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 | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $21,587,000 | -39.0% | 1,797,458 | -49.3% | 0.19% | -57.5% |
| Q3 2020 | $35,409,000 | -4.5% | 3,544,475 | 0.0% | 0.44% | -14.8% |
| Q2 2020 | $37,075,000 | +19.4% | 3,544,475 | +22.1% | 0.52% | 0.0% |
| Q1 2020 | $31,054,000 | -32.4% | 2,902,239 | 0.0% | 0.52% | -20.4% |
| Q4 2019 | $45,942,000 | +93.9% | 2,902,239 | -4.0% | 0.66% | +45.8% |
| Q3 2019 | $23,693,000 | -26.9% | 3,022,117 | -1.4% | 0.45% | -10.4% |
| Q2 2019 | $32,400,000 | +9.7% | 3,065,278 | +25.9% | 0.50% | +9.8% |
| Q1 2019 | $29,540,000 | -59.2% | 2,435,278 | +28.9% | 0.46% | -48.7% |
| Q1 2014 | $72,368,000 | +127.0% | 1,889,000 | +57.2% | 0.89% | +90.2% |
| Q4 2013 | $31,877,000 | – | 1,202,000 | – | 0.47% | – |
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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% |