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BSX

Boston Scientific Corp

Company with tickers: BSX

CIK
885725
CUSIP
101137107
Shares Outstanding
1,486,355,179
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 1,646
Total Value: $73,961,018,028
Total Shares: 1,178,661,656
Showing 1–100 of 1,729 holdings by value · page 1 of 18

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 1,646 13F filers · Δ vs Dec 31, 2025
Top Holder
11.2%
+2.1 pts
Top 5
28.9%
+5.2 pts
Top 10
38.9%
+4.8 pts
HHI
268
Broadly held +67

Quarterly Activity

vs Dec 31, 2025
New
1,578
Increased
29
Decreased
25
Sold Out
1,698
Unchanged
14
Holder count: -120
Institutional value: -27.6%
Shares held: +10.1%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega GOLDMAN SACHS GROUP INC +2,574,207 19,366,624
Large Caption Management, LLC +1,059,100 1,881,600
Large HRT FINANCIAL LP +720,340 1,051,996
Large Rockefeller Capital Management L.P. +151,514 711,941
Large Candriam S.C.A. +131,623 1,261,461

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. −2,805,990 2,414
Mega HSBC HOLDINGS PLC −293,949 3,399,703
Large STOREBRAND ASSET MANAGEMENT AS −224,233 1,196,979
Large DIAMOND HILL CAPITAL MANAGEMENT INC −100,100 150,114
Mid CAPITAL INTERNATIONAL LTD /CA/ −85,225 153,640

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mega BlackRock, Inc. 131,822,037 $8,271,832,814
Mega FMR LLC 74,226,395 $4,657,706,283
Mega STATE STREET CORP 67,986,847 $4,266,174,649
Mega JPMORGAN CHASE & CO 33,350,157 $2,092,722,344
Mega GEODE CAPITAL MANAGEMENT, LLC 33,285,757 $2,088,681,251

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega FMR LLC 97,386,941 $9,285,844,822
Mega STATE STREET CORP 65,846,059 $6,278,421,725
Mega GEODE CAPITAL MANAGEMENT, LLC 32,383,765 $3,087,791,992
Mega PRIMECAP MANAGEMENT CO/CA/ 31,096,184 $2,965,021,144
Mega Capital World Investors 27,151,575 $2,588,902,676
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $8,271,832,814 11.18% 131,822,037 View
Mega FMR LLC $4,657,706,283 6.30% 74,226,395 View
Mega STATE STREET CORP $4,266,174,649 5.77% 67,986,847 View
Mega JPMORGAN CHASE & CO $2,092,722,344 2.83% 33,350,157 View
Mega GEODE CAPITAL MANAGEMENT, LLC $2,088,681,251 2.82% 33,285,757 View
Mega PRIMECAP MANAGEMENT CO/CA/ $2,041,243,318 2.76% 32,529,774 View
Mega D. E. Shaw & Co., Inc. $1,525,600,087 2.06% 24,312,352 View
Mega BANK OF AMERICA CORP /DE/ $1,427,979,535 1.93% 22,756,646 View
Mega GOLDMAN SACHS GROUP INC $1,185,449,403 1.60% 18,891,624 View
Mega WELLINGTON MANAGEMENT GROUP LLP $1,181,796,224 1.60% 18,833,406 View
Mid Bollard Group LLC $1,162,893,855 1.57% 18,532,173 View
Mega JANUS HENDERSON GROUP PLC $1,035,209,713 1.40% 16,497,366 View
Mega Capital World Investors $960,686,059 1.30% 15,309,738 View
Mega UBS Group AG $930,247,536 1.26% 14,824,662 View
Mega FRANKLIN RESOURCES INC $909,795,995 1.23% 14,498,741 View
Mega Amundi $886,212,788 1.20% 14,122,913 View
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $871,702,167 1.18% 13,891,668 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $847,989,125 1.15% 13,513,771 View
Mega DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main $830,160,158 1.12% 13,229,644 View
Mega Nuveen, LLC $736,328,203 1.00% 11,734,314 View
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $690,034,889 0.93% 10,996,572 View
Mega Legal & General Group Plc $665,198,065 0.90% 10,600,766 View
Large Assenagon Asset Management S.A. $631,135,484 0.85% 10,057,936 View
Mega Bank of New York Mellon Corp $598,878,148 0.81% 9,543,875 View
Mega TWO SIGMA INVESTMENTS, LP $590,554,745 0.80% 9,411,231 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $575,428,795 0.78% 9,170,180 View
Mega Invesco Ltd. $568,009,290 0.77% 9,051,941 View
Mega CANADA PENSION PLAN INVESTMENT BOARD $504,255,674 0.68% 8,035,947 View
Large PARNASSUS INVESTMENTS, LLC $502,239,705 0.68% 8,003,820 View
Large Vontobel Holding Ltd. $500,632,925 0.68% 7,978,214 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $494,053,841 0.67% 7,873,368 View
Large EDGEWOOD MANAGEMENT LLC $478,744,787 0.65% 7,629,399 View
Large FARALLON CAPITAL MANAGEMENT LLC $468,785,421 0.63% 7,470,684 View
Large Ninety One UK Ltd $458,610,885 0.62% 7,308,540 View
Large 1832 Asset Management L.P. $455,109,811 0.62% 7,252,746 View
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $455,063,437 0.62% 7,252,007 View
Mega Capital Research Global Investors $444,325,659 0.60% 7,080,887 View
Mega NEUBERGER BERMAN GROUP LLC $443,824,098 0.60% 7,072,894 View
Mega DEUTSCHE BANK AG\ $417,493,000 0.56% 6,653,275 View
Mega ROYAL BANK OF CANADA $393,647,249 0.53% 6,273,263 View
Mega DIMENSIONAL FUND ADVISORS LP $382,635,505 0.52% 6,097,777 View
Mega AMERIPRISE FINANCIAL INC $349,733,293 0.47% 5,573,439 View
Large Qube Research & Technologies Ltd $349,509,970 0.47% 5,569,880 View
Mega AQR CAPITAL MANAGEMENT LLC $328,799,705 0.44% 5,239,836 View
Large Pictet Asset Management Holding SA $321,283,576 0.43% 5,120,057 View
Mega BNP PARIBAS ARBITRAGE, SA $320,138,326 0.43% 5,101,806 View
Mega BARCLAYS PLC $315,265,849 0.43% 5,024,157 View
Large FIRST MANHATTAN CO. LLC. $308,178,866 0.42% 4,911,217 View
Large LAZARD ASSET MANAGEMENT LLC $306,251,625 0.41% 4,880,504 View
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $290,735,621 0.39% 4,633,237 View
Large Ensign Peak Advisors, Inc $282,829,435 0.38% 4,507,242 View
Mega Swiss National Bank $273,000,150 0.37% 4,350,600 View
Mega MILLENNIUM MANAGEMENT LLC $272,197,201 0.37% 4,337,804 View
Mega CITADEL ADVISORS LLC $264,636,453 0.36% 4,217,314 View
Mid MAVERICK CAPITAL LTD $263,241,834 0.36% 4,195,089 View
Mega JANE STREET GROUP, LLC $253,015,341 0.34% 4,032,117 View
Large Man Group plc $233,350,370 0.32% 3,718,731 View
Mega National Pension Service $232,096,248 0.31% 3,698,745 View
Large Point72 Asset Management, L.P. $231,379,016 0.31% 3,687,315 View
Large MARSHALL WACE, LLP $226,591,504 0.31% 3,611,020 View
Large Holocene Advisors, LP $215,153,184 0.29% 3,428,736 View
Mega Sumitomo Mitsui Trust Group, Inc. $214,781,515 0.29% 3,422,813 View
Mega HSBC HOLDINGS PLC $213,331,360 0.29% 3,399,703 View
Mega Mitsubishi UFJ Asset Management Co., Ltd. $211,097,777 0.29% 3,364,108 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $203,002,525 0.27% 3,235,100 View
Mega FIL Ltd $201,685,778 0.27% 3,214,116 View
Large Rathbones Group PLC $199,509,546 0.27% 3,179,435 View
Mega MORGAN STANLEY $198,832,848 0.27% 3,168,651 View
Large RENAISSANCE TECHNOLOGIES LLC $197,788,313 0.27% 3,152,005 View
Mega RAYMOND JAMES FINANCIAL INC $190,075,835 0.26% 3,029,097 View
Mega WELLS FARGO & COMPANY/MN $186,450,453 0.25% 2,971,322 View
Large Alecta Tjanstepension Omsesidigt $179,835,225 0.24% 2,865,900 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $177,519,750 0.24% 2,829,000 View
Large Unisphere Establishment $175,869,425 0.24% 2,802,700 View
Large Aberdeen Group plc $173,584,068 0.23% 2,766,280 View
Mega RHUMBLINE ADVISERS $167,833,722 0.23% 2,674,641 View
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE $165,008,215 0.22% 2,629,613 View
Mega AMERICAN CENTURY COMPANIES INC $164,267,138 0.22% 2,617,803 View
Large Handelsbanken Fonder AB $162,338,077 0.22% 2,587,061 View
Large Mariner, LLC $155,931,239 0.21% 2,484,960 View
Large Temasek Holdings (Private) Ltd $150,563,981 0.20% 2,399,426 View
Large Allianz Asset Management GmbH $150,212,455 0.20% 2,393,824 View
Mid ORBIMED ADVISORS LLC $149,476,775 0.20% 2,382,100 View
Large Russell Investments Group, Ltd. $145,480,849 0.20% 2,318,420 View
Large BANK OF NOVA SCOTIA $144,513,939 0.20% 2,303,011 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $144,322,113 0.20% 2,299,954 View
Mega Clearbridge Investments, LLC $143,033,479 0.19% 2,279,418 View
Large WORLDQUANT MILLENNIUM ADVISORS LLC $142,702,285 0.19% 2,274,140 View
Mega California Public Employees Retirement System $141,894,378 0.19% 2,261,265 View
Mid Ilex Capital Partners (UK) LLP $140,194,795 0.19% 2,234,180 View
Mid MILFORD FUNDS LTD $138,691,367 0.19% 2,210,221 View
Mid Mirova US LLC $138,263,412 0.19% 2,203,401 View
Large Employees Provident Fund Board $133,945,585 0.18% 2,134,591 View
Large Point72 Asset Management, L.P. $132,458,975 0.18% 2,110,900 View
Large Public Sector Pension Investment Board $130,370,843 0.18% 2,077,623 View
Large SEB Asset Management AB $130,301,881 0.18% 2,076,524 View
Large CREDIT AGRICOLE S A $126,853,954 0.17% 2,021,577 View
Large GREAT LAKES ADVISORS, LLC $117,892,940 0.16% 1,878,772 View
Large NATIXIS ADVISORS, LLC $117,219,761 0.16% 1,868,044 View
Mega JANE STREET GROUP, LLC $116,689,900 0.16% 1,859,600 View
Page 1 of 18
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