PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 197 filers reported holding PROTHENA CORP PLC in Q2 2023. The put-call ratio across all filers is 1.55 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $255 | -8.3% | 3,741 | -34.8% | 0.10% | -5.7% |
| Q1 2023 | $278 | -100.0% | 5,738 | -62.5% | 0.10% | -71.9% |
| Q3 2022 | $927,000 | +137.1% | 15,290 | +6.0% | 0.37% | +173.0% |
| Q2 2022 | $391,000 | -6.7% | 14,419 | +25.7% | 0.14% | +21.2% |
| Q1 2022 | $419,000 | +37.8% | 11,474 | +85.9% | 0.11% | +15.3% |
| Q4 2021 | $304,000 | – | 6,172 | – | 0.10% | – |
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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% |