BOSTON SCIENTIFIC CORP

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BSX·101137107·US·Common Stock·Healthcare - Medical Devices-13D/G

BSX (BOSTON SCIENTIFIC CORP) is held by 357 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($5.5B), VANGUARD CAPITAL MANAGEMENT LLC ($4.1B), STATE STREET CORP ($3B). Net institutional sentiment: Mixed. In Q2 2026, 7 members of Congress and 166 funds bought BSX.

357

Holders

(33 Elite)

$51.2B

Total Value

45% (369)

Consensus

166 buying - 203 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)47

Insider (Form 4)46

Activist (13D/13G)60

Congressional (STOCK Act)59

Holder Quality

18

★★★★★

Elite

60

★★★★

Strong

26

★★★

Solid

64

★★

Below

29

★

Weak

Held by 357 funds

33 elite

Who's Trading

Source dates: Price Sep 1, 2026 · Insiders Aug 26, 2026 · Activists Aug 6, 2026 · Congress Jul 21, 2026

InsiderMEMorano Susan EBuy $100KAug 25, 2026

ActivistFMR LLC3.1%Aug 6, 2026

CongressGilbert CisnerosSale $1,001 - $15,000Jun 5, 2026

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Top Holders

Top Holders (357)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Decreased	129.7M(-1.6%)	$5.5B	0.1%	-48.04%	0
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	97.1M(+0.7%)	$4.1B	0.1%	-25.19%	32
STATE STREET CORP	Increased	70.1M(+3.1%)	$3B	0.1%	-21.78%	33
PRIMECAP MANAGEMENT CO/CA/	Increased	50.5M(+55.3%)	$2.2B	1.3%	+19.48%	71
FMR LLC	Decreased	45.7M(-38.4%)	$2B	0.1%	-47.56%	0
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	Increased	24.9M(+126.1%)	$1.5B	0.5%	+11.08%	62
GEODE CAPITAL MANAGEMENT, LLC	Increased	33.4M(+0.5%)	$1.4B	0.1%	-5.37%	32
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Decreased	29.8M(-0.0%)	$1.3B	0.1%	-25.35%	0
DED. E. Shaw & Co., Inc.	Increased	25.5M(+4.7%)	$1.1B	0.5%	-39.82%	47
JPMORGAN CHASE & CO	Decreased	23.9M(-28.3%)	$1B	0.1%	-46.22%	0
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Increased	23.3M(+67.7%)	$994.2M	0.4%	-21.55%	56
TWO SIGMA INVESTMENTS, LP	Increased	19.4M(+105.7%)	$826.2M	0.6%	-16.88%	72
MORGAN STANLEY	Decreased	18.9M(-14.9%)	$808.7M	0.0%	-42.58%	0
GOLDMAN SACHS GROUP INC	Decreased	17M(-10.3%)	$723.6M	0.1%	-46.58%	0
Capital World Investors	Increased	16.8M(+9.8%)	$717.6M	0.1%	-32.66%	35
UBS Group AG	Increased	16.4M(+10.3%)	$697.9M	0.1%	-34.62%	35
WELLINGTON MANAGEMENT GROUP LLP	Decreased	15.3M(-18.8%)	$653.1M	0.1%	-17.62%	0
Amundi	Increased	14.3M(+1.2%)	$610.2M	0.1%	-24.05%	38
Capital Research Global Investors	Increased	14.2M(+100.3%)	$605.3M	0.1%	-26.26%	51
Invesco Ltd.	Increased	13.8M(+52.5%)	$589M	0.0%	-11.06%	44

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer