PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 157 filers reported holding PROTHENA CORP PLC in Q2 2021. The put-call ratio across all filers is 0.47 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $2,622,967 | -29.3% | 54,362 | 0.0% | 0.17% | -25.5% |
| Q2 2023 | $3,711,837 | +40.9% | 54,362 | 0.0% | 0.23% | +20.9% |
| Q1 2023 | $2,634,926 | -19.5% | 54,362 | 0.0% | 0.19% | -22.4% |
| Q4 2022 | $3,275,000 | -0.6% | 54,362 | 0.0% | 0.25% | -11.5% |
| Q3 2022 | $3,296,000 | +98.7% | 54,362 | +19.8% | 0.28% | +141.7% |
| Q2 2022 | $1,659,000 | 0.0% | 45,362 | 0.0% | 0.12% | +8.5% |
| Q1 2022 | $1,659,000 | -26.0% | 45,362 | 0.0% | 0.11% | -23.2% |
| Q4 2021 | $2,241,000 | -30.6% | 45,362 | 0.0% | 0.14% | -23.3% |
| Q3 2021 | $3,231,000 | +38.6% | 45,362 | 0.0% | 0.18% | +38.5% |
| Q2 2021 | $2,332,000 | +104.7% | 45,362 | 0.0% | 0.13% | +83.1% |
| Q1 2021 | $1,139,000 | +109.0% | 45,362 | 0.0% | 0.07% | +69.0% |
| Q4 2020 | $545,000 | -67.6% | 45,362 | -18.1% | 0.04% | -54.3% |
| Q3 2020 | $1,680,000 | +254.4% | 55,362 | +22.0% | 0.09% | +80.4% |
| Q2 2020 | $474,000 | -2.3% | 45,362 | 0.0% | 0.05% | -19.0% |
| Q1 2020 | $485,000 | -32.5% | 45,362 | 0.0% | 0.06% | -8.7% |
| Q4 2019 | $718,000 | – | 45,362 | – | 0.07% | – |
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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% |