PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 196 filers reported holding PROTHENA CORP PLC in Q4 2021. The put-call ratio across all filers is 0.55 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $3,045,395 | +88.7% | 63,117 | +167.1% | 0.12% | +90.2% |
| Q2 2023 | $1,613,525 | +1.0% | 23,631 | -28.3% | 0.06% | -7.6% |
| Q1 2023 | $1,598,104 | -17.1% | 32,971 | -15.5% | 0.07% | -45.5% |
| Q4 2021 | $1,927,000 | -2.7% | 39,000 | +40.3% | 0.12% | -15.4% |
| Q3 2021 | $1,980,000 | +1228.9% | 27,800 | +124.2% | 0.14% | +472.0% |
| Q4 2020 | $149,000 | – | 12,400 | – | 0.02% | – |
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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% |