ATRICURE INC's ticker is ATRC and the CUSIP is 04963C209. A total of 192 filers reported holding ATRICURE INC in Q1 2021. The put-call ratio across all filers is 0.09 and the average weighting 0.1%.
Quarter-by-quarter ownership
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Tamarack Advisers, LP | 600,000 | $18,360,000 | 7.49% |
| DAFNA Capital Management LLC | 318,729 | $9,753,000 | 4.85% |
| First Light Asset Management, LLC | 965,797 | $29,553,000 | 4.71% |
| KOPP INVESTMENT ADVISORS LLC | 142,882 | $4,372,000 | 4.26% |
| Hudson Executive Capital LP | 5,317,956 | $162,728,000 | 4.13% |
| QUANTUM CAPITAL MANAGEMENT | 126,190 | $3,861,000 | 2.24% |
| PERKINS CAPITAL MANAGEMENT INC | 75,750 | $2,318,000 | 1.80% |
| AlphaOne Investment Services, LLC | 133,286 | $4,079,000 | 1.69% |
| OBERWEIS ASSET MANAGEMENT INC/ | 231,120 | $7,072,000 | 1.58% |
| SECTORAL ASSET MANAGEMENT INC | 355,728 | $10,885,000 | 1.48% |