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AtriCure

221 hedge funds and large institutions have $1.62B invested in AtriCure in 2025 Q1 according to their latest regulatory filings, with 37 funds opening new positions, 77 increasing their positions, 65 reducing their positions, and 28 closing their positions.

New
Increased
Maintained
Reduced
Closed

626% more call options, than puts

Call options by funds: $1.05M | Put options by funds: $145K

32% more first-time investments, than exits

New positions opened: 37 | Existing positions closed: 28

18% more repeat investments, than reductions

Existing positions increased: 77 | Existing positions reduced: 65

14% more capital invested

Capital invested by funds: $1.42B → $1.62B (+$203M)

7.61% more ownership

Funds ownership: 95.39%103% (+7.6%)

4% more funds holding

Funds holding: 213221 (+8)

0% more funds holding in top 10

Funds holding in top 10: 22 (0)

Holders
221
Holders Change
+8
Holders Change %
+3.76%
% of All Funds
2.96%
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.03%
New
37
Increased
77
Reduced
65
Closed
28
Calls
$1.05M
Puts
$145K
Net Calls
+$907K
Net Calls Change
-$205K
Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$152M +$2.27M +61,166 +1%
BlackRock
2
BlackRock
New York
$136M -$3.23M -86,979 -2%
AllianceBernstein
3
AllianceBernstein
Tennessee
$119M -$5.89M -158,600 -4%
HRCM
4
Hood River Capital Management
Florida
$96.8M +$2.8M +75,476 +3%
Macquarie Group
5
Macquarie Group
Australia
$78.6M +$2.29M +61,604 +3%
UBS AM
6
UBS AM
Illinois
$70.9M +$51.4M +1,385,544 +171%
CIP
7
Champlain Investment Partners
Vermont
$69M -$14.5M -390,651 -15%
FLAM
8
First Light Asset Management
Minnesota
$42.4M -$24.3M -654,503 -33%
State Street
9
State Street
Massachusetts
$41.2M -$2.54M -68,525 -5%
Neuberger Berman Group
10
Neuberger Berman Group
New York
$38.4M +$9.16M +246,877 +26%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$37.7M +$598K +16,111 +1%
Marshall Wace
12
Marshall Wace
United Kingdom
$32.1M +$13.9M +374,927 +61%
Fidelity Investments
13
Fidelity Investments
Massachusetts
$32M +$425K +11,442 +1%
GKIM
14
GW&K Investment Management
Massachusetts
$31.7M -$705K -18,982 -2%
N
15
Nuveen
North Carolina
$30.7M -$3.22M -86,745 -8%
Goldman Sachs
16
Goldman Sachs
New York
$27.8M +$332K +8,956 +1%
BNP Paribas Asset Management
17
BNP Paribas Asset Management
France
$24.1M +$5.46M +147,000 +24%
Dimensional Fund Advisors
18
Dimensional Fund Advisors
Texas
$22.9M +$402K +10,832 +2%
Wellington Management Group
19
Wellington Management Group
Massachusetts
$22.6M +$1.77M +47,551 +7%
Two Sigma Investments
20
Two Sigma Investments
New York
$21.5M +$2.11M +56,929 +9%
Two Sigma Advisers
21
Two Sigma Advisers
New York
$21.2M +$702K +18,900 +3%
KCM
22
Kennedy Capital Management
Missouri
$20.4M -$4.47M -120,452 -16%
Millennium Management
23
Millennium Management
New York
$20.1M +$10.2M +275,487 +79%
Bank of America
24
Bank of America
North Carolina
$19.8M +$8.28M +223,044 +57%
Jennison Associates
25
Jennison Associates
New York
$19.1M +$22M +593,270 New

ATRC Hedge Fund Activity: Q1 2025 in Review

221 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in AtriCure (ATRC) for Q1 2025, worth a combined $1.62B — up 14% from $1.42B a quarter earlier.

Buyers outnumbered sellers: 37 funds opened new ATRC positions and 28 closed out — a net gain of 9 holders — while 77 added to existing stakes and 65 trimmed.

The largest buyer was UBS AM, adding an estimated $51.4M. The largest seller was First Light Asset Management, cutting an estimated $24.3M.

  • 221 institutional investors held AtriCure (ATRC) as of Q1 2025, up from 213 in Q4 2024.
  • Funds reported $1.62B of AtriCure stock for Q1 2025, up 14% quarter-over-quarter.
  • 37 funds opened new AtriCure positions in Q1 2025 and 28 closed out, a net change of +9 holders.
  • The largest AtriCure buyer in Q1 2025 was UBS AM, an estimated $51.4M added.
  • The largest AtriCure seller in Q1 2025 was First Light Asset Management, an estimated $24.3M sold.

Based on aggregated 13F filings for Q1 2025.