced |
| ZWJ Investment Counsel Inc | 704,102 | $44.2M | 1.59% | +133,091+23.3% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 705,994 | $44.3M | 0.11% | −41,152−5.5% | Reduced |
| Compass Capital Management, Inc | 710,874 | $44.6M | 2.69% | +126,806+21.7% | Added |
| Rockefeller Capital Management L.P. | 711,941 | $44.7M | 0.08% | +116,003+19.5% | Added |
| UniSuper Management Pty Ltd | 719,670 | $45.2M | 0.30% | −41,014−5.4% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 733,131 | $46.0M | 0.13% | −18,976−2.5% | Reduced |
| Edmond de Rothschild Holding S.A. | 734,725 | $46.1M | 0.67% | +685,813+1,402.1% | Added |
| Sands Capital Management, LLC | 736,109 | $46.2M | 0.18% | −69,055−8.6% | Reduced |
| Vanguard Investments Australia, Ltd. | 737,743 | $46.3M | 0.13% | +737,743 | New |
| Nicholas Company, Inc. | 741,274 | $46.5M | 0.91% | +114,116+18.2% | Added |
| APG Asset Management N.V. | 896,449 | $48.8M | 0.15% | −93,130−9.4% | Reduced |
| Asset Management One Co.,Ltd. | 778,376 | $48.8M | 0.14% | −100,729−11.5% | Reduced |
| STRS Ohio | 781,999 | $49.1M | 0.19% | −109,496−12.3% | Reduced |