Boston ScientificBSX
13F holders, Q1 2026 (March 31)1,683holders −112
165new positions
277sold out
14famous investors
$62.79avg. 13F price*
At the end of Q1 2026, 1,683 institutions reported holding Boston Scientific Corp. (BSX) in their 13F filings, down 112 from Q4 2025. 165 opened new positions and 277 sold out. The largest holders were BlackRock, Inc. ($8.3B), Vanguard Capital Management LLC ($6.0B) and FMR LLC ($4.7B). 14 famous investors held it, including Lee Ainslie (3.1% of Maverick Capital's portfolio), David E. Shaw (1.3% of D. E. Shaw & Co.'s portfolio) and Steve Cohen (0.4% of Point72 Asset Management's portfolio).
- Company
- Boston Scientific Corp.
- Sector
- Health Care
- CUSIP
- 101137107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 165 | $785.6M |
| Exits | 277 | $2.0B |
All 13F filers, Q4 2025 → Q1 2026: 167,095,323 shares bought and 163,784,442 shares sold, net +3,310,881 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 1,683 holders
| BlackRock, Inc. | 0.15% | Reduce -3.1% | 131,822,037 | $8.3B |
| Vanguard Capital Management LLC | 0.15% | — | 96,411,568 | $6.0B |
| FMR LLC | 0.25% | Reduce -23.8% | 74,226,395 | $4.7B |
| State Street Corp. | 0.15% | Add +3.3% | 67,986,847 | $4.3B |
| JPMorgan Chase & Co. | 0.14% | Add +31.4% | 33,350,157 | $2.1B |
| Geode Capital Management, LLC | 0.13% | Add +2.8% | 33,285,757 | $2.1B |
| Primecap Management Co. | 1.61% | Add +4.6% | 32,529,774 | $2.0B |
| Vanguard Portfolio Management LLC | 0.10% | — | 29,796,211 | $1.9B |
| D. E. Shaw & Co. | 1.29% | Add +116.1% | 24,312,352 | $1.5B |
| Bank of America Corp. | 0.10% | Reduce -9.4% | 22,756,646 | $1.4B |
| Morgan Stanley | 0.08% | Reduce -3.0% | 22,266,664 | $1.4B |
| Goldman Sachs Group Inc. | 0.16% | Add +13.9% | 18,891,624 | $1.2B |
| Wellington Management Group LLP | 0.22% | Add +94.0% | 18,833,406 | $1.2B |
| Bollard Group LLC | 35.51% | Reduce -2.5% | 18,532,173 | $1.2B |
| Janus Henderson Group PLC | 0.49% | Add +31.0% | 16,497,366 | $1.0B |
| Capital World Investors | 0.13% | Reduce -43.6% | 15,309,738 | $960.7M |
| UBS Group AG | 0.17% | Reduce -0.3% | 14,824,662 | $930.2M |
| Franklin Resources Inc. | 0.23% | Add +155.4% | 14,498,741 | $909.8M |
| Amundi | 0.24% | Add +13.8% | 14,122,913 | $886.2M |
| Arrowstreet Capital, Limited Partnership | 0.47% | Add +25.9% | 13,891,668 | $871.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.18% | Add +23.6% | 13,513,771 | $848.0M |
| Northern Trust Corp. | 0.11% | Reduce -4.0% | 13,373,881 | $839.2M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.76% | Reduce -28.6% | 13,229,644 | $830.2M |
| Nuveen, LLC | 0.20% | Add +25.2% | 11,734,314 | $736.3M |
| Massachusetts Financial Services Co. | 0.24% | Add +21.0% | 10,996,572 | $716.9M |
| Legal & General Group Plc | 0.15% | Reduce -2.5% | 10,600,766 | $665.2M |
| Assenagon Asset Management S.A. | 1.01% | Add +133.6% | 10,057,936 | $631.1M |
| Bank of New York Mellon Corp | 0.11% | Reduce -15.0% | 9,543,875 | $598.9M |
| Two Sigma Investments, LP | 0.51% | Add +280.8% | 9,411,231 | $590.6M |
| Charles Schwab Investment Management Inc. | 0.09% | Add +2.5% | 9,170,180 | $575.4M |
| Invesco Ltd. | 0.06% | Reduce -32.0% | 9,051,941 | $568.0M |
| Vanguard Fiduciary Trust Co. | 0.13% | — | 8,382,185 | $526.0M |
| Canada Pension Plan Investment Board | 0.33% | Add +17.1% | 8,035,947 | $504.3M |
| Parnassus Investments, LLC | 1.47% | Add +1.3% | 8,003,820 | $502.2M |
| Vontobel Holding Ltd. | 1.72% | Add +112.0% | 7,978,214 | $500.6M |
| T. Rowe Price Associates Inc. | 0.06% | Add +5.6% | 7,873,368 | $494.1M |
| Edgewood Management LLC | 3.09% | Reduce -2.2% | 7,629,399 | $478.7M |
| Farallon Capital Management, L.L.C. | 2.79% | Add +0.4% | 7,470,684 | $468.8M |
| Ninety One UK Ltd | 1.06% | Add +34.2% | 7,308,540 | $458.6M |
| 1832 Asset Management L.P. | 0.60% | Add +229.4% | 7,252,746 | $455.1M |
| Schroder Investment Management Group | 0.37% | Reduce -13.2% | 7,252,007 | $455.1M |
| Capital Research Global Investors | 0.07% | Reduce -0.0% | 7,080,887 | $444.3M |
| Neuberger Berman Group LLC | 0.34% | Add +76.4% | 7,072,894 | $443.8M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.51% | Reduce -9.8% | 6,966,229 | $437.3M |
| Deutsche Bank AG | 0.14% | Reduce -1.4% | 6,653,275 | $417.5M |
| Royal Bank of Canada | 0.07% | Add +13.0% | 6,273,263 | $393.6M |
| Dimensional Fund Advisors LP | 0.08% | Add +6.3% | 6,097,777 | $382.7M |
| Qube Research & Technologies Ltd | 0.50% | Add +1.2% | 5,569,880 | $349.5M |
| Ameriprise Financial Inc. | 0.08% | Reduce -13.3% | 5,573,439 | $349.4M |
| AQR Capital Management | 0.15% | Add +377.3% | 5,239,836 | $327.3M |
| Pictet Asset Management Holding SA | 0.34% | Add +19.1% | 5,120,057 | $321.3M |
| BNP Paribas Financial Markets | 0.21% | Add +54.9% | 5,101,806 | $320.1M |
| Barclays PLC | 0.11% | Add +15.2% | 5,024,157 | $315.3M |
| First Manhattan Co. Llc. | 0.85% | Add +161.0% | 4,911,217 | $308.2M |
| Lazard Asset Management LLC | 0.50% | Add +24.8% | 4,880,504 | $306.3M |
| Adage Capital Partners Gp, L.L.C. | 0.45% | Add +122.5% | 4,633,237 | $290.7M |
| Ensign Peak Advisors, Inc | 0.53% | Add +185.7% | 4,507,242 | $282.8M |
| Swiss National Bank | 0.16% | Add +7.1% | 4,350,600 | $273.0M |
| Citadel Advisors | 0.19% | Reduce -11.7% | 4,217,314 | $264.6M |
| Maverick Capital | 3.06% | Add +42.5% | 4,195,089 | $263.2M |
| Jane Street Group, LLC | 0.27% | Add +6.3% | 4,032,117 | $253.0M |
| Millennium Management | 0.19% | Reduce -61.5% | 4,337,804 | $240.8M |
| Man Group plc | 0.49% | Reduce -15.3% | 3,718,731 | $233.4M |
| National Pension Service | 0.18% | Reduce -1.7% | 3,698,745 | $232.1M |
| Point72 Asset Management | 0.42% | Add +51.5% | 3,687,315 | $231.4M |
| Marshall Wace, LLP | 0.24% | Add +22.1% | 3,611,020 | $226.6M |
| Holocene Advisors, LP | 0.52% | Reduce -23.3% | 3,428,736 | $215.2M |
| Sumitomo Mitsui Trust Group, Inc. | 0.14% | Reduce -1.0% | 3,422,813 | $214.8M |
| HSBC Holdings PLC | 0.13% | Reduce -5.9% | 3,399,703 | $212.7M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.14% | Add +8.1% | 3,364,108 | $211.1M |
| Vanguard Global Advisers, LLC | 0.11% | — | 3,244,238 | $203.6M |
| FIL Ltd | 0.16% | Reduce -32.5% | 3,214,116 | $201.7M |
| Rathbones Group PLC | 0.80% | Add +15.2% | 3,179,435 | $199.5M |
| Renaissance Technologies | 0.31% | Add +32.3% | 3,152,005 | $197.8M |
| Raymond James Financial Inc. | 0.06% | Reduce -14.3% | 3,029,097 | $190.1M |
| Wells Fargo & Company | 0.04% | Reduce -28.2% | 2,971,322 | $186.5M |
| Alecta Tjanstepension Omsesidigt | 0.88% | Add +4.5% | 2,865,900 | $179.7M |
| Unisphere Establishment | 1.48% | Add +28.8% | 2,802,700 | $175.9M |
| Aberdeen Group plc | 0.28% | Add +4.6% | 2,766,280 | $173.6M |
| Rhumbline Advisers | 0.14% | Reduce -0.8% | 2,674,641 | $167.8M |
| Manufacturers Life Insurance Company, The | 0.14% | Add +155.7% | 2,629,613 | $165.0M |
| American Century Companies Inc. | 0.08% | Reduce -43.1% | 2,617,803 | $164.3M |
| Handelsbanken Fonder AB | 0.54% | Add +2.7% | 2,587,061 | $162.3M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.14% | — | 2,567,095 | $161.1M |
| Mariner, LLC | 0.18% | Add +476.3% | 2,484,960 | $155.9M |
| Alliancebernstein L.P. | 0.05% | Reduce -42.0% | 1,625,785 | $155.0M |
| KBC Group NV | 0.38% | Reduce -20.5% | 2,420,506 | $151.9M |
| Temasek Holdings (Private) Ltd | 0.51% | Add +15.3% | 2,399,426 | $150.6M |
| Allianz Asset Management GmbH | 0.17% | Add +19.7% | 2,393,824 | $150.2M |
| Orbimed Advisors LLC | 3.38% | Reduce -1.5% | 2,382,100 | $149.5M |
| Russell Investments Group, Ltd. | 0.16% | Add +19.2% | 2,318,420 | $145.5M |
| Bank of Nova Scotia | 0.25% | Add +15.5% | 2,303,011 | $144.5M |
| California State Teachers Retirement System | 0.15% | Reduce -2.5% | 2,299,954 | $144.3M |
| Clearbridge Investments, LLC | 0.12% | Add +210.9% | 2,279,418 | $143.0M |
| Worldquant Millennium Advisors LLC | 0.55% | Reduce -32.9% | 2,274,140 | $142.7M |
| California Public Employees Retirement System | 0.09% | Reduce -24.9% | 2,261,265 | $141.9M |
| Ilex Capital Partners (UK) LLP | 3.46% | Add +39.6% | 2,234,180 | $140.2M |
| Milford Funds Ltd. | 2.91% | Add +171.1% | 2,210,221 | $138.7M |
| Mirova US LLC | 1.57% | Add +60.8% | 2,203,401 | $138.3M |
| Employees Provident Fund Board | 1.01% | No change | 2,134,591 | $133.9M |
"% of holder's portfolio" is BSX's weight in each manager's 13F, not the share of Boston Scientific Corp. the manager owns.