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 | $1,471,625 | +139.7% | 30,500 | +81.5% | 0.01% | +200.0% |
| Q1 2022 | $614,000 | -76.5% | 16,800 | -68.2% | 0.00% | -66.7% |
| Q4 2021 | $2,608,000 | +1294.7% | 52,800 | +182.4% | 0.01% | +500.0% |
| Q3 2020 | $187,000 | -76.0% | 18,700 | -74.9% | 0.00% | -83.3% |
| Q2 2020 | $779,000 | -2.3% | 74,500 | 0.0% | 0.01% | -33.3% |
| Q1 2020 | $797,000 | -54.6% | 74,500 | -32.8% | 0.01% | +12.5% |
| Q4 2019 | $1,754,000 | – | 110,800 | – | 0.01% | – |
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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% |