AtriCure
ATRC
251 hedge funds and large institutions have $1.47B invested in AtriCure in 2026 Q2 according to their latest regulatory filings, with 52 funds opening new positions, 102 increasing their positions, 62 reducing their positions, and 23 closing their positions.
126% more first-time investments, than exits
New positions opened: 52 | Existing positions closed: 23
65% more repeat investments, than reductions
Existing positions increased: 102 | Existing positions reduced: 62
12% more funds holding
Funds holding: 224 → 251 (+27)
2.99% more ownership
Funds ownership: 100.42% → 103.41% (+3%)
0% more capital invested
Capital invested by funds: $1.46B → $1.47B (+$4.87M)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
94% less call options, than puts
Call options by funds: $341K | Put options by funds: $5.92M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$28.7M |
| 2 |
Point72 Asset Management
Stamford,
Connecticut
|
+$17M |
| 3 |
BlackRock
New York
|
+$12.2M |
| 4 |
Vanguard Portfolio Management
Malvern,
Pennsylvania
|
+$11.9M |
| 5 |
AQR Capital Management
Greenwich,
Connecticut
|
+$10.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
VOYA Investment Management
Atlanta,
Georgia
|
-$19.5M |
| 2 |
AllianceBernstein
Nashville,
Tennessee
|
-$13.8M |
| 3 |
UBS AM
Chicago,
Illinois
|
-$11.9M |
| 4 |
DSCM
Divisadero Street Capital Management
Miami,
Florida
|
-$10.1M |
| 5 |
Morgan Stanley
New York
|
-$7.35M |
ATRC Hedge Fund Activity: Q2 2026 in Review
251 of the 8,349 institutional investors tracked by Wall St. Rank reported a position in AtriCure (ATRC) for Q2 2026, worth a combined $1.47B — up 0.33% from $1.46B a quarter earlier.
Buyers outnumbered sellers: 52 funds opened new ATRC positions and 23 closed out — a net gain of 29 holders — while 102 added to existing stakes and 62 trimmed.
The largest buyer was Arrowstreet Capital, adding an estimated $28.7M. The largest seller was VOYA Investment Management, cutting an estimated $19.5M.
- 251 institutional investors held AtriCure (ATRC) as of Q2 2026, up from 224 in Q1 2026.
- Funds reported $1.47B of AtriCure stock for Q2 2026, up 0.33% quarter-over-quarter.
- 52 funds opened new AtriCure positions in Q2 2026 and 23 closed out, a net change of +29 holders.
- The largest AtriCure buyer in Q2 2026 was Arrowstreet Capital, an estimated $28.7M added.
- The largest AtriCure seller in Q2 2026 was VOYA Investment Management, an estimated $19.5M sold.
Based on aggregated 13F filings for Q2 2026.