Boston Scientific Ownership | Who Owns Boston Scientific?

Boston Scientific Ownership Summary

Boston Scientific is owned by 21.99% institutional investors, 0.36% insiders, and 77.64% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 9.44% of BSX shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.16% of its assets in Boston Scientific shares.

BSX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Boston Scientific	21.99%	0.36%	77.64%
Sector	Healthcare Stocks	57.39%	9.93%	32.68%
Industry	Medical Device Stocks	40.18%	9.93%	49.89%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	139.03M	9.44%	$12.42B
Vanguard group	132.89M	9.02%	$11.87B
Fmr	132.44M	8.99%	$11.83B
State street	63.96M	4.34%	$5.71B
Primecap management co/ca/	36.93M	2.51%	$3.30B
Wellington management group llp	36.17M	2.46%	$3.23B
Geode capital management	30.63M	2.08%	$2.73B
Capital world investors	27.90M	1.89%	$2.49B
Jpmorgan chase	26.24M	1.78%	$2.34B
Dz bank ag deutsche zentral genossenschafts bank, frankfurt am main	22.31M	1.52%	$1.99B

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bollard group	20.73M	51.33%	$1.85B
Healthinvest partners ab	154.22K	6.56%	$13.83M
Fact capital, lp	158.88K	5.97%	$14.19M
Ecofi investissements sa	115.30K	5.90%	$9.54M
Orbimed advisors	3.16M	5.83%	$282.28M
Cavalier investments	178.43K	5.59%	$15.94M
Kadensa capital	505.00K	5.48%	$45.11M
Sivik global healthcare	110.00K	5.17%	$9.82M
Iron triangle partners lp	495.01K	4.87%	$44.21M
Fullerton fund management	1.55M	4.85%	$138.73B

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	19.73M	0.23%	19.73M
Blackrock funding, inc. /de	139.03M	0.25%	10.33M
Capital world investors	27.90M	0.38%	6.22M
Wellington management group llp	36.17M	0.59%	3.34M
Axiom investors llc /de	3.75M	2.47%	2.54M

Top Sellers

Holder	Shares	% Assets	Change
Massachusetts financial services co /ma/	19.66M	0.55%	-6.01M
Assenagon asset management	949.03K	0.14%	-2.95M
Fmr	132.44M	0.71%	-2.75M
Legal & general group	10.74M	0.25%	-2.74M
Bank of montreal /can/	2.38M	0.10%	-2.52M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	19.73M	0.23%	19.73M	$1.76B
Raymond james financial	2.14M	0.07%	2.14M	$190.78M
Kadensa capital	505.00K	5.48%	505.00K	$45.11M
Iron triangle partners lp	495.01K	4.87%	495.01K	$44.21M
Temasek (private)	406.49K	0.14%	406.49K	$36.31M

Sold Out

Holder	Change
Mendota financial group	-3.00
Capstone investment advisors	-5.00
Migdal insurance & financial	-8.00
Sugar maple asset management	-15.00
Planned solutions	-38.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2024	812	-43.92%	323,911,142	-75.12%	21	0.28%	437	-39.14%	244	-48.31%
Sep 30, 2024	1,448	5.93%	1,302,103,258	-1.70%	88	1.09%	718	0.42%	472	14.29%
Jun 30, 2024	1,367	7.72%	1,324,676,987	1.42%	90	1.14%	715	19.37%	413	-5.71%
Mar 31, 2024	1,269	6.73%	1,306,192,412	-2.12%	88	1.07%	599	-0.50%	438	15.87%
Dec 31, 2023	1,189	8.68%	1,334,422,339	0.16%	91	1.10%	602	11.90%	378	9.57%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	46.63M	3.16%	62.58K
Vanguard Total Stock Mkt Idx Inv	46.50M	3.15%	166.21K
Vanguard Institutional 500 Index Trust	40.87M	2.77%	274.59K
Vanguard PRIMECAP Inv	25.29M	1.72%	-409.57K
Fidelity 500 Index	18.46M	1.25%	82.20K
SPDR® S&P 500 ETF	18.33M	1.24%	-268.46K
iShares Core S&P 500 ETF	17.98M	1.22%	52.08K
SPDR® S&P 500® ETF Trust	17.84M	1.21%	-93.53K
SPDR® S&P 500® ETF	17.64M	1.20%	-296.17K
Capital Group Growth Fnd of Amer Comp	16.99M	1.15%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Apr 01, 2025	Mahoney Michael F	Chairman, President & CEO	Sell	$16.45M
Mar 21, 2025	Brown Vance R	SVP, GC and Corp. Secretary	Sell	$486.70K
Mar 03, 2025	Woodworth Emily	SVP, Global Controller and CAO	Sell	$750.46K
Mar 04, 2025	Woodworth Emily	SVP, Global Controller and CAO	Sell	$50.43K
Feb 28, 2025	Woodworth Emily	SVP, Global Controller and CAO	Sell	$999.87K

Insider Transactions Trends

Date	Buy	Sell
2025 Q2	-	1
2025 Q1	-	26
2024 Q4	-	12
2024 Q3	-	6
2024 Q2	-	14

BSX Ownership FAQ

Who Owns Boston Scientific?

Boston Scientific shareholders are primarily institutional investors at 21.99%, followed by 0.36% insiders and 77.65% retail investors. The average institutional ownership in Boston Scientific's industry, Medical Device Stocks, is 40.18%, which Boston Scientific falls below.

Who owns the most shares of Boston Scientific?

Boston Scientific’s largest shareholders are Blackrock funding, inc. /de (139.03M shares, 9.44%), Vanguard group (132.89M shares, 9.02%), and Fmr (132.44M shares, 8.99%). Together, they hold 27.46% of Boston Scientific’s total shares outstanding.

Does Blackrock own Boston Scientific?

BlackRock is not among the top 10 institutional shareholders of Boston Scientific.

Who is Boston Scientific’s biggest shareholder by percentage of total assets invested?

Bollard group is Boston Scientific’s biggest shareholder by percentage of total assets invested, with 51.33% of its assets in 20.73M Boston Scientific shares, valued at 1.85B$.

Who is the top mutual fund holder of Boston Scientific shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Boston Scientific shares, with 3.16% of its total shares outstanding invested in 46.63M Boston Scientific shares.

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