PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 120 filers reported holding PROTHENA CORP PLC in Q4 2018. The put-call ratio across all filers is 2.81 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2019 | $6,981,000 | -31.4% | 2,008,644 | -27.2% | 0.62% | -3.0% |
| Q4 2018 | $10,172,000 | +35.2% | 2,757,947 | +33.1% | 0.64% | +34.9% |
| Q3 2018 | $7,522,000 | +183.5% | 2,072,455 | +115.2% | 0.48% | +257.1% |
| Q2 2018 | $2,653,000 | +6.8% | 963,130 | +289.7% | 0.13% | +7.3% |
| Q1 2018 | $2,484,000 | – | 247,128 | – | 0.12% | – |
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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% |