PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 141 filers reported holding PROTHENA CORP PLC in Q3 2020. The put-call ratio across all filers is 1.19 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $1,785,000 | -37.7% | 178,688 | -34.7% | 0.32% | +16.2% |
| Q2 2020 | $2,864,000 | -36.8% | 273,823 | -35.4% | 0.28% | -56.4% |
| Q1 2020 | $4,535,000 | -32.4% | 423,823 | 0.0% | 0.64% | -20.6% |
| Q4 2019 | $6,709,000 | +101.9% | 423,823 | 0.0% | 0.80% | +40.9% |
| Q3 2019 | $3,323,000 | -2.9% | 423,823 | +30.9% | 0.57% | +22.9% |
| Q2 2019 | $3,423,000 | -12.9% | 323,823 | 0.0% | 0.46% | -36.0% |
| Q1 2019 | $3,928,000 | +701.6% | 323,823 | +580.2% | 0.72% | +546.4% |
| Q4 2018 | $490,000 | – | 47,610 | – | 0.11% | – |
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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% |