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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
PAS
676
Parsonex Advisory Services
Colorado
$2.04M
AG
677
AlTi Global
New York
$2.04M
MYLI
678
Meiji Yasuda Life Insurance
Japan
$2.01M
SAI
679
Savvy Advisors Inc
New York
$2.01M
TCIIS
680
TIAA-CREF Individual & Institutional Services
New York
$2M
HFS
681
Hantz Financial Services
Michigan
$1.97M
CIA
682
Concurrent Investment Advisors
Florida
$1.97M
GCP
683
GSA Capital Partners
United Kingdom
$1.96M
CFO
684
Callan Family Office
Pennsylvania
$1.96M
BPAMU
685
BTG Pactual Asset Management US
New York
$1.95M
STA
686
Summit Trail Advisors
New York
$1.94M
BFO
687
Boston Family Office
Massachusetts
$1.94M
BC
688
Bridgefront Capital
Texas
$1.92M
AHC
689
Adell Harriman & Carpenter
Texas
$1.91M
CK
690
Cohen Klingenstein
New York
$1.91M
IWC
691
Integrated Wealth Concepts
Massachusetts
$1.91M
CC
692
Courier Capital
New York
$1.9M
TS
693
Triglav Skladi
Slovenia
$1.85M
GIM
694
Generali Investments Management
Slovenia
$1.85M
VI
695
Vestcor Inc
New Brunswick, Canada
$1.84M
PMAM
696
Picton Mahoney Asset Management
Ontario, Canada
$1.81M
CCM
697
Conway Capital Management
California
$1.81M
OF
698
Outfitter Financial
Maine
$1.81M
BP
699
Ballentine Partners
Massachusetts
$1.8M
DFCM
700
Dark Forest Capital Management
Puerto Rico
$1.8M