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Boston Scientific

1,662 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, 673 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
1,662
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
GC
376
Guggenheim Capital
Illinois
$11.2M
WC
377
Westwind Capital
New Mexico
$11.1M
FISPB
378
Fideuram - Intesa Sanpaolo Private Banking
$11.1M
KFC
379
Klingenstein Fields & Co
New York
$11M
SC
380
SouthState Corp
Florida
$11M
AF
381
Avanza Fonder
Sweden
$10.9M
Baird Financial Group
382
Baird Financial Group
Wisconsin
$10.8M
IGAM
383
iA Global Asset Management
Quebec, Canada
$10.8M
BHCM
384
Brevan Howard Capital Management
Jersey
$10.8M
CCM
385
Cadian Capital Management
New York
$10.7M
AAF
386
Andra AP-fonden
Sweden
$10.7M
OPERF
387
Oregon Public Employees Retirement Fund
Oregon
$10.7M
SCI
388
S&CO Inc
Massachusetts
$10.7M
EPIM
389
Evelyn Partners Investment Management
$10.6M
HJGA
390
Hardman Johnston Global Advisors
Connecticut
$10.4M
QCM
391
QRG Capital Management
Illinois
$10.3M
WA
392
Waverly Advisors
Alabama
$10.2M
OCM
393
One Capital Management
California
$10.1M
Blackstone Inc
394
Blackstone Inc
New York
$10.1M
LCS
395
Levin Capital Strategies
New York
$9.97M
MOACM
396
Mutual of America Capital Management
New York
$9.93M
EAM
397
EdenTree Asset Management
United Kingdom
$9.82M
PFPG
398
Pinnacle Financial Partners (Georgia)
Georgia
$9.81M
GI
399
GAMCO Investors
Connecticut
$9.74M
Commonwealth Equity Services
400
Commonwealth Equity Services
Massachusetts
$9.68M