PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 140 filers reported holding PROTHENA CORP PLC in Q4 2020. The put-call ratio across all filers is 0.56 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $115,269 | -25.4% | 2,389 | +5.5% | 0.01% | -25.0% |
| Q2 2023 | $154,586 | +10.2% | 2,264 | -2.8% | 0.01% | +33.3% |
| Q4 2022 | $140,322 | +121.9% | 2,329 | 0.0% | 0.01% | +100.0% |
| Q2 2022 | $63,232 | -25.8% | 2,329 | 0.0% | 0.00% | 0.0% |
| Q1 2022 | $85,172 | -81.4% | 2,329 | -74.9% | 0.00% | -50.0% |
| Q4 2021 | $458,432 | -30.6% | 9,280 | 0.0% | 0.01% | -40.0% |
| Q3 2021 | $661,014 | +175.1% | 9,280 | -3.0% | 0.01% | +150.0% |
| Q1 2021 | $240,298 | +101.3% | 9,566 | -3.8% | 0.00% | +100.0% |
| Q4 2020 | $119,391 | -10.5% | 9,941 | -22.1% | 0.00% | 0.0% |
| Q2 2020 | $133,417 | +30.7% | 12,755 | -2.0% | 0.00% | 0.0% |
| Q3 2019 | $102,069 | -25.8% | 13,019 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $137,611 | -12.9% | 13,019 | 0.0% | 0.00% | -33.3% |
| Q1 2019 | $157,920 | +17.8% | 13,019 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $134,096 | -65.4% | 13,019 | -25.1% | 0.00% | 0.0% |
| Q2 2014 | $388,000 | -5.4% | 17,383 | +62.3% | 0.00% | 0.0% |
| Q1 2014 | $410,000 | +44.4% | 10,713 | 0.0% | 0.00% | +50.0% |
| Q4 2013 | $284,000 | +30.9% | 10,713 | 0.0% | 0.00% | 0.0% |
| Q3 2013 | $217,000 | – | 10,713 | – | 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% |