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, Q4 2025
Institutional positions in Boston Scientific Corp as of Dec 31, 2025. 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
- 1,793
- +111 vs. Q3 2025
- Shares held
- 1.36B
- +28.7M (+2.1%) vs. Q3 2025
- Total value
- $130.0B
- −$343.5M (−0.3%) vs. Q3 2025
- New holders
- 239
- 673 more added
- Sold out
- 128
- 686 more reduced
32 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Boston Scientific Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal London Asset Management Ltd | 673,251 | $64.2M | 0.14% | −5,810−0.9% | Reduced |
| Quantinno Capital Management LP | 680,038 | $64.8M | 0.13% | +167,468+32.7% | Added |
| Abn Amro Investment Solutions | 687,007 | $65.5M | 0.97% | +126,088+22.5% | Added |
| Employees Retirement System of Texas | 687,751 | $65.6M | 0.53% | +132,800+23.9% | Added |
| Engineers Gate Manager LP | 706,897 | $67.4M | 0.80% | +148,852+26.7% | Added |
| Tudor Investment Corp Et Al | 732,838 | $69.9M | 0.38% | +72,652+11.0% | Added |
| Clearbridge Investments, LLC | 733,237 | $69.9M | 0.06% | +730,376+25,528.7% | Added |
| Northwestern Mutual Wealth Management Co | 735,852 | $70.2M | 0.04% | +63,773+9.5% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 747,146 | $71.2M | 0.17% | +6,725+0.9% | Added |
| Chevy Chase Trust Holdings, Inc. | 752,107 | $71.7M | 0.19% | −4,316−0.6% | Reduced |
| UniSuper Management Pty Ltd | 760,684 | $72.5M | 0.43% | −318,658−29.5% | Reduced |
| State of Wisconsin Investment Board | 767,854 | $73.2M | 0.16% | −73,676−8.8% | Reduced |
| Woodline Partners LP | 779,904 | $74.4M | 0.29% | +316,481+68.3% | Added |
| Lansforsakringar Fondforvaltning AB (publ) | 791,176 | $75.4M | 0.37% | −4,913−0.6% | Reduced |
| Sands Capital Management, LLC | 805,164 | $76.8M | 0.23% | +805,164 | New |
| Milford Funds Ltd | 815,279 | $77.7M | 1.53% | +815,279 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 818,916 | $78.1M | 0.20% | +559,969+216.2% | Added |
| APG Asset Management N.V. | 989,579 | $80.3M | 0.23% | −71,458−6.7% | Reduced |
| Danske Bank A/S | 865,062 | $82.5M | 0.19% | −103,023−10.6% | Reduced |
| Calamos Advisors LLC | 871,657 | $83.1M | 0.34% | −22,773−2.5% | Reduced |
| Asset Management One Co.,Ltd. | 879,105 | $84.1M | 0.23% | +103,326+13.3% | Added |
| STRS Ohio | 891,495 | $85.0M | 0.32% | +5,529+0.6% | Added |
| Nomura Asset Management Co Ltd | 906,900 | $86.5M | 0.22% | +26,655+3.0% | Added |
| PFA Pension, Forsikringsaktieselskab | 926,379 | $88.9M | 0.25% | +926,379 | New |
| AMF Pensionsforsakring AB | 952,950 | $90.9M | 0.56% | +46,538+5.1% | Added |
| Perceptive Advisors LLC | 979,000 | $93.3M | 1.71% | +669,000+215.8% | Added |
| Toronto Dominion Bank | 1,024,051 | $97.6M | 0.17% | +470,096+84.9% | Added |
| Manufacturers Life Insurance Company, The | 1,028,376 | $98.2M | 0.08% | −46,516−4.3% | Reduced |
| Gilder Gagnon Howe & Co LLC | 1,077,221 | $102.7M | 1.08% | −26,104−2.4% | Reduced |
| Acadian Asset Management LLC | 1,081,273 | $103.1M | 0.17% | +224,967+26.3% | Added |
| Public Employees Retirement Association of Colorado | 1,083,552 | $103.3M | 0.38% | −197,687−15.4% | Reduced |
| CIBC Private Wealth Group, LLC | 1,096,053 | $104.5M | 0.18% | −291,633−21.0% | Reduced |
| Fred Alger Management, LLC | 1,096,675 | $104.6M | 0.41% | +110,728+11.2% | Added |
| AQR Capital Management LLC | 1,097,745 | $104.7M | 0.05% | −74,106−6.3% | Reduced |
| Candriam Luxembourg S.C.A. | 1,129,838 | $107.7M | 0.54% | −117,633−9.4% | Reduced |
| Tredje AP-fonden | 1,146,889 | $109.4M | 0.82% | +76,201+7.1% | Added |
| Capital Fund Management S.A. | 1,152,048 | $109.8M | 1.04% | +612,642+113.6% | Added |
| Great West Life Assurance Co | 1,159,096 | $110.6M | 0.19% | −801,463−40.9% | Reduced |
| The PNC Financial Services Group, Inc. | 1,188,016 | $113.3M | 0.06% | −33,827−2.8% | Reduced |
| New York State Teachers Retirement System | 1,208,251 | $115.2M | 0.22% | −8,900−0.7% | Reduced |
| Banque Transatlantique SA | 1,211,331 | $115.5M | 2.80% | +139,431+13.0% | Added |
| Ci Investments Inc. | 1,221,152 | $116.4M | 0.51% | −394,422−24.4% | Reduced |
| AustralianSuper Pty Ltd | 1,237,191 | $118.0M | 0.55% | −1,509,137−55.0% | Reduced |
| Munro Partners | 1,256,810 | $119.8M | 3.34% | +14,730+1.2% | Added |
| Cerity Partners LLC | 1,265,524 | $120.7M | 0.18% | +39,345+3.2% | Added |
| National Bank of Canada | 1,276,235 | $121.7M | 0.12% | −365,978−22.3% | Reduced |
| State Board of Administration of Florida Retirement System | 1,288,698 | $122.9M | 0.22% | −58,527−4.3% | Reduced |
| Eurizon Capital SGR S.p.A. | 1,297,933 | $123.9M | 0.39% | +1,297,933 | New |
| Freestone Grove Partners LP | 1,327,239 | $126.6M | 0.91% | +1,254,840+1,733.2% | Added |
| Citigroup Inc | 1,356,499 | $129.3M | 0.09% | −749,602−35.6% | Reduced |
| Groupama Asset Managment | 1,366,905 | $130.3M | 1.91% | +34,424+2.6% | Added |
| Mirova US LLC | 1,370,029 | $130.6M | 1.31% | +1,370,029 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 1,381,666 | $131.8M | 0.21% | +48,539+3.6% | Added |
| Public Sector Pension Investment Board | 1,416,308 | $135.0M | 0.45% | −407,173−22.3% | Reduced |
| Korea Investment CORP | 1,419,251 | $135.3M | 0.27% | −42,359−2.9% | Reduced |
| Storebrand Asset Management AS | 1,421,212 | $135.5M | 0.36% | −117,628−7.6% | Reduced |
| Huntington National Bank | 1,428,134 | $136.2M | 0.82% | +8,103+0.6% | Added |
| TCW Group Inc | 1,429,742 | $136.3M | 0.98% | +97,947+7.4% | Added |
| Caisse de Depot Et Placement du Quebec | 1,446,092 | $137.9M | 0.23% | +104,605+7.8% | Added |
| Aviva PLC | 1,485,712 | $141.7M | 0.24% | +311,905+26.6% | Added |
| Panagora Asset Management Inc | 1,489,184 | $142.0M | 0.50% | +644,314+76.3% | Added |
| DekaBank Deutsche Girozentrale | 1,844,793 | $146.5M | 0.27% | 00.0% | Unchanged |
| Bellevue Group AG | 1,559,606 | $148.7M | 2.82% | −100,243−6.0% | Reduced |
| Ensign Peak Advisors, Inc | 1,577,762 | $150.4M | 0.27% | +102,272+6.9% | Added |
| Prudential Financial Inc | 1,584,435 | $151.1M | 0.18% | +249,426+18.7% | Added |
| Ilex Capital Partners (UK) LLP | 1,600,801 | $152.6M | 4.31% | +1,600,801 | New |
| Axiom Investors LLC | 1,641,563 | $156.5M | 1.37% | −933,102−36.2% | Reduced |
| Congress Asset Management Co | 1,649,958 | $157.3M | 1.11% | −34,119−2.0% | Reduced |
| Principal Financial Group Inc | 1,671,658 | $159.4M | 0.08% | +34,420+2.1% | Added |
| Federated Hermes, Inc. | 1,676,886 | $159.9M | 0.27% | +32,367+2.0% | Added |
| Agf Management Ltd | 1,687,336 | $160.9M | 0.70% | −1,550,646−47.9% | Reduced |
| LPL Financial LLC | 1,705,827 | $162.7M | 0.04% | +34,717+2.1% | Added |
| Impax Asset Management Group plc | 1,723,927 | $164.4M | 1.03% | −3,453−0.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,730,365 | $165.0M | 0.36% | −135,917−7.3% | Reduced |
| Great Lakes Advisors, LLC | 1,776,776 | $169.4M | 1.38% | −57,625−3.1% | Reduced |
| Voloridge Investment Management, LLC | 1,803,913 | $172.0M | 0.60% | −805,508−30.9% | Reduced |
| New York State Common Retirement Fund | 1,808,953 | $172.5M | 0.23% | −114,568−6.0% | Reduced |
| TD Asset Management Inc | 1,865,401 | $177.9M | 0.14% | −129,015−6.5% | Reduced |
| First Manhattan Co | 1,881,937 | $179.4M | 0.47% | +1,696,478+914.7% | Added |
| Russell Investments Group, Ltd. | 1,945,575 | $185.7M | 0.20% | +291,108+17.6% | Added |
| Bank of Nova Scotia | 1,994,081 | $190.1M | 0.28% | −680,471−25.4% | Reduced |
| Danica Pension, Livsforsikringsaktieselskab | 1,994,729 | $190.2M | 2.74% | +215,837+12.1% | Added |
| Allianz Asset Management GmbH | 1,999,592 | $190.7M | 0.22% | +508,046+34.1% | Added |
| Bank of Montreal | 2,040,366 | $194.5M | 0.08% | −97,682−4.6% | Reduced |
| Walleye Capital LLC | 2,041,414 | $194.6M | 1.11% | +1,273,969+166.0% | Added |
| Mackenzie Financial Corp | 2,067,848 | $198.1M | 0.23% | −1,035,660−33.4% | Reduced |
| Temasek Holdings (Private) Ltd | 2,081,626 | $198.5M | 0.64% | +402,300+24.0% | Added |
| Adage Capital Partners GP, L.L.C. | 2,082,360 | $198.6M | 0.30% | +734,944+54.5% | Added |
| Stifel Financial Corp | 2,114,497 | $201.6M | 0.18% | −65,583−3.0% | Reduced |
| Employees Provident Fund Board | 2,134,591 | $203.5M | 1.50% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 2,173,399 | $205.8M | 0.33% | +139,004+6.8% | Added |
| Voya Investment Management LLC | 2,170,682 | $207.0M | 0.20% | −2,213,687−50.5% | Reduced |
| Credit Agricole S A | 2,173,997 | $207.3M | 0.57% | +76,157+3.6% | Added |
| Unisphere Establishment | 2,176,700 | $207.5M | 1.55% | +69,500+3.3% | Added |
| 1832 Asset Management L.P. | 2,201,658 | $209.9M | 0.27% | +2,167,794+6,401.5% | Added |
| SEI Investments Co | 2,207,320 | $210.5M | 0.21% | −87,080−3.8% | Reduced |
| Natixis Advisors, L.P. | 2,208,640 | $210.6M | 0.30% | −298,125−11.9% | Reduced |
| California State Teachers Retirement System | 2,357,705 | $224.8M | 0.22% | −47,049−2.0% | Reduced |
| Renaissance Technologies LLC | 2,382,705 | $227.2M | 0.35% | +1,465,600+159.8% | Added |
| OrbiMed Advisors LLC | 2,419,300 | $230.7M | 4.72% | −10,000−0.4% | Reduced |