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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
Commonwealth Equity Services
401
Commonwealth Equity Services
Massachusetts
$9.68M
AC
402
Allstate Corporation
Illinois
$9.66M
CI
403
Capital International
California
$9.64M
SLI
404
Sumitomo Life Insurance
Japan
$9.56M
LOAME
405
Lombard Odier Asset Management (Europe)
United Kingdom
$9.5M
Macquarie Group
406
Macquarie Group
Australia
$9.49M
Diamond Hill Capital Management
407
Diamond Hill Capital Management
Ohio
$9.42M
OAM
408
OP Asset Management
$9.42M
AAP
409
Ardsley Advisory Partners
Connecticut
$9.41M
MCM
410
Mill Capital Management
North Carolina
$9.4M
IMRF
411
Illinois Municipal Retirement Fund
Illinois
$9.36M
OIMU
412
Osmosis Investment Management UK
United Kingdom
$9.33M
MFG
413
Merit Financial Group
Georgia
$9.27M
SOADOR
414
State of Alaska Department of Revenue
Alaska
$9.26M
CLGM
415
Capitolis Liquid Global Markets
New York
$9.25M
NPPM
416
North Point Portfolio Managers
Ohio
$9.24M
VAS
417
Vestmark Advisory Solutions
Massachusetts
$9.2M
AssetMark Inc
418
AssetMark Inc
California
$9.14M
MGP
419
M&G plc
United Kingdom
$9.02M
HP
420
HealthInvest Partners
Sweden
$8.84M
OQS
421
Occudo Quantitative Strategies
Florida
$8.82M
RCMU
422
Rokos Capital Management (UK)
United Kingdom
$8.79M
Janney Montgomery Scott
423
Janney Montgomery Scott
Pennsylvania
$8.76M
CII
424
Capital International Inc
California
$8.59M
TI
425
Think Investments
California
$8.53M