PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 129 filers reported holding PROTHENA CORP PLC in Q3 2019. The put-call ratio across all filers is 0.21 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $1,785,000 | -37.7% | 178,688 | -34.7% | 0.32% | +16.2% |
| Q2 2020 | $2,864,000 | -36.8% | 273,823 | -35.4% | 0.28% | -56.4% |
| Q1 2020 | $4,535,000 | -32.4% | 423,823 | 0.0% | 0.64% | -20.6% |
| Q4 2019 | $6,709,000 | +101.9% | 423,823 | 0.0% | 0.80% | +40.9% |
| Q3 2019 | $3,323,000 | -2.9% | 423,823 | +30.9% | 0.57% | +22.9% |
| Q2 2019 | $3,423,000 | -12.9% | 323,823 | 0.0% | 0.46% | -36.0% |
| Q1 2019 | $3,928,000 | +701.6% | 323,823 | +580.2% | 0.72% | +546.4% |
| Q4 2018 | $490,000 | – | 47,610 | – | 0.11% | – |
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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% |