Boston Scientific (BSX) Institutional Ownership

$48.32 -0.79 (-1.61%)

Closing price 05/29/2026 03:59 PM Eastern

Extended Trading

$48.39 +0.07 (+0.14%)

As of 05/29/2026 07:59 PM Eastern

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Current Institutional Ownership Percentage: 89.07%
Number of Institutional Buyers (last 12 months): 1312
Total Institutional Inflows (last 12 months): $21.19B

Number of Institutional Sellers (last 12 months): 900
Total Institutional Outflows (last 12 months): $13.55B

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BSX Institutional Buying and Selling by Quarter

Boston Scientific Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
5/29/2026	Asset Dedication LLC	679	$43K	0.0%	-28.2%	0.000%
5/28/2026	Blue Fin Capital Inc.	14,795	$928K	0.2%	+12.9%	0.001%
5/28/2026	Avidity Partners Management LP	60,000	$3.77M	0.7%	-47.6%	0.004%
5/26/2026	Glenmede Trust Co. NA	121,568	$7.63M	0.0%	+12.6%	0.008%
5/26/2026	Axiom Investment Management LLC	2,864	$180K	0.1%	N/A	0.000%
5/22/2026	Groupama Asset Managment	1,375,261	$86.30M	1.2%	+0.6%	0.093%
5/22/2026	Segall Bryant & Hamill LLC	67,359	$4.23M	0.1%	-10.8%	0.005%
5/21/2026	Compass Capital Management Inc.	710,874	$44.61M	2.6%	+21.7%	0.048%
5/21/2026	Essential Partners LLC	1,016	$64K	0.0%	+2,209.1%	0.000%
5/21/2026	Vestor Capital LLC	7,178	$450K	0.0%	N/A	0.000%
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5/21/2026	Groupe la Francaise	346,901	$21.85M	0.3%	-34.0%	0.023%
5/20/2026	Liontrust Investment Partners LLP	98,662	$6.19M	0.1%	-18.1%	0.007%
5/19/2026	Sonoma Allocations LLC	3,294	$204K	0.1%	-15.2%	0.000%
5/19/2026	Paragon Private Wealth Management LLC	15,447	$969K	0.3%	-3.2%	0.001%
5/19/2026	Bank of America Corp DE	22,756,646	$1.43B	0.1%	-9.4%	1.531%
5/19/2026	Edgestream Partners L.P.	85,752	$5.38M	0.2%	+340.7%	0.006%
5/19/2026	Kentucky Retirement Systems	110,238	$6.92M	0.2%	+18.9%	0.007%
5/19/2026	Janus Henderson Group PLC	16,497,366	$1.04B	0.5%	+31.0%	1.110%
5/19/2026	Oddo BHF Asset Management Sas	327,138	$20.53M	0.8%	-42.4%	0.022%
5/19/2026	Bull Harbor Capital LLC	8,726	$548K	0.1%	N/A	0.001%
5/19/2026	Strategic Investment Advisors MI	13,808	$812K	0.1%	N/A	0.001%
5/19/2026	Arkadios Wealth Advisors	46,610	$2.93M	0.0%	+4.1%	0.003%
5/19/2026	Encore Global Management LP	46,500	$2.92M	2.0%	N/A	0.003%
5/18/2026	ADAR1 Capital Management LLC	10,000	$628K	0.0%	+100.0%	0.001%
5/18/2026	Sunbelt Securities Inc.	1,901	$119K	0.0%	+34.7%	0.000%
5/18/2026	Amundi	14,122,913	$886.21M	0.2%	+13.8%	0.950%
5/18/2026	EverSource Wealth Advisors LLC	13,502	$847K	0.0%	+75.4%	0.001%
5/18/2026	California State Teachers Retirement System	2,299,954	$144.32M	0.2%	-2.4%	0.155%
5/18/2026	Resources Management Corp CT ADV	48,685	$3.06M	0.4%	+35.5%	0.003%
5/18/2026	Royal Bank of Canada	6,273,263	$393.65M	0.1%	+3.7%	0.422%
5/18/2026	Rock Springs Capital Management LP	515,300	$32.34M	1.9%	+29.1%	0.035%
5/18/2026	Eagle Health Investments LP	293,152	$18.40M	3.2%	N/A	0.020%
5/18/2026	Empowered Funds LLC	91,958	$5.77M	0.0%	-8.2%	0.006%
5/18/2026	Evelyn Partners Investment Management LLP	168,771	$10.59M	0.3%	+18.9%	0.011%
5/18/2026	Evelyn Partners Investment Management Services Ltd	7,845	$492K	0.1%	+357.4%	0.001%
5/18/2026	Exome Asset Management LLC	48,347	$3.03M	1.6%	N/A	0.003%
5/16/2026	The Manufacturers Life Insurance Company	2,629,613	$165.01M	0.1%	+155.7%	0.177%
5/16/2026	KCM Investment Advisors LLC	9,602	$603K	0.0%	-6.6%	0.001%
5/16/2026	Glen Eagle Advisors LLC	21,617	$1.36M	0.2%	+63.3%	0.001%
5/16/2026	Quantinno Capital Management LP	574,482	$36.05M	0.1%	-15.5%	0.039%
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5/16/2026	Clough Capital Partners L P	14,350	$900K	0.1%	-89.6%	0.001%
5/16/2026	Lazard Asset Management LLC	4,880,504	$306.25M	0.5%	+24.8%	0.328%
5/16/2026	Orbimed Advisors LLC	2,382,100	$149.48M	2.7%	-1.5%	0.160%
5/15/2026	Gateway Wealth Partners LLC	3,641	$228K	0.0%	N/A	0.000%
5/15/2026	Weiss Asset Management LP	13,080	$821K	0.0%	N/A	0.001%
5/15/2026	Delta Global Management LP	28,012	$1.76M	0.1%	N/A	0.002%
5/15/2026	OMERS ADMINISTRATION Corp	79,936	$5.02M	0.0%	+7.1%	0.005%
5/15/2026	Bradley Foster & Sargent Inc. CT	627,470	$39.37M	0.6%	+27.3%	0.042%
5/15/2026	Lombard Odier Asset Management Switzerland SA	35,102	$2.20M	0.1%	-34.6%	0.002%
5/15/2026	Lombard Odier Asset Management Europe Ltd	151,463	$9.50M	0.5%	+5.7%	0.010%
5/15/2026	Lombard Odier Asset Management USA Corp	19,398	$1.22M	0.1%	-12.3%	0.001%
5/15/2026	Aristotle Atlantic Partners LLC	223,520	$14.03M	0.7%	+5.9%	0.015%
5/15/2026	Waverly Advisors LLC	162,989	$10.23M	0.1%	+8.5%	0.011%
5/15/2026	Unisphere Establishment	2,802,700	$175.87M	1.5%	+28.8%	0.189%
5/15/2026	Entropy Technologies LP	282,967	$17.76M	0.8%	+82.5%	0.019%
5/15/2026	Sustainable Insight Capital Management LLC	3,329	$209K	0.1%	N/A	0.000%
5/15/2026	St. Louis Trust Co	10,214	$641K	0.1%	+14.3%	0.001%
5/15/2026	Bridgewater Advisors Inc.	9,586	$602K	0.0%	-4.6%	0.001%
5/15/2026	Boreal Capital Management LLC	646	$41K	0.0%	+155.3%	0.000%
5/14/2026	Healthcare of Ontario Pension Plan Trust Fund	789,092	$49.52M	0.1%	+36.4%	0.053%
5/14/2026	Dai ichi Life Insurance Company Ltd	231,497	$14.53M	0.4%	-31.2%	0.016%
5/14/2026	Renaissance Technologies LLC	3,152,005	$197.79M	0.3%	+32.3%	0.212%
5/14/2026	Bollard Group LLC	18,532,173	$1.16B	34.3%	-2.5%	1.247%
5/14/2026	Gabelli Funds LLC	325,476	$20.42M	0.1%	+1.5%	0.022%
5/14/2026	Gamco Investors INC. ET AL	155,146	$9.74M	0.1%	+39.0%	0.010%
5/14/2026	Hilltop Holdings Inc.	6,074	$381K	0.0%	-55.4%	0.000%
5/14/2026	GC Wealth Management RIA LLC	5,758	$361K	0.0%	-11.8%	0.000%
5/14/2026	Public Employees Retirement System of Ohio	605,201	$37.98M	0.1%	-3.4%	0.041%
5/14/2026	Compound Planning Inc.	12,745	$800K	0.0%	-17.4%	0.001%
5/14/2026	Modern Wealth Management LLC	3,442	$213K	0.0%	-23.8%	0.000%
5/14/2026	Arrowstreet Capital Limited Partnership	13,891,668	$871.70M	0.5%	+25.9%	0.935%
5/14/2026	Caxton Associates LLP	5,445	$342K	0.0%	-67.5%	0.000%
5/14/2026	Pincus Capital Management LP	3,652	$229K	0.2%	-18.5%	0.000%
5/14/2026	Bowen Hanes & Co. Inc.	10,550	$662K	0.0%	-19.9%	0.001%
5/14/2026	Bank of Nova Scotia	2,303,011	$144.52M	0.2%	+15.5%	0.155%
5/14/2026	Gibbs Wealth Management	3,573	$224K	0.0%	-61.8%	0.000%
5/14/2026	Sei Investments Co.	1,021,347	$64.09M	0.1%	-53.7%	0.069%
5/13/2026	Wealthspire Retirement LLC	65,215	$4.09M	0.2%	+1.1%	0.004%
5/13/2026	Aureus Asset Management LLC	255,363	$16.02M	1.1%	N/A	0.017%
5/13/2026	Fairbanks Capital Management Inc.	24,871	$1.56M	1.0%	-2.4%	0.002%
5/13/2026	Measured Wealth Private Client Group LLC	545	$34K	0.0%	+244.9%	0.000%
5/13/2026	NewEdge Wealth LLC	56,101	$3.52M	0.0%	-22.7%	0.004%
5/13/2026	Arvest Bank Trust Division	58,889	$3.70M	0.2%	-1.2%	0.004%
5/13/2026	CI Investments Inc.	703,393	$44.14M	0.2%	-42.4%	0.047%
5/13/2026	First Trust Advisors LP	184,386	$11.57M	0.0%	+40.7%	0.012%
5/12/2026	Westpac Banking Corp	14,346	$900K	0.1%	-7.6%	0.001%
5/12/2026	Phillip James Consulting Co.	3,520	$220K	0.2%	N/A	0.000%
5/12/2026	Fortis Capital Management LLC	86,695	$5.44M	0.6%	+102.6%	0.006%
5/12/2026	Clal Insurance Enterprises Holdings Ltd	448	$28K	0.0%	N/A	0.000%
5/12/2026	Meiji Yasuda America Inc	48,707	$3.06M	0.8%	-1.4%	0.003%
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5/12/2026	Temasek Holdings Private Ltd	2,399,426	$150.56M	0.5%	+15.3%	0.161%
5/12/2026	Danica Pension Livsforsikringsaktieselskab	970,286	$60.89M	1.2%	-51.4%	0.065%
5/12/2026	ABN Amro Investment Solutions	894,310	$56.12M	0.7%	+30.2%	0.060%
5/8/2026	PNC Financial Services Group Inc.	1,159,624	$72.77M	0.0%	-2.4%	0.078%
5/8/2026	Oslo Pensjonsforsikring AS	3,475	$218K	0.0%	N/A	0.000%
5/8/2026	Baader Bank Aktiengesellschaft	11,770	$728K	0.1%	-50.5%	0.001%
5/8/2026	Andra AP fonden	169,928	$10.66M	0.1%	+144.4%	0.011%
5/8/2026	Glenview Trust Co	221,332	$13.89M	0.2%	+631.7%	0.015%
5/8/2026	Cassaday & Co Wealth Management LLC	515	$32K	0.0%	N/A	0.000%
5/8/2026	Commerzbank Aktiengesellschaft FI	16,438	$1.03M	0.0%	-74.5%	0.001%

BSX Institutional Ownership - Frequently Asked Questions

During the previous two years, 1,926 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), Geode Capital Management LLC ($3.07B), Primecap Management Co. CA ($2.97B), 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 1,737 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: Norges Bank ($62.26M), Assenagon Asset Management S.A. ($10.06M), Vanguard Group Inc. ($8.40M), Parnassus Investments LLC ($7.88M), Arrowstreet Capital Limited Partnership ($7.85M), Edgewood Management LLC ($6.95M), and Capital World Investors ($6.72M).

Institutional investors have bought a total of 223,928,824 shares in the last 24 months. This purchase volume represents approximately $21.19B in transactions.

Of the 900 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 ($22.94M), Massachusetts Financial Services Co. MA ($7.44M), Artisan Partners Limited Partnership ($7.09M), Primecap Management Co. CA ($5.40M), Voya Investment Management LLC ($5.00M), Jennison Associates LLC ($4.57M), and Bessemer Group Inc. ($3.87M).

Institutional investors have sold a total of 145,562,385 shares in the last 24 months. This volume of shares sold represents approximately $13.55B in transactions.

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This page (NYSE:BSX) was last updated on 5/31/2026 by MarketBeat.com Staff.

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Boston Scientific (BSX) Institutional Ownership

BSX Institutional Buying and Selling by Quarter

Boston Scientific Major Shareholders & Ownership History

BSX Institutional Ownership - Frequently Asked Questions

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Boston Scientific (BSX) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Boston Scientific (NYSE:BSX)

BSX Institutional Buying and Selling by Quarter

Boston Scientific Major Shareholders & Ownership History

BSX Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of BSX shares?

What percentage of Boston Scientific's stock is owned by institutional investors?

Which institutional investors have been buying Boston Scientific's stock?

How much institutional buying is happening at Boston Scientific?

Which of Boston Scientific's major shareholders have been selling company stock?

How much institutional selling is happening at Boston Scientific?

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