PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 193 filers reported holding PROTHENA CORP PLC in Q3 2021. The put-call ratio across all filers is 0.62 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $206,356 | -0.8% | 3,425 | 0.0% | 0.00% | 0.0% |
| Q3 2022 | $208,000 | -78.2% | 3,425 | -82.2% | 0.00% | -84.0% |
| Q4 2021 | $953,000 | -55.6% | 19,290 | -36.0% | 0.02% | -35.9% |
| Q3 2021 | $2,148,000 | +38.6% | 30,150 | 0.0% | 0.04% | +39.3% |
| Q2 2021 | $1,550,000 | +115.3% | 30,150 | +5.1% | 0.03% | +133.3% |
| Q1 2021 | $720,000 | +370.6% | 28,680 | +124.8% | 0.01% | +300.0% |
| Q4 2020 | $153,000 | – | 12,760 | – | 0.00% | – |
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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% |