PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 147 filers reported holding PROTHENA CORP PLC in Q3 2015. The put-call ratio across all filers is 0.61 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2016 | $1,157,000 | -26.2% | 33,104 | -13.1% | 0.39% | -9.5% |
| Q1 2016 | $1,568,000 | +27.2% | 38,104 | +110.5% | 0.43% | +57.7% |
| Q4 2015 | $1,233,000 | +99.8% | 18,104 | +33.1% | 0.27% | +121.0% |
| Q3 2015 | $617,000 | -50.4% | 13,600 | -42.4% | 0.12% | -61.0% |
| Q2 2015 | $1,243,000 | -25.3% | 23,600 | -45.9% | 0.32% | -28.7% |
| Q1 2015 | $1,663,000 | +83.8% | 43,600 | 0.0% | 0.45% | +189.6% |
| Q4 2014 | $905,000 | +83.9% | 43,600 | +96.4% | 0.15% | +51.0% |
| Q3 2014 | $492,000 | +55.7% | 22,200 | +58.6% | 0.10% | +67.2% |
| Q2 2014 | $316,000 | – | 14,000 | – | 0.06% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $697,952,870 | 21.24% |
| Prosight Management, LP | 330,000 | $19,882,500 | 10.84% |
| First Light Asset Management, LLC | 1,535,599 | $92,519,840 | 8.59% |
| Palo Alto Investors LP | 1,658,577 | $99,929,264 | 8.52% |
| Finepoint Capital LP | 322,900 | $19,455 | 6.29% |
| Birchview Capital, LP | 127,195 | $7,663 | 5.41% |
| Avidity Partners Management LP | 2,953,000 | $177,918,250 | 3.85% |
| DCF Advisers, LLC | 74,100 | $4,464,525 | 3.02% |
| PFM Health Sciences, LP | 875,464 | $52,746,706 | 1.89% |
| SECTORAL ASSET MANAGEMENT INC | 115,200 | $6,940,800 | 1.34% |