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 | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,471,625 | +139.7% | 30,500 | +81.5% | 0.01% | +200.0% |
| Q1 2022 | $614,000 | -76.5% | 16,800 | -68.2% | 0.00% | -66.7% |
| Q4 2021 | $2,608,000 | +1294.7% | 52,800 | +182.4% | 0.01% | +500.0% |
| Q3 2020 | $187,000 | -76.0% | 18,700 | -74.9% | 0.00% | -83.3% |
| Q2 2020 | $779,000 | -2.3% | 74,500 | 0.0% | 0.01% | -33.3% |
| Q1 2020 | $797,000 | -54.6% | 74,500 | -32.8% | 0.01% | +12.5% |
| Q4 2019 | $1,754,000 | – | 110,800 | – | 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% |