PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 165 filers reported holding PROTHENA CORP PLC in Q2 2022. The put-call ratio across all filers is 0.24 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $1,406 | -99.8% | 29,008 | +23.7% | 0.02% | +29.4% |
| Q2 2022 | $637,000 | -67.2% | 23,459 | -14.0% | 0.02% | -46.9% |
| Q3 2021 | $1,943,000 | -5.6% | 27,280 | -31.9% | 0.03% | -17.9% |
| Q2 2021 | $2,059,000 | +1310.3% | 40,059 | +173.4% | 0.04% | +550.0% |
| Q3 2020 | $146,000 | -37.1% | 14,653 | -32.5% | 0.01% | -71.4% |
| Q1 2020 | $232,000 | +23.4% | 21,723 | +83.3% | 0.02% | +162.5% |
| Q4 2019 | $188,000 | -49.1% | 11,852 | -74.8% | 0.01% | -38.5% |
| Q3 2019 | $369,000 | -26.2% | 47,045 | -0.5% | 0.01% | -7.1% |
| Q2 2019 | $500,000 | +35.1% | 47,293 | +55.2% | 0.01% | -6.7% |
| Q1 2019 | $370,000 | +106.7% | 30,473 | +75.5% | 0.02% | +275.0% |
| Q4 2018 | $179,000 | +26.1% | 17,360 | +59.5% | 0.00% | 0.0% |
| Q3 2018 | $142,000 | -48.2% | 10,885 | +45.9% | 0.00% | -55.6% |
| Q1 2018 | $274,000 | +28.0% | 7,463 | +126.4% | 0.01% | +80.0% |
| Q3 2017 | $214,000 | -89.9% | 3,297 | -91.3% | 0.01% | -92.3% |
| Q1 2017 | $2,120,000 | +734.6% | 38,008 | +578.6% | 0.06% | +622.2% |
| Q3 2015 | $254,000 | -60.3% | 5,601 | -53.9% | 0.01% | -52.6% |
| Q2 2015 | $640,000 | -7.1% | 12,142 | -60.3% | 0.02% | -26.9% |
| Q2 2014 | $689,000 | – | 30,549 | – | 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% |