PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 141 filers reported holding PROTHENA CORP PLC in Q4 2019. The put-call ratio across all filers is 0.03 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2022 | $121 | +124.1% | 2 | 0.0% | 0.00% | – |
| Q2 2022 | $54 | -26.0% | 2 | 0.0% | 0.00% | – |
| Q1 2022 | $73 | -26.3% | 2 | 0.0% | 0.00% | – |
| Q4 2021 | $99 | -30.3% | 2 | 0.0% | 0.00% | – |
| Q3 2021 | $142 | +37.9% | 2 | 0.0% | 0.00% | – |
| Q2 2021 | $103 | +106.0% | 2 | 0.0% | 0.00% | – |
| Q1 2021 | $50 | +108.3% | 2 | 0.0% | 0.00% | – |
| Q4 2020 | $24 | +20.0% | 2 | 0.0% | 0.00% | – |
| Q3 2020 | $20 | -4.8% | 2 | 0.0% | 0.00% | – |
| Q2 2020 | $21 | 0.0% | 2 | 0.0% | 0.00% | – |
| Q1 2020 | $21 | -34.4% | 2 | 0.0% | 0.00% | – |
| Q4 2019 | $32 | +100.0% | 2 | 0.0% | 0.00% | – |
| Q3 2019 | $16 | -23.8% | 2 | 0.0% | 0.00% | – |
| Q2 2019 | $21 | -12.5% | 2 | 0.0% | 0.00% | – |
| Q1 2019 | $24 | +14.3% | 2 | 0.0% | 0.00% | – |
| Q4 2018 | $21 | – | 2 | – | 0.00% | – |
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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% |