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Boston Scientific
BSX

Overview Fund Activity

1,660 hedge funds and large institutions have $145B invested in Boston Scientific in 2025 Q2 according to their latest regulatory filings, with 151 funds opening new positions, 744 increasing their positions, 539 reducing their positions, and 86 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,660
Holders Change
+40
Holders Change %
+2.47%
% of All Funds
22.26%
Holding in Top 10
40
Holding in Top 10 Change
-10
Holding in Top 10 Change %
-20%
% of All Funds
0.54%
New
151
Increased
744
Reduced
539
Closed
86
Calls
$1.08B
Puts
$859M
Net Calls
+$225M
Net Calls Change
-$30.7M

Top Buyers

1
Edgewood Management
Edgewood Management
Connecticut
$747M
2
BlackRock
BlackRock
New York
$15.8B
3
VOYA Investment Management
VOYA Investment Management
Georgia
$939M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
$726M
5
Bessemer Group
Bessemer Group
New Jersey
$314M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
$11.6B
2
JPMorgan Chase & Co
JPMorgan Chase & Co
New York
$2.76B
3
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
$1.38B
4
Millennium Management
Millennium Management
New York
$444M
5
Winslow Capital Management
Winslow Capital Management
Minnesota
$1.14M
Name Holding Trade Value Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$15.8B +$539M +5,016,674 +4%
Vanguard Group
2
Vanguard Group
Pennsylvania
$14.7B +$273M +2,545,381 +2%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$11.6B -$2.18B -20,286,637 -16%
State Street
4
State Street
Massachusetts
$7B +$76.6M +713,379 +1%
Primecap Management
5
Primecap Management
California
$3.72B -$197M -1,834,224 -5%
Bank of America
6
Bank of America
North Carolina
$3.64B +$246M +2,288,065 +7%
Wellington Management Group
7
Wellington Management Group
Massachusetts
$3.51B -$58.9M -548,377 -2%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$3.47B +$66.6M +622,602 +2%
Capital World Investors
9
Capital World Investors
California
$3.06B -$3.65M -33,953 -0.1%
JPMorgan Chase & Co
10
JPMorgan Chase & Co
New York
$2.76B -$630M -5,862,792 -19%
Morgan Stanley
11
Morgan Stanley
New York
$2.18B +$132M +1,226,748 +6%
BG
12
Bollard Group
Massachusetts
$2.16B -$44.2M -411,383 -2%
Norges Bank
13
Norges Bank
Norway
$2.09B +$2.09B +19,457,562 New
Invesco
14
Invesco
Georgia
$1.81B +$24.3M +226,578 +1%
DZ Bank
15
DZ Bank
Germany
$1.78B -$121M -1,128,735 -6%
Northern Trust
16
Northern Trust
Illinois
$1.53B -$3.03M -28,176 -0.2%
Goldman Sachs
17
Goldman Sachs
New York
$1.5B +$553K +5,149 +0%
Massachusetts Financial Services
18
Massachusetts Financial Services
Massachusetts
$1.38B -$393M -3,662,461 -22%
UBS AM
19
UBS AM
Illinois
$1.37B +$156M +1,450,128 +13%
Janus Henderson Group
20
Janus Henderson Group
United Kingdom
$1.31B -$197M -1,832,206 -13%
UBS Group
21
UBS Group
Switzerland
$1.24B +$239M +2,224,498 +24%
Bank of New York Mellon
22
Bank of New York Mellon
New York
$1.2B -$58.6M -545,729 -5%
T. Rowe Price Associates
23
T. Rowe Price Associates
Maryland
$1.18B +$44.1M +410,793 +4%
Legal & General Group
24
Legal & General Group
United Kingdom
$1.07B -$94M -874,798 -8%
Amundi
25
Amundi
France
$1.06B -$219M -2,108,961 -17%
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