PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 175 filers reported holding PROTHENA CORP PLC in Q1 2022. The put-call ratio across all filers is 0.32 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $354,734 | -29.3% | 7,352 | 0.0% | 0.29% | -22.0% |
| Q2 2023 | $501,995 | +40.9% | 7,352 | 0.0% | 0.38% | +35.6% |
| Q1 2023 | $356,351 | -21.4% | 7,352 | -2.3% | 0.28% | -18.7% |
| Q4 2022 | $453,502 | +538.7% | 7,527 | +540.6% | 0.34% | +460.7% |
| Q3 2022 | $71,000 | +121.9% | 1,175 | 0.0% | 0.06% | +134.6% |
| Q2 2022 | $32,000 | -25.6% | 1,175 | 0.0% | 0.03% | -10.3% |
| Q1 2022 | $43,000 | -18.9% | 1,175 | +9.3% | 0.03% | -14.7% |
| Q4 2021 | $53,000 | -58.6% | 1,075 | -40.1% | 0.03% | -63.8% |
| Q3 2021 | $128,000 | +18.5% | 1,796 | -14.6% | 0.09% | +19.0% |
| Q2 2021 | $108,000 | +66.2% | 2,104 | -18.1% | 0.08% | +51.9% |
| Q1 2021 | $65,000 | +97.0% | 2,569 | -6.8% | 0.05% | +85.7% |
| Q4 2020 | $33,000 | – | 2,755 | – | 0.03% | – |
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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% |