PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 189 filers reported holding PROTHENA CORP PLC in Q1 2023. The put-call ratio across all filers is 0.56 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $6,089,247 | -62.8% | 126,202 | -47.4% | 1.93% | -21.4% |
| Q2 2023 | $16,387,200 | -24.4% | 240,000 | -46.3% | 2.46% | -76.1% |
| Q1 2023 | $21,670,549 | +9.0% | 447,092 | +35.5% | 10.27% | -5.3% |
| Q4 2022 | $19,882,500 | +2.1% | 330,000 | +2.8% | 10.84% | +4.0% |
| Q3 2022 | $19,468,000 | +30.4% | 321,093 | -41.6% | 10.43% | -11.4% |
| Q2 2022 | $14,933,000 | -27.9% | 550,000 | -2.9% | 11.77% | -12.0% |
| Q1 2022 | $20,718,000 | -4.9% | 566,538 | +28.5% | 13.38% | +2.6% |
| Q4 2021 | $21,785,000 | -5.4% | 441,000 | +36.4% | 13.04% | +2.9% |
| Q3 2021 | $23,029,000 | +6.1% | 323,300 | -23.4% | 12.67% | -6.6% |
| Q2 2021 | $21,695,000 | +43.9% | 422,000 | -29.7% | 13.57% | +9.9% |
| Q1 2021 | $15,072,000 | +15.0% | 600,000 | -45.0% | 12.34% | +103.8% |
| Q4 2020 | $13,105,000 | +140.6% | 1,091,202 | +100.1% | 6.06% | +133.7% |
| Q3 2020 | $5,447,000 | – | 545,195 | – | 2.59% | – |
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% |