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; 1,485 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 | 1,485 | $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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 131,822,037 | $8.27B | 0.15% | −4,165,208−3.1% | Reduced |
| Vanguard Capital Management LLC | 96,411,568 | $6.05B | 0.15% | +96,411,568 | New |
| FMR LLC | 74,226,395 | $4.66B | 0.25% | −23,160,546−23.8% | Reduced |
| State Street Corp | 67,986,847 | $4.27B | 0.15% | +2,140,788+3.3% | Added |
| JPMorgan Chase & Co | 33,350,157 | $2.10B | 0.14% | +7,977,271+31.4% | Added |
| Geode Capital Management, LLC | 33,285,757 | $2.08B | 0.13% | +901,992+2.8% | Added |
| Primecap Management Co | 32,529,774 | $2.04B | 1.61% | +1,433,590+4.6% | Added |
| Vanguard Portfolio Management LLC | 29,796,211 | $1.87B | 0.10% | +29,796,211 | New |
| D. E. Shaw & Co., Inc. | 24,312,352 | $1.53B | 1.20% | +13,063,148+116.1% | Added |
| Bank of America Corp | 22,756,646 | $1.43B | 0.10% | −2,358,539−9.4% | Reduced |
| Morgan Stanley | 22,266,664 | $1.40B | 0.08% | −693,892−3.0% | Reduced |
| Goldman Sachs Group Inc | 18,891,624 | $1.19B | 0.16% | +2,312,707+13.9% | Added |
| Wellington Management Group LLP | 18,833,406 | $1.18B | 0.22% | +9,124,317+94.0% | Added |
| Bollard Group LLC | 18,532,173 | $1.16B | 35.51% | −468,296−2.5% | Reduced |
| Janus Henderson Group PLC | 16,497,366 | $1.04B | 0.49% | +3,907,981+31.0% | Added |
| Capital World Investors | 15,309,738 | $960.7M | 0.13% | −11,841,837−43.6% | Reduced |
| UBS Group AG | 14,824,662 | $930.2M | 0.17% | −47,464−0.3% | Reduced |
| Franklin Resources Inc | 14,498,741 | $909.8M | 0.22% | +8,822,659+155.4% | Added |
| Amundi | 14,122,913 | $886.2M | 0.24% | +1,707,754+13.8% | Added |
| Arrowstreet Capital, Limited Partnership | 13,891,668 | $871.7M | 0.47% | +2,856,040+25.9% | Added |
| UBS Asset Management Americas Inc | 13,513,771 | $848.0M | 0.18% | +2,576,814+23.6% | Added |
| Northern Trust Corp | 13,373,881 | $839.2M | 0.11% | −561,542−4.0% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 13,229,644 | $830.2M | 0.76% | −5,311,049−28.6% | Reduced |
| Nuveen, LLC | 11,734,314 | $736.3M | 0.20% | +2,362,020+25.2% | Added |
| Massachusetts Financial Services Co | 10,996,572 | $716.9M | 0.24% | +1,911,044+21.0% | Added |
| Legal & General Group Plc | 10,600,766 | $665.2M | 0.15% | −275,851−2.5% | Reduced |
| Assenagon Asset Management S.A. | 10,057,936 | $631.1M | 1.01% | +5,751,760+133.6% | Added |
| Bank of New York Mellon Corp | 9,543,875 | $598.9M | 0.11% | −1,680,922−15.0% | Reduced |
| Two Sigma Investments, LP | 9,411,231 | $590.6M | 0.49% | +6,939,887+280.8% | Added |
| Charles Schwab Investment Management Inc | 9,170,180 | $575.4M | 0.09% | +223,677+2.5% | Added |
| Invesco Ltd. | 9,051,941 | $568.0M | 0.06% | −4,266,236−32.0% | Reduced |
| Vanguard Fiduciary Trust Co | 8,382,185 | $526.0M | 0.13% | +8,382,185 | New |
| Canada Pension Plan Investment Board | 8,035,947 | $504.3M | 0.33% | +1,174,187+17.1% | Added |
| Parnassus Investments | 8,003,820 | $502.2M | 1.47% | +104,580+1.3% | Added |
| Vontobel Holding Ltd. | 7,978,214 | $500.6M | 1.72% | +4,214,425+112.0% | Added |
| Price T Rowe Associates Inc | 7,873,368 | $494.1M | 0.06% | +416,082+5.6% | Added |
| Edgewood Management LLC | 7,629,399 | $478.7M | 3.09% | −173,866−2.2% | Reduced |
| Farallon Capital Management, L.L.C. | 7,470,684 | $468.8M | 2.78% | +31,120+0.4% | Added |
| Ninety One UK Ltd | 7,308,540 | $458.6M | 1.06% | +1,863,991+34.2% | Added |
| 1832 Asset Management L.P. | 7,252,746 | $455.1M | 0.60% | +5,051,088+229.4% | Added |
| Schroder Investment Management Group | 7,252,007 | $455.1M | 0.37% | −1,097,634−13.1% | Reduced |
| Capital Research Global Investors | 7,080,887 | $444.3M | 0.07% | −3,1680.0% | Reduced |
| Neuberger Berman Group LLC | 7,072,894 | $443.8M | 0.34% | +3,062,633+76.4% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 6,966,229 | $437.3M | 0.51% | −756,851−9.8% | Reduced |
| Deutsche Bank AG | 6,653,275 | $417.5M | 0.14% | −94,905−1.4% | Reduced |
| Royal Bank of Canada | 6,273,263 | $393.6M | 0.07% | +721,691+13.0% | Added |
| Dimensional Fund Advisors LP | 6,097,777 | $382.7M | 0.08% | +362,547+6.3% | Added |
| Qube Research & Technologies Ltd | 5,569,880 | $349.5M | 0.50% | +63,975+1.2% | Added |
| Ameriprise Financial Inc | 5,573,439 | $349.4M | 0.08% | −857,645−13.3% | Reduced |
| AQR Capital Management LLC | 5,239,836 | $327.3M | 0.15% | +4,142,091+377.3% | Added |
| Pictet Asset Management Holding SA | 5,120,057 | $321.3M | 0.34% | +820,284+19.1% | Added |
| BNP Paribas Arbitrage, SA | 5,101,806 | $320.1M | 0.21% | +1,807,168+54.9% | Added |
| Barclays PLC | 5,024,157 | $315.3M | 0.11% | +663,465+15.2% | Added |
| First Manhattan Co | 4,911,217 | $308.2M | 0.85% | +3,029,280+161.0% | Added |
| Lazard Asset Management LLC | 4,880,504 | $306.3M | 0.50% | +970,473+24.8% | Added |
| Adage Capital Partners GP, L.L.C. | 4,633,237 | $290.7M | 0.45% | +2,550,877+122.5% | Added |
| Ensign Peak Advisors, Inc | 4,507,242 | $282.8M | 0.53% | +2,929,480+185.7% | Added |
| Swiss National Bank | 4,350,600 | $273.0M | 0.16% | +290,100+7.1% | Added |
| Citadel Advisors LLC | 4,217,314 | $264.6M | 0.19% | −558,304−11.7% | Reduced |
| Maverick Capital LtdSuperinvestorMaverick Capital | 4,195,089 | $263.2M | 3.06% | +1,250,835+42.5% | Added |
| Jane Street Group, LLC | 4,032,117 | $253.0M | 0.27% | +238,881+6.3% | Added |
| Millennium Management LLC | 4,337,804 | $240.8M | 0.18% | −6,926,986−61.5% | Reduced |
| Man Group plc | 3,718,731 | $233.4M | 0.48% | −673,994−15.3% | Reduced |
| National Pension Service | 3,698,745 | $232.1M | 0.18% | −62,870−1.7% | Reduced |
| Point72 Asset Management, L.P. | 3,687,315 | $231.4M | 0.40% | +1,252,752+51.5% | Added |
| Marshall Wace, LLP | 3,611,020 | $226.6M | 0.24% | +653,783+22.1% | Added |
| Holocene Advisors, LP | 3,428,736 | $215.2M | 0.52% | −1,042,353−23.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 3,422,813 | $214.8M | 0.14% | −34,648−1.0% | Reduced |
| HSBC Holdings PLC | 3,399,703 | $212.7M | 0.13% | −212,549−5.9% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 3,364,108 | $211.1M | 0.14% | +253,039+8.1% | Added |
| Vanguard Global Advisers, LLC | 3,244,238 | $203.6M | 0.11% | +3,244,238 | New |
| FIL Ltd | 3,214,116 | $201.7M | 0.16% | −1,543,963−32.4% | Reduced |
| Rathbone Brothers plc | 3,179,435 | $199.5M | 0.80% | +419,778+15.2% | Added |
| Renaissance Technologies LLC | 3,152,005 | $197.8M | 0.31% | +769,300+32.3% | Added |
| Raymond James Financial Inc | 3,029,097 | $190.1M | 0.06% | −503,955−14.3% | Reduced |
| Wells Fargo & Company | 2,971,322 | $186.5M | 0.04% | −1,165,706−28.2% | Reduced |
| Alecta Pensionsforsakring, Omsesidigt | 2,865,900 | $179.7M | 0.88% | +122,800+4.5% | Added |
| Unisphere Establishment | 2,802,700 | $175.9M | 1.48% | +626,000+28.8% | Added |
| Standard Life Aberdeen plc | 2,766,280 | $173.6M | 0.28% | +121,968+4.6% | Added |
| Rhumbline Advisers | 2,674,641 | $167.8M | 0.14% | −22,884−0.8% | Reduced |
| Manufacturers Life Insurance Company, The | 2,629,613 | $165.0M | 0.14% | +1,601,237+155.7% | Added |
| American Century Companies Inc | 2,617,803 | $164.3M | 0.08% | −1,984,391−43.1% | Reduced |
| Handelsbanken Fonder AB | 2,587,061 | $162.3M | 0.54% | +66,942+2.7% | Added |
| Vanguard Asset Management, Ltd | 2,567,095 | $161.1M | 0.14% | +2,567,095 | New |
| Mariner, LLC | 2,484,960 | $155.9M | 0.18% | +2,053,754+476.3% | Added |
| Alliancebernstein L.P. | 1,625,785 | $155.0M | 0.05% | −1,174,944−42.0% | Reduced |
| KBC Group NV | 2,420,506 | $151.9M | 0.38% | −623,879−20.5% | Reduced |
| Temasek Holdings (Private) Ltd | 2,399,426 | $150.6M | 0.51% | +317,800+15.3% | Added |
| Allianz Asset Management GmbH | 2,393,824 | $150.2M | 0.17% | +394,232+19.7% | Added |
| OrbiMed Advisors LLC | 2,382,100 | $149.5M | 3.40% | −37,200−1.5% | Reduced |
| Russell Investments Group, Ltd. | 2,318,420 | $145.5M | 0.16% | +372,845+19.2% | Added |
| Bank of Nova Scotia | 2,303,011 | $144.5M | 0.25% | +308,930+15.5% | Added |
| California State Teachers Retirement System | 2,299,954 | $144.3M | 0.15% | −57,751−2.4% | Reduced |
| Clearbridge Investments, LLC | 2,279,418 | $143.0M | 0.12% | +1,546,181+210.9% | Added |
| Worldquant Millennium Advisors LLC | 2,274,140 | $142.7M | 0.55% | −1,112,856−32.9% | Reduced |
| California Public Employees Retirement System | 2,261,265 | $141.9M | 0.09% | −750,748−24.9% | Reduced |
| Ilex Capital Partners (UK) LLP | 2,234,180 | $140.2M | 3.45% | +633,379+39.6% | Added |
| Milford Funds Ltd | 2,210,221 | $138.7M | 2.91% | +1,394,942+171.1% | Added |
| Mirova US LLC | 2,203,401 | $138.3M | 1.57% | +833,372+60.8% | Added |
| Employees Provident Fund Board | 2,134,591 | $133.9M | 1.01% | 00.0% | Unchanged |