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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
PI
301
PineBridge Investments
New York
$18M
ET
302
Entropy Technologies
New York
$17.8M
VMPIC
303
Varma Mutual Pension Insurance Co
Finland
$17.6M
CIS
304
Capital International Sarl
California
$17.5M
VLKIM
305
Van Lanschot Kempen Investment Management
Netherlands
$17.5M
RG
306
Renaissance Group
Kentucky
$17.4M
AB
307
Amalgamated Bank
New York
$17.3M
ZIG
308
Zurich Insurance Group
Switzerland
$17.1M
UIM
309
USS Investment Management
United Kingdom
$16.9M
CC
310
Chicago Capital
Illinois
$16.9M
WP
311
Waycross Partners
Kentucky
$16.8M
MML Investors Services
312
MML Investors Services
Massachusetts
$16.7M
OSAM
313
O'Shaughnessy Asset Management
Connecticut
$16.7M
BMSSC
314
B. Metzler seel. Sohn & Co
Germany
$16.6M
MIF
315
Mediolanum International Funds
Ireland
$16.5M
SCM
316
Sirios Capital Management
Massachusetts
$16.2M
GI
317
Gradient Investments
Minnesota
$16.1M
ZIM
318
Zacks Investment Management
Illinois
$16.1M
AAM
319
Aureus Asset Management
Massachusetts
$16M
GIM
320
Generate Investment Management
New Zealand
$16M
Nisa Investment Advisors
321
Nisa Investment Advisors
Missouri
$15.8M
BCM
322
Brookstone Capital Management
Illinois
$15.7M
ProShare Advisors
323
ProShare Advisors
Maryland
$15.7M
URS
324
Utah Retirement Systems
Utah
$15.1M
CA
325
Cornerstone Advisors
North Carolina
$15M