PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 190 filers reported holding PROTHENA CORP PLC in Q3 2023. The put-call ratio across all filers is 1.91 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,510,225 | -40.9% | 31,300 | -16.3% | 0.14% | -41.3% |
| Q2 2023 | $2,553,672 | -18.9% | 37,400 | -42.5% | 0.24% | -13.0% |
| Q1 2023 | $3,150,550 | -32.5% | 65,000 | -16.1% | 0.27% | -31.6% |
| Q4 2022 | $4,669,375 | +1.1% | 77,500 | -17.1% | 0.40% | +27.8% |
| Q4 2021 | $4,619,000 | -30.6% | 93,500 | 0.0% | 0.31% | -39.9% |
| Q3 2021 | $6,660,000 | +150.1% | 93,500 | +80.5% | 0.51% | +142.5% |
| Q2 2021 | $2,663,000 | – | 51,800 | – | 0.21% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,284,280 | $557,443,000 | 17.76% |
| Prosight Management, LP | 441,000 | $21,785,000 | 13.04% |
| First Light Asset Management, LLC | 1,622,941 | $80,173,000 | 5.74% |
| Palo Alto Investors LP | 1,685,282 | $83,253,000 | 5.32% |
| Birchview Capital, LP | 40,247 | $1,988,000 | 1.28% |
| DCF Advisers, LLC | 60,000 | $2,964,000 | 1.20% |
| HighVista Strategies LLC | 28,078 | $1,387,000 | 1.10% |
| APOGEM CAPITAL LLC | 33,212 | $1,641,000 | 1.08% |
| Redmile Group, LLC | 765,675 | $37,824,000 | 0.86% |
| Rock Springs Capital Management LP | 647,730 | $31,998,000 | 0.74% |