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 | $722,850 | -95.2% | 15,000 | +3585.5% | 0.24% | +56.4% |
| Q2 2022 | $15,000,000 | -37.1% | 407 | -97.3% | 0.16% | -97.1% |
| Q1 2022 | $23,848,000 | +3118.4% | 15,000 | 0.0% | 5.38% | +3159.4% |
| Q4 2021 | $741,000 | +31.9% | 15,000 | 0.0% | 0.16% | -16.7% |
| Q4 2017 | $562,000 | -75.3% | 15,000 | -64.3% | 0.20% | -77.1% |
| Q2 2017 | $2,274,000 | -2.9% | 42,000 | 0.0% | 0.86% | -3.6% |
| Q1 2017 | $2,342,000 | +13.4% | 42,000 | 0.0% | 0.90% | -3.8% |
| Q4 2016 | $2,066,000 | – | 42,000 | – | 0.93% | – |
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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% |