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Boston Scientific (BSX) Institutional Ownership

Boston Scientific logo
$50.19 -1.82 (-3.50%)
As of 12:52 PM Eastern
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Institutional Ownership Changes (13F Filings) for Boston Scientific (NYSE:BSX)

Current
Institutional Ownership
Percentage
89.07%
Number of
Institutional Buyers
(last 12 months)
1188
Total
Institutional Inflows
(last 12 months)
$26.67B
Number of
Institutional Sellers
(last 12 months)
787
Total
Institutional Outflows
(last 12 months)
$11.15B
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BSX Institutional Buying and Selling by Quarter

Boston Scientific Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/20/2026 Senator Investment Group LP300,000$12.80M0.5%N/A0.021%
8/20/2026 Quantitative Investment Management LLC213,737$9.12M1.0%+128.1%0.015%
8/20/2026 Ancora Advisors LLC3,585$153K0.0%-55.5%0.000%
8/20/2026 Moore Capital Management LP189,256$8.08M0.1%N/A0.013%
8/20/2026 Sigma Planning Corp8,759$374K0.0%+15.9%0.001%
8/20/2026 Two Sigma Securities LLC98,200$4.19M0.4%+261.3%0.007%
8/20/2026 Benjamin Edwards Inc.47,458$2.03M0.0%+5.0%0.003%
8/20/2026 Northwestern Mutual Wealth Management Co.839,483$35.83M0.0%-1.7%0.058%
8/20/2026 Wedbush Securities Inc.10,620$453K0.0%+16.8%0.001%
8/20/2026 Meiji Yasuda Life Insurance Co14,895$636K0.0%-53.6%0.001%
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8/20/2026 Cullinan Associates Inc.24,299$1.04M0.1%+2.1%0.002%
8/20/2026 Greenwood Capital Associates LLC78,520$3.35M0.3%N/A0.005%
8/20/2026 Greenleaf Trust23,033$983K0.0%-4.7%0.002%
8/19/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC13,091,481$558.74M0.1%-3.1%0.903%
8/19/2026 New Mexico Educational Retirement Board73,762$3.15M0.1%+7.3%0.005%
8/19/2026 Royal London Asset Management Ltd.753,076$32.14M0.1%+13.1%0.052%
8/19/2026 Toth Financial Advisory Corp823$35K0.0%+569.1%0.000%
8/19/2026 Mufg Securities Americas Inc.44,767$1.91M0.1%+9.1%0.003%
8/19/2026 Van ECK Associates Corp94,958$4.05M0.0%+7.0%0.007%
8/19/2026 Nissay Asset Management Corp Japan198,026$8.45M0.0%+4.5%0.014%
8/19/2026 Tandem Capital Management Corp ADV40,972$1.75M0.8%-19.9%0.003%
8/19/2026 Wellington Management Group LLP15,301,828$653.08M0.1%-18.8%1.056%
8/19/2026 Lombard Odier Asset Management Europe Ltd61,349$2.62M0.0%N/A0.004%
8/19/2026Kingsview Wealth Management LLC5,395$230K0.0%N/A0.000%
8/18/2026 Beacon Pointe Advisors LLC15,843$679K0.0%N/A0.001%
8/18/2026 Livforsakringsbolaget Skandia Omsesidigt9,827$419K0.0%N/A0.001%
8/18/2026 Rakuten Investment Management Inc.243,100$10.57M0.0%N/A0.017%
8/18/2026 Glenview Trust Co254,089$10.85M0.1%N/A0.018%
8/18/2026 Empowered Funds LLC114,625$4.89M0.0%N/A0.008%
8/18/2026 United Capital Financial Advisors LLC40,446$1.73M0.0%N/A0.003%
8/18/2026 Glazer Capital LLC17,999$768K0.0%N/A0.001%
8/18/2026 Equitable Holdings Inc.29,331$1.25M0.0%N/A0.002%
8/18/2026 Brasada Capital Management LP61,699$2.63M0.0%N/A0.004%
8/18/2026 Coastal Bridge Advisors LLC23,959$1.02M0.1%N/A0.002%
8/18/2026 Public Employees Retirement System of Ohio571,485$24.39M0.1%N/A0.039%
8/18/2026 MASTERINVEST Kapitalanlage GmbH66,131$2.82M0.2%N/A0.005%
8/17/2026 Proficio Capital Partners LLC10,166$434K0.0%N/A0.001%
8/17/2026 Pure Financial Advisors LLC5,234$223K0.0%N/A0.000%
8/17/2026 Transamerica Financial Advisors LLC2,299$98K0.0%N/A0.000%
8/17/2026 Corient Private Wealth LP287,815$11.24M0.0%N/A0.020%
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8/17/2026 Ausdal Financial Partners Inc.7,581$324K0.0%N/A0.001%
8/17/2026 Bank of America Corp DE13,027,783$556.03M0.0%N/A0.899%
8/15/2026 Freestone Grove Partners LP28,720$1.23M0.0%N/A0.002%
8/15/2026 Caisse de depot et placement du Quebec3,120,394$133.18M0.2%N/A0.215%
8/15/2026 Gallagher Fiduciary Advisors LLC6,710$286K0.0%N/A0.000%
8/15/2026 Man Group plc3,225,164$137.65M0.2%N/A0.223%
8/15/2026 Jupiter Topco LLC18,822,853$803.36M0.3%N/A1.299%
8/14/2026 ADAR1 Capital Management LLC7,500$320K0.0%N/A0.001%
8/14/2026 Hsbc Holdings PLC3,533,722$150.60M0.1%+3.9%0.244%
8/14/2026 EFG International AG1,384$59K0.0%N/A0.000%
8/14/2026 Ancora Advisors LLC3,585$153K0.0%N/A0.000%
8/14/2026 Primecap Management Co. CA50,520,914$2.16B1.3%N/A3.486%
8/14/2026 Canada Pension Plan Investment Board9,262,404$395.32M0.2%N/A0.639%
8/14/2026 Manatuck Hill Partners LLC12,738$544K0.2%N/A0.001%
8/14/2026 Osterweis Capital Management Inc.708,949$30.26M1.4%N/A0.049%
8/14/2026 Parkman Healthcare Partners LLC180,481$7.70M0.8%N/A0.012%
8/14/2026 Legal & General Group Plc10,119,264$431.89M0.1%N/A0.698%
8/14/2026 The Manufacturers Life Insurance Company 2,702,583$115.35M0.1%N/A0.186%
8/14/2026 Sone Capital Management LLC23,801$1.02M0.1%N/A0.002%
8/14/2026 L2 Asset Management LLC8,487$362K0.0%N/A0.001%
8/14/2026 Vega Investment Solutions11,186$477K0.1%N/A0.001%
8/14/2026 Cetera Trust Company N.A746$32K0.0%N/A0.000%
8/14/2026 Aberdeen Wealth Management LLC7,720$329K0.2%N/A0.001%
8/13/2026 Ally Financial Inc.66,000$2.82M0.4%N/A0.005%
8/13/2026 Cibc World Market Inc.152,542$6.51M0.0%N/A0.011%
8/13/2026 Castlefield Investment Partners LLP56,907$2.43M1.6%N/A0.004%
8/13/2026 OMERS ADMINISTRATION Corp84,750$3.62M0.0%N/A0.006%
8/13/2026 Osmosis Investment Management UK Ltd68,551$2.93M0.1%N/A0.005%
8/13/2026 Saranac Partners Ltd150,265$6.42M1.9%N/A0.010%
8/13/2026 Connor Clark & Lunn Investment Management Ltd.1,467,148$62.62M0.1%N/A0.101%
8/13/2026 Meiji Yasuda Asset Management Co Ltd.10,154$433K0.0%N/A0.001%
8/13/2026 LM Advisors LLC6,785$294K0.0%N/A0.000%
8/13/2026 Clear Harbor Asset Management LLC18,726$799K0.0%N/A0.001%
8/13/2026 First Nebraska Trust Co115,159$4.92M0.4%N/A0.008%
8/13/2026 Bank of Nova Scotia1,323,635$56.50M0.1%N/A0.091%
8/12/2026 Kirtland Hills Capital Management LLC9,744$416K0.1%N/A0.001%
8/12/2026 Elevation Point Wealth Partners LLC30,795$1.31M0.0%N/A0.002%
8/12/2026 Alta Advisers Ltd5,782$247K0.1%N/A0.000%
8/12/2026 Daiichi Life Insurance Co. Ltd.36,343$1.55M0.0%N/A0.003%
8/12/2026 Commerce Bank58,917$2.52M0.0%N/A0.004%
8/12/2026 Northwestern Mutual Wealth Management Co.839,483$35.83M0.0%N/A0.058%
8/12/2026 Quantbot Technologies LP235,949$10.07M0.4%N/A0.016%
8/12/2026 Evolve Private Wealth LLC13,789$589K0.0%N/A0.001%
8/12/2026 Varma Mutual Pension Insurance Co337,981$14.43M0.1%N/A0.023%
8/12/2026 Westpac Banking Corp22,912$978K0.1%N/A0.002%
8/12/2026 TRB Wealth Management LLC5,793$247K0.0%N/A0.000%
8/12/2026 Sumitomo Life Insurance Co.177,353$7.57M0.1%N/A0.012%
8/12/2026 William Blair Investment Management LLC46,375$1.98M0.0%N/A0.003%
8/12/2026 Landscape Capital Management L.L.C.97,691$4.17M0.3%N/A0.007%
8/12/2026 Korea Investment CORP551,580$23.54M0.0%N/A0.038%
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8/12/2026 EP Wealth Advisors LLC40,819$1.74M0.0%N/A0.003%
8/12/2026 Heartland Bank & Trust Co7,505$320K0.1%N/A0.001%
8/12/2026 Rakuten Securities Inc.704$30K0.0%N/A0.000%
8/12/2026 Ieq Capital LLC387,250$16.53M0.1%N/A0.027%
8/12/2026 Callan Family Office LLC52,745$2.25M0.0%N/A0.004%
8/12/2026 Keebeck Wealth Management8,330$356K0.0%N/A0.001%
8/11/2026 Keating Financial Advisory Services Inc.1,094$47K0.0%N/A0.000%
8/11/2026 Encore Global Management LP73,700$3.15M3.1%N/A0.005%
8/11/2026 B. Metzler seel. Sohn & Co. AG333,583$14.24M0.1%N/A0.023%
8/11/2026 TrinityBridge Ltd6,819$291K0.0%N/A0.000%


BSX Institutional Ownership - Frequently Asked Questions

During the previous two years, 1,939 institutional investors and hedge funds held shares of Boston Scientific. The most heavily invested institutionals were Vanguard Group Inc. ($13.32B), FMR LLC ($11.83B), State Street Corp ($6.28B), BlackRock Inc. ($5.53B), Geode Capital Management LLC ($3.07B), Capital World Investors ($2.59B), and Norges Bank ($2.20B).Learn more on Boston Scientific's institutional investors.

89.07% of Boston Scientific's stock is owned by institutional investors. Learn more on BSX's institutional investor holdings.

Of the 1,753 institutional investors that purchased Boston Scientific's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($129.68M), Norges Bank ($62.26M), Primecap Management Co. CA ($50.52M), Jupiter Topco LLC ($18.82M), Bank of America Corp DE ($13.03M), Legal & General Group Plc ($11.00M), and Assenagon Asset Management S.A. ($10.06M).

Institutional investors have bought a total of 442,138,862 shares in the last 24 months. This purchase volume represents approximately $26.67B in transactions.

Of the 786 institutional investors that sold Boston Scientific's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Wellington Management Group LLP ($26.47M), Artisan Partners Limited Partnership ($5.95M), Assenagon Asset Management S.A. ($5.88M), Jennison Associates LLC ($4.57M), Voya Investment Management LLC ($4.36M), Bessemer Group Inc. ($3.87M), and Massachusetts Financial Services Co. MA ($3.77M).

Institutional investors have sold a total of 130,790,689 shares in the last 24 months. This volume of shares sold represents approximately $11.15B in transactions.


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Institutional ownership data for NYSE:BSX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/20/2026. New 13F filings are added each quarter as they're published.
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