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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
NSIM
1351
North Star Investment Management
Illinois
$163K
SAM
1352
S.A. Mason
Michigan
$162K
TCOT
1353
Trust Company of Toledo
Ohio
$162K
CFO
1354
CVA Family Office
Colorado
$154K
HIIFS
1355
Harel Insurance Investments & Financial Services
Israel
$153K
GBT
1356
Grove Bank & Trust
Florida
$153K
SWM
1357
SHP Wealth Management
Massachusetts
$150K
LI
1358
LRI Investments
Florida
$148K
GKIM
1359
GW&K Investment Management
Massachusetts
$146K
MSWM
1360
Mowery & Schoenfeld Wealth Management
Illinois
$146K
FAMI
1361
Fideuram Asset Management (Ireland)
$140K
AIA
1362
Aventus Investment Advisors
Florida
$138K
CA
1363
CoreCap Advisors
Michigan
$135K
BTI
1364
Blue Trust Inc
Georgia
$135K
SA
1365
Strategic Advocates
Utah
$130K
HC
1366
Hoese & Co
Minnesota
$126K
TIAA Trust, National Association
1367
TIAA Trust, National Association
North Carolina
$124K
MB
1368
MidFirst Bank
Oklahoma
$122K
WA
1369
WPG Advisers
Maryland
$120K
SS
1370
Sunbelt Securities
Texas
$119K
HNB
1371
Hilltop National Bank
Wyoming
$119K
CAC
1372
Core Alternative Capital
Georgia
$118K
MMG
1373
Monetary Management Group
Missouri
$117K
SGFG
1374
Silver Grove Financial Group
New York
$115K
MHR
1375
Matthew Hamilton Rosenberg
$113K