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Boston Scientific

1,649 hedge funds and large institutions have $84.2B invested in Boston Scientific in 2026 Q1 according to their latest regulatory filings, with 187 funds opening new positions, 666 increasing their positions, 629 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:

32% less first-time investments, than exits

New positions opened: 187 | 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
1,649
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
ET
301
Entropy Technologies
New York
$17.8M
VMPIC
302
Varma Mutual Pension Insurance Co
Finland
$17.6M
CIS
303
Capital International Sarl
California
$17.5M
VLKIM
304
Van Lanschot Kempen Investment Management
Netherlands
$17.5M
RG
305
Renaissance Group
Kentucky
$17.4M
AB
306
Amalgamated Bank
New York
$17.3M
ZIG
307
Zurich Insurance Group
Switzerland
$17.1M
UIM
308
USS Investment Management
United Kingdom
$16.9M
CC
309
Chicago Capital
Illinois
$16.9M
WP
310
Waycross Partners
Kentucky
$16.8M
MML Investors Services
311
MML Investors Services
Massachusetts
$16.7M
OSAM
312
O'Shaughnessy Asset Management
Connecticut
$16.7M
BMSSC
313
B. Metzler seel. Sohn & Co
Germany
$16.6M
MIF
314
Mediolanum International Funds
Ireland
$16.5M
SCM
315
Sirios Capital Management
Massachusetts
$16.2M
GI
316
Gradient Investments
Minnesota
$16.1M
ZIM
317
Zacks Investment Management
Illinois
$16.1M
AAM
318
Aureus Asset Management
Massachusetts
$16M
GIM
319
Generate Investment Management
New Zealand
$16M
Nisa Investment Advisors
320
Nisa Investment Advisors
Missouri
$15.8M
BCM
321
Brookstone Capital Management
Illinois
$15.7M
ProShare Advisors
322
ProShare Advisors
Maryland
$15.7M
URS
323
Utah Retirement Systems
Utah
$15.1M
CA
324
Cornerstone Advisors
North Carolina
$15M
Mirae Asset Global ETFs Holdings
325
Mirae Asset Global ETFs Holdings
Hong Kong
$15M