BOSTON SCIENTIFIC CORP

BSXNYSE

$42.60-0.63 (-1.46%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

BOSTON SCIENTIFIC CORP price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-55.7%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	8.72%	$5.53B	0.08%	Not reported
Vanguard Capital Management LLC	6.53%	$4.14B	0.09%	Not reported
State Street Corp	4.72%	$2.99B	0.09%	Not reported
Primecap Management Co	3.40%	$2.16B	1.28%	Add 55.31%
FMR LLC	3.07%	$1.95B	0.08%	Not reported
Geode Capital Management, LLC	2.25%	$1.42B	0.08%	Not reported
Vanguard Portfolio Management LLC	2.00%	$1.27B	0.06%	Not reported
D. E. Shaw & Co., Inc.	1.71%	$1.09B	0.52%	Not reported
Massachusetts Financial Services Co	1.67%	$1.5B	0.48%	Add 126.06%
JPMorgan Chase & Co	1.61%	$1.04B	0.06%	Not reported
Arrowstreet Capital, Limited Partnership	1.57%	$994M	0.44%	Not reported
Norges Bank	1.42%	$904M	0.09%	Not reported
Two Sigma Investments, LP	1.30%	$826M	0.60%	Not reported
Morgan Stanley	1.27%	$809M	0.04%	Not reported
Jupiter Topco LLC	1.27%	$803M	0.33%	Not reported
Bollard Group LLC	1.24%	$786M	23.93%	Not reported
Goldman Sachs Group Inc	1.14%	$724M	0.06%	Not reported
Capital World Investors	1.13%	$718M	0.08%	Add 9.81%
UBS Group AG	1.10%	$698M	0.09%	Not reported
Wellington Management Group LLP	1.03%	$653M	0.11%	Reduce 18.75%
Amundi	0.96%	$610M	0.15%	Not reported
Capital Research Global Investors	0.95%	$605M	0.08%	Not reported
Invesco Ltd.	0.93%	$589M	0.05%	Not reported
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0.88%	$559M	0.10%	Not reported
Bank of America Corp	0.88%	$556M	0.04%	Not reported
Northern Trust Corp	0.87%	$553M	0.06%	Not reported
FIL Ltd	0.83%	$526M	0.38%	Add 283.68%
Jane Street Group, LLC	0.81%	$516M	0.04%	Not reported
Farallon Capital Management, L.L.C.	0.71%	$449M	2.07%	Add 40.83%
Legal & General Group Plc	0.68%	$432M	0.09%	Not reported
AQR Capital Management LLC	0.65%	$413M	0.14%	Not reported
Canada Pension Plan Investment Board	0.62%	$395M	0.22%	Add 15.26%
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	0.62%	$394M	0.30%	Reduce 30.25%
Charles Schwab Investment Management Inc	0.62%	$394M	0.05%	Not reported
Qube Research & Technologies Ltd	0.60%	$382M	0.35%	Not reported
Nuveen, LLC	0.59%	$371M	0.09%	Not reported
Assenagon Asset Management S.A.	0.56%	$356M	0.22%	Not reported
Vanguard Fiduciary Trust Co	0.56%	$356M	0.08%	Not reported
Royal Bank of Canada	0.55%	$346M	0.05%	Not reported
Bank of New York Mellon Corp	0.53%	$339M	0.06%	Not reported
BNP Paribas Financial Markets	0.51%	$325M	0.11%	Not reported
Deutsche Bank Ag\	0.40%	$254M	0.07%	Not reported
Maverick Capital Ltd	0.40%	$253M	2.24%	Add 41.54%
Ensign Peak Advisors, Inc	0.40%	$251M	0.41%	Add 30.49%
Dimensional Fund Advisors LP	0.39%	$249M	0.05%	Not reported
Millennium Management LLC	0.37%	$211M	0.08%	Not reported
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	0.36%	$230M	0.23%	Reduce 22.76%
Ameriprise Financial Inc	0.35%	$219M	0.04%	Not reported
Clearbridge Investments, LLC	0.35%	$219M	0.18%	Not reported
Citadel Advisors LLC	0.34%	$213M	0.02%	Not reported

50 of 1,395 holders

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