PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 140 filers reported holding PROTHENA CORP PLC in Q4 2020. The put-call ratio across all filers is 0.56 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $3,136,250 | +78.4% | 65,000 | -7.1% | 0.01% | -45.5% |
| Q1 2021 | $1,758,000 | -21.8% | 70,000 | -68.9% | 0.02% | -33.3% |
| Q3 2020 | $2,248,000 | +4.1% | 225,000 | +8.9% | 0.03% | -13.2% |
| Q2 2020 | $2,160,000 | +12.1% | 206,555 | +14.8% | 0.04% | -20.8% |
| Q1 2020 | $1,926,000 | +712.7% | 180,000 | +1100.0% | 0.05% | +860.0% |
| Q4 2019 | $237,000 | -87.4% | 15,000 | -70.0% | 0.01% | -87.5% |
| Q4 2017 | $1,875,000 | +44.8% | 50,000 | +150.0% | 0.04% | +25.0% |
| Q3 2017 | $1,295,000 | -52.1% | 20,000 | -60.0% | 0.03% | -40.7% |
| Q2 2017 | $2,706,000 | – | 50,000 | – | 0.05% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $558,941,510 | 18.85% |
| Finepoint Capital LP | 349,300 | $16,853,725 | 8.39% |
| Palo Alto Investors LP | 1,657,458 | $79,972,349 | 7.57% |
| Birchview Capital, LP | 169,574 | $8,181,946 | 6.96% |
| First Light Asset Management, LLC | 1,494,039 | $72,087,382 | 6.85% |
| DCF Advisers, LLC | 82,950 | $4,002,338 | 2.18% |
| Prosight Management, LP | 126,202 | $6,089,247 | 1.93% |
| PFM Health Sciences, LP | 836,571 | $40,364,551 | 1.90% |
| SECTORAL ASSET MANAGEMENT INC | 172,407 | $8,318,638 | 1.62% |
| Boxer Capital, LLC | 625,000 | $30,156,250 | 1.60% |