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 | $8,181,946 | -23.2% | 169,574 | +8.6% | 6.96% | -12.8% |
| Q2 2023 | $10,659,259 | +171188.1% | 156,111 | +21.6% | 7.99% | +64.0% |
| Q1 2023 | $6,223 | -18.8% | 128,395 | +0.9% | 4.87% | -10.0% |
| Q4 2022 | $7,663 | -99.9% | 127,195 | +6.9% | 5.41% | +6.6% |
| Q3 2022 | $7,212,000 | +159.1% | 118,945 | +16.0% | 5.08% | +150.8% |
| Q2 2022 | $2,784,000 | +81.4% | 102,548 | +144.3% | 2.02% | +83.3% |
| Q1 2022 | $1,535,000 | -22.8% | 41,978 | +4.3% | 1.10% | -13.8% |
| Q4 2021 | $1,988,000 | -30.7% | 40,247 | 0.0% | 1.28% | -34.3% |
| Q3 2021 | $2,867,000 | +84.4% | 40,247 | +33.1% | 1.95% | +109.8% |
| Q2 2021 | $1,555,000 | +561.7% | 30,247 | +732.8% | 0.93% | +668.6% |
| Q3 2017 | $235,000 | – | 3,632 | – | 0.12% | – |
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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% |