PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 156 filers reported holding PROTHENA CORP PLC in Q3 2017. The put-call ratio across all filers is 2.30 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2017 | $660,000 | +143.5% | 10,200 | +104.0% | 0.00% | +33.3% |
| Q2 2017 | $271,000 | -0.7% | 5,000 | +2.0% | 0.00% | -25.0% |
| Q1 2017 | $273,000 | -33.1% | 4,900 | -27.9% | 0.00% | -42.9% |
| Q3 2016 | $408,000 | +65.2% | 6,800 | +13.3% | 0.01% | +40.0% |
| Q1 2016 | $247,000 | -27.6% | 6,000 | +20.0% | 0.01% | -44.4% |
| Q4 2015 | $341,000 | -49.8% | 5,000 | -61.2% | 0.01% | -66.7% |
| Q2 2015 | $679,000 | +38.0% | 12,900 | 0.0% | 0.03% | +50.0% |
| Q1 2015 | $492,000 | +83.6% | 12,900 | 0.0% | 0.02% | +125.0% |
| Q4 2014 | $268,000 | -20.5% | 12,900 | -15.1% | 0.01% | -20.0% |
| Q3 2014 | $337,000 | – | 15,200 | – | 0.01% | – |
Download | ||||||
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% |