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 | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $21,587,000 | -39.0% | 1,797,458 | -49.3% | 0.19% | -57.5% |
| Q3 2020 | $35,409,000 | -4.5% | 3,544,475 | 0.0% | 0.44% | -14.8% |
| Q2 2020 | $37,075,000 | +19.4% | 3,544,475 | +22.1% | 0.52% | 0.0% |
| Q1 2020 | $31,054,000 | -32.4% | 2,902,239 | 0.0% | 0.52% | -20.4% |
| Q4 2019 | $45,942,000 | +93.9% | 2,902,239 | -4.0% | 0.66% | +45.8% |
| Q3 2019 | $23,693,000 | -26.9% | 3,022,117 | -1.4% | 0.45% | -10.4% |
| Q2 2019 | $32,400,000 | +9.7% | 3,065,278 | +25.9% | 0.50% | +9.8% |
| Q1 2019 | $29,540,000 | -59.2% | 2,435,278 | +28.9% | 0.46% | -48.7% |
| Q1 2014 | $72,368,000 | +127.0% | 1,889,000 | +57.2% | 0.89% | +90.2% |
| Q4 2013 | $31,877,000 | – | 1,202,000 | – | 0.47% | – |
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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% |