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 | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,160,895 | -29.3% | 24,060 | 0.0% | 0.00% | -20.0% |
| Q2 2023 | $1,642,817 | +40.9% | 24,060 | 0.0% | 0.01% | +25.0% |
| Q1 2023 | $1,166,188 | -19.6% | 24,060 | 0.0% | 0.00% | -20.0% |
| Q4 2022 | $1,449,615 | -4.4% | 24,060 | -3.8% | 0.01% | 0.0% |
| Q3 2022 | $1,516,000 | +123.3% | 25,000 | 0.0% | 0.01% | +150.0% |
| Q2 2022 | $679,000 | -25.7% | 25,000 | 0.0% | 0.00% | 0.0% |
| Q1 2022 | $914,000 | -26.0% | 25,000 | 0.0% | 0.00% | 0.0% |
| Q4 2021 | $1,235,000 | -30.7% | 25,000 | 0.0% | 0.00% | -33.3% |
| Q3 2021 | $1,781,000 | +38.6% | 25,000 | 0.0% | 0.00% | +50.0% |
| Q2 2021 | $1,285,000 | +104.6% | 25,000 | 0.0% | 0.00% | +100.0% |
| Q1 2021 | $628,000 | +109.3% | 25,000 | 0.0% | 0.00% | 0.0% |
| Q4 2020 | $300,000 | – | 25,000 | – | 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% |