ATRICURE INC (ATRC): Institutional Ownership
Hedge funds and institutional managers reporting a position in ATRC · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
16
13F filers
Aggregate Value
$65.4M
Across holders
Last Price
$30.18
2026-06-26
Sector
Health Care
GICS
Holder activity5 new6 added5 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 751K | $21.4M | 32.7% | 0.0% | Added | +$10.6M | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 455K | $13.0M | 19.8% | 0.0% | Added | +$4.7M | Q1 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 309K | $8.8M | 13.5% | 0.0% | Reduced | $-377K | Q1 2026 |
| First Eagle Investment Management, LLC CIK 0001325447 | Institutional Manager | 262K | $7.5M | 11.4% | 0.0% | Added | +$4.2M | Q1 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 150K | $4.3M | 6.5% | 0.0% | Added | +$1.1M | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 102K | $2.9M | 4.4% | 0.0% | New | — | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 89K | $2.5M | 3.9% | 0.0% | Added | +$1.8M | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 68K | $1.9M | 3.0% | 0.0% | Reduced | $-2.0M | Q1 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 34K | $956K | 1.5% | 0.0% | New | — | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 17K | $494K | 0.8% | 0.0% | New | — | Q1 2026 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 11K | $447K | 0.7% | 0.0% | New | — | Q4 2025 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 9K | $355K | 0.5% | 0.0% | New | — | Q4 2025 |
| CAXTON ASSOCIATES LLP CIK 0002051323 | Hedge Fund | 10K | $299K | 0.5% | 0.0% | Added | +$102K | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 10K | $286K | 0.4% | 0.0% | Reduced | $-210K | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 10K | $271K | 0.4% | 0.0% | Reduced | $-299K | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 41 | $1K | 0.0% | 0.0% | Reduced | $-8K | Q1 2026 |
Added
Hedge Fund
$21.4M· 32.7% of total· 0.0% port· 751K sh· +$10.6M QoQ· Q1 2026
Added
Hedge Fund
$13.0M· 19.8% of total· 0.0% port· 455K sh· +$4.7M QoQ· Q1 2026
Reduced
Hedge Fund
$8.8M· 13.5% of total· 0.0% port· 309K sh· $-377K QoQ· Q1 2026
Added
Institutional Manager
$7.5M· 11.4% of total· 0.0% port· 262K sh· +$4.2M QoQ· Q1 2026
Added
Hedge Fund
$4.3M· 6.5% of total· 0.0% port· 150K sh· +$1.1M QoQ· Q1 2026
New
Hedge Fund
$2.9M· 4.4% of total· 0.0% port· 102K sh· — QoQ· Q1 2026
Added
Hedge Fund
$2.5M· 3.9% of total· 0.0% port· 89K sh· +$1.8M QoQ· Q1 2026
Reduced
Hedge Fund
$1.9M· 3.0% of total· 0.0% port· 68K sh· $-2.0M QoQ· Q1 2026
New
Hedge Fund
$956K· 1.5% of total· 0.0% port· 34K sh· — QoQ· Q1 2026
New
Hedge Fund
$494K· 0.8% of total· 0.0% port· 17K sh· — QoQ· Q1 2026
New
Hedge Fund
$447K· 0.7% of total· 0.0% port· 11K sh· — QoQ· Q4 2025
New
Hedge Fund
$355K· 0.5% of total· 0.0% port· 9K sh· — QoQ· Q4 2025
Added
Hedge Fund
$299K· 0.5% of total· 0.0% port· 10K sh· +$102K QoQ· Q1 2026
Reduced
Hedge Fund
$286K· 0.4% of total· 0.0% port· 10K sh· $-210K QoQ· Q1 2026
Reduced
Hedge Fund
$271K· 0.4% of total· 0.0% port· 10K sh· $-299K QoQ· Q1 2026
Reduced
Hedge Fund
$1K· 0.0% of total· 0.0% port· 41 sh· $-8K QoQ· Q1 2026