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Boston Scientific

1,663 hedge funds and large institutions have $84.2B invested in Boston Scientific in 2026 Q1 according to their latest regulatory filings, with 190 funds opening new positions, 674 increasing their positions, 632 reducing their positions, and 276 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

31% less first-time investments, than exits

New positions opened: 190 | Existing positions closed: 276

32% less funds holding in top 10

Funds holding in top 10: 3725 (-12)

35% less capital invested

Capital invested by funds: $130B → $84.2B (-$45.8B)

Holders
1,663
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
25
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.56B
Puts
$640M
Net Calls
Net Calls Change

Top Buyers

1 +$1.05B
2 +$730M
3 +$706M
4
JP Morgan Chase
JP Morgan Chase
New York
+$638M
5
Two Sigma Investments
Two Sigma Investments
New York
+$555M
Name Holding Trade Value Shares
Change
Change in
Stake
MHR
1376
Matthew Hamilton Rosenberg
$113K
AIM
1377
Anchor Investment Management
South Carolina
$113K
NAAA
1378
New Age Alpha Advisors
New York
$113K
ESC
1379
Eurizon SLJ Capital
$112K
DWS
1380
Dynamic Wealth Strategies
California
$111K
WB
1381
Webster Bank
Connecticut
$110K
GWS
1382
Greykasell Wealth Strategies
California
$109K
OWA
1383
Opal Wealth Advisors
New York
$108K
OA
1384
Operose Advisors
Wisconsin
$107K
BIAS
1385
Beacon Investment Advisory Services
New Jersey
$106K
OCWP
1386
Owl Creek Wealth Partners
Colorado
$106K
1CP
1387
1015 Capital Partners
Pennsylvania
$102K
WSFG
1388
Wall Street Financial Group
Illinois
$101K
BHWM
1389
Bay Harbor Wealth Management
Maryland
$100K
WTA
1390
Washington Trust Advisors
Massachusetts
$94.6K
QC
1391
Quent Capital
New York
$94.3K
B
1392
Bayban
Minnesota
$94.2K
DJSG
1393
D.J. St. Germain
Massachusetts
$93.2K
CFG
1394
Clayton Financial Group
Missouri
$90.9K
AWM
1395
Abound Wealth Management
Tennessee
$86.2K
TWD
1396
True Wealth Design
Ohio
$85K
WIM
1397
Westside Investment Management
California
$83.9K
JWA
1398
JFS Wealth Advisors
Pennsylvania
$83.6K
QL
1399
Quarry LP
New York
$83.1K
Parallax Volatility Advisers
1400
Parallax Volatility Advisers
California
$82.7K