PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 196 filers reported holding PROTHENA CORP PLC in Q4 2021. The put-call ratio across all filers is 0.55 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $1,793,763 | -100.0% | 29,772 | -78.3% | 0.01% | -64.7% |
| Q2 2022 | $3,733,016,000 | -15.2% | 137,496 | +14.2% | 0.03% | -5.6% |
| Q1 2022 | $4,402,772,000 | +71.2% | 120,393 | +131.2% | 0.04% | +89.5% |
| Q4 2021 | $2,571,912,000 | +698789.1% | 52,063 | +10.8% | 0.02% | +533.3% |
| Q3 2019 | $368,000 | -23.5% | 47,000 | +3.3% | 0.00% | -25.0% |
| Q2 2019 | $481,000 | +45.8% | 45,500 | +417.0% | 0.00% | +100.0% |
| Q4 2017 | $330,000 | -1.2% | 8,800 | +29.4% | 0.00% | -33.3% |
| Q4 2016 | $334,000 | +4.4% | 6,800 | -55.8% | 0.00% | -25.0% |
| Q4 2014 | $320,000 | -46.0% | 15,400 | -41.4% | 0.00% | -33.3% |
| Q2 2014 | $593,000 | – | 26,300 | – | 0.01% | – |
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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% |