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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
CIP
576
Castlefield Investment Partners
$3.38M
Cambridge Investment Research Advisors
577
Cambridge Investment Research Advisors
Iowa
$3.38M
BIG
578
Brooklyn Investment Group
New York
$3.37M
TMAM
579
Tokio Marine Asset Management
Japan
$3.34M
FTWA
580
Fifth Third Wealth Advisors
Ohio
$3.33M
TFA
581
Transamerica Financial Advisors
Florida
$3.32M
TGIA
582
Torrey Growth & Income Advisors
California
$3.31M
GVAG
583
Great Valley Advisor Group
Delaware
$3.29M
LWMM
584
Legacy Wealth Management (Mississippi)
Mississippi
$3.27M
KA
585
Kintegral Advisory
New York
$3.25M
William Blair Investment Management
586
William Blair Investment Management
Illinois
$3.24M
Luther King Capital Management (LKCM)
587
Luther King Capital Management (LKCM)
Texas
$3.21M
TCM
588
Tandem Capital Management
New Jersey
$3.21M
CRCM
589
Crystal Rock Capital Management
Illinois
$3.18M
ECM
590
Everence Capital Management
Indiana
$3.17M
LNWTC
591
Laird Norton Wetherby Trust Company
Washington
$3.17M
HCMT
592
Highland Capital Management (Tennessee)
Tennessee
$3.14M
EI
593
Ecofi Investissements
France
$3.14M
HI
594
Horizon Investments
North Carolina
$3.11M
SNB
595
Security National Bank
Nebraska
$3.08M
MYA
596
Meiji Yasuda America
New York
$3.06M
RMC
597
Resources Management Corp
Connecticut
$3.06M
CAL
598
Capital Analysts LLC
Pennsylvania
$3.05M
CBA
599
Coastal Bridge Advisors
Connecticut
$3.05M
EF
600
Empirical Finance
Pennsylvania
$3.04M