PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 145 filers reported holding PROTHENA CORP PLC in Q1 2016. The put-call ratio across all filers is 1.24 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2018 | $5,226,000 | -22.7% | 142,351 | -21.0% | 0.29% | -9.9% |
| Q4 2017 | $6,758,000 | -63.7% | 180,261 | -37.3% | 0.32% | -57.5% |
| Q3 2017 | $18,631,000 | -15.1% | 287,656 | -29.0% | 0.76% | +8.1% |
| Q2 2017 | $21,939,000 | -6.4% | 405,376 | -3.5% | 0.70% | -11.1% |
| Q1 2017 | $23,430,000 | -1.0% | 419,974 | -12.7% | 0.79% | +2.6% |
| Q4 2016 | $23,662,000 | +17.6% | 481,027 | +43.4% | 0.77% | +46.9% |
| Q3 2016 | $20,117,000 | +58.0% | 335,447 | -7.9% | 0.52% | +59.6% |
| Q2 2016 | $12,734,000 | -58.4% | 364,250 | -51.0% | 0.33% | -16.8% |
| Q1 2016 | $30,588,000 | +19.2% | 743,144 | +97.3% | 0.39% | -36.1% |
| Q4 2015 | $25,660,000 | +49.6% | 376,746 | -0.4% | 0.62% | +50.4% |
| Q3 2015 | $17,147,000 | +23.7% | 378,185 | +43.7% | 0.41% | +39.1% |
| Q2 2015 | $13,866,000 | +6090.2% | 263,266 | +2505.8% | 0.29% | +4800.0% |
| Q3 2014 | $224,000 | -1.8% | 10,103 | 0.0% | 0.01% | +20.0% |
| Q2 2014 | $228,000 | -38.0% | 10,103 | +5.2% | 0.01% | -44.4% |
| Q1 2014 | $368,000 | – | 9,601 | – | 0.01% | – |
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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% |