PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 151 filers reported holding PROTHENA CORP PLC in Q1 2017. The put-call ratio across all filers is 2.05 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2017 | $253,000 | -42.1% | 6,740 | 0.0% | 0.01% | -46.7% |
| Q3 2017 | $437,000 | +19.7% | 6,740 | 0.0% | 0.02% | +36.4% |
| Q2 2017 | $365,000 | -7.1% | 6,740 | -4.3% | 0.01% | 0.0% |
| Q1 2017 | $393,000 | +13.3% | 7,040 | -0.1% | 0.01% | +10.0% |
| Q4 2016 | $347,000 | -19.1% | 7,050 | -1.4% | 0.01% | -23.1% |
| Q3 2016 | $429,000 | +71.6% | 7,150 | 0.0% | 0.01% | +85.7% |
| Q2 2016 | $250,000 | -17.5% | 7,150 | -2.7% | 0.01% | -22.2% |
| Q1 2016 | $303,000 | -40.1% | 7,350 | -1.1% | 0.01% | -40.0% |
| Q4 2015 | $506,000 | -72.1% | 7,430 | -84.4% | 0.02% | -75.4% |
| Q1 2015 | $1,811,000 | +66.6% | 47,480 | -9.3% | 0.06% | +60.5% |
| Q4 2014 | $1,087,000 | +3193.9% | 52,350 | +3461.2% | 0.04% | +3700.0% |
| Q3 2014 | $33,000 | – | 1,470 | – | 0.00% | – |
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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% |