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 | $1,054,359 | -29.3% | 21,852 | 0.0% | 0.01% | -27.3% |
| Q2 2023 | $1,492,055 | +25.8% | 21,852 | +11.7% | 0.01% | +10.0% |
| Q3 2022 | $1,185,983 | +65.8% | 19,561 | 0.0% | 0.01% | +100.0% |
| Q1 2022 | $715,346 | +14.8% | 19,561 | +55.1% | 0.01% | 0.0% |
| Q4 2021 | $622,934 | -30.6% | 12,610 | 0.0% | 0.01% | -37.5% |
| Q3 2021 | $898,210 | +183.6% | 12,610 | 0.0% | 0.01% | +166.7% |
| Q1 2021 | $316,763 | +73.0% | 12,610 | -31.2% | 0.00% | +50.0% |
| Q3 2020 | $183,057 | -4.5% | 18,324 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $191,669 | -33.9% | 18,324 | 0.0% | 0.00% | -33.3% |
| Q4 2019 | $290,069 | – | 18,324 | – | 0.00% | – |
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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% |