PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 148 filers reported holding PROTHENA CORP PLC in Q3 2016. The put-call ratio across all filers is 4.25 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2017 | $852,000 | +184.0% | 13,150 | +163.0% | 0.00% | +100.0% |
| Q3 2016 | $300,000 | +33.9% | 5,000 | -21.9% | 0.00% | 0.0% |
| Q2 2016 | $224,000 | -52.1% | 6,400 | -7.0% | 0.00% | 0.0% |
| Q4 2015 | $468,000 | -78.1% | 6,880 | -85.4% | 0.00% | -81.8% |
| Q3 2015 | $2,135,000 | +21.0% | 47,100 | +40.6% | 0.01% | 0.0% |
| Q2 2015 | $1,765,000 | – | 33,500 | – | 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% |