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AtriCure

222 hedge funds and large institutions have $1.46B invested in AtriCure in 2026 Q1 according to their latest regulatory filings, with 35 funds opening new positions, 82 increasing their positions, 66 reducing their positions, and 41 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:

more ownership

Funds ownership:

less funds holding

Funds holding:

15% less first-time investments, than exits

New positions opened: 35 | Existing positions closed: 41

24% less capital invested

Capital invested by funds: $1.93B → $1.46B (-$465M)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

Holders
222
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$280K
Puts
$143K
Net Calls
Net Calls Change

Top Buyers

1 +$39.6M
2 +$26.7M
3 +$18.9M
4
Morgan Stanley
Morgan Stanley
New York
+$12.7M
5
Two Sigma Investments
Two Sigma Investments
New York
+$12.6M
Name Holding Trade Value Shares
Change
Change in
Stake
UBS AM
26
UBS AM
Illinois
$15.8M
Qube Research & Technologies (QRT)
27
Qube Research & Technologies (QRT)
United Kingdom
$13M
Northern Trust
28
Northern Trust
Illinois
$12.8M
Charles Schwab
29
Charles Schwab
California
$12.3M
GPGA
30
Grandeur Peak Global Advisors
Utah
$10.9M
WCM Investment Management
31
WCM Investment Management
California
$10.2M
OCM
32
Osterweis Capital Management
California
$9.98M
Connor, Clark & Lunn Investment Management (CC&L)
33
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$9.85M
VFT
34
Vanguard Fiduciary Trust
Pennsylvania
$9.78M
Fidelity Investments
35
Fidelity Investments
Massachusetts
$9.61M
N
36
Nuveen
North Carolina
$9.61M
Renaissance Technologies
37
Renaissance Technologies
New York
$8.81M
Arrowstreet Capital
38
Arrowstreet Capital
Massachusetts
$7.92M
First Eagle Investment Management
39
First Eagle Investment Management
New York
$7.48M
SEI Investments
40
SEI Investments
Pennsylvania
$7.44M
WA
41
Wasatch Advisors
Utah
$7.24M
PAM
42
Panagora Asset Management
Massachusetts
$6.49M
Amundi
43
Amundi
France
$6.45M
Universal-Beteiligungs- und Servicegesellschaft
44
Universal-Beteiligungs- und Servicegesellschaft
Germany
$6.15M
Raymond James Financial
45
Raymond James Financial
Florida
$6.13M
NC
46
Nicholas Company
Wisconsin
$5.84M
First Trust Advisors
47
First Trust Advisors
Illinois
$5.4M
AQR Capital Management
48
AQR Capital Management
Connecticut
$5.32M
ACM
49
Advisors Capital Management
New Jersey
$5.2M
Millennium Management
50
Millennium Management
New York
$5.13M