PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 143 filers reported holding PROTHENA CORP PLC in Q2 2016. The put-call ratio across all filers is 2.21 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2017 | $357,000 | -52.2% | 9,528 | -17.3% | 0.05% | -36.0% |
| Q3 2017 | $747,000 | +19.7% | 11,528 | 0.0% | 0.08% | +10.3% |
| Q2 2017 | $624,000 | -3.0% | 11,528 | 0.0% | 0.07% | -8.1% |
| Q1 2017 | $643,000 | +8.6% | 11,528 | -4.2% | 0.07% | -7.5% |
| Q4 2016 | $592,000 | -24.0% | 12,028 | -7.4% | 0.08% | -9.1% |
| Q3 2016 | $779,000 | +71.6% | 12,995 | 0.0% | 0.09% | +69.2% |
| Q2 2016 | $454,000 | -21.3% | 12,995 | -7.4% | 0.05% | -59.4% |
| Q1 2016 | $577,000 | -39.6% | 14,028 | 0.0% | 0.13% | -46.9% |
| Q4 2015 | $955,000 | +50.2% | 14,028 | 0.0% | 0.24% | +39.3% |
| Q3 2015 | $636,000 | -13.9% | 14,028 | 0.0% | 0.17% | -11.3% |
| Q2 2015 | $739,000 | – | 14,028 | – | 0.20% | – |
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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% |