PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 189 filers reported holding PROTHENA CORP PLC in Q1 2023. The put-call ratio across all filers is 0.56 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $20,362 | -29.3% | 422 | 0.0% | 0.00% | – |
| Q2 2023 | $28,814 | +42.9% | 422 | +1.4% | 0.00% | – |
| Q1 2023 | $20,164 | -19.5% | 416 | 0.0% | 0.00% | – |
| Q4 2022 | $25,064 | -26.3% | 416 | -26.5% | 0.00% | – |
| Q3 2022 | $34,000 | +209.1% | 566 | +36.1% | 0.00% | – |
| Q2 2022 | $11,000 | -26.7% | 416 | 0.0% | 0.00% | – |
| Q1 2022 | $15,000 | -28.6% | 416 | 0.0% | 0.00% | – |
| Q4 2021 | $21,000 | -30.0% | 416 | 0.0% | 0.00% | – |
| Q3 2021 | $30,000 | +42.9% | 416 | 0.0% | 0.00% | – |
| Q2 2021 | $21,000 | +110.0% | 416 | 0.0% | 0.00% | – |
| Q1 2021 | $10,000 | +100.0% | 416 | 0.0% | 0.00% | – |
| Q4 2020 | $5,000 | +25.0% | 416 | -0.5% | 0.00% | – |
| Q3 2020 | $4,000 | 0.0% | 418 | +0.5% | 0.00% | – |
| Q2 2020 | $4,000 | +100.0% | 416 | +38.7% | 0.00% | – |
| Q3 2019 | $2,000 | -50.0% | 300 | -13.0% | 0.00% | – |
| Q2 2019 | $4,000 | 0.0% | 345 | +6.5% | 0.00% | – |
| Q1 2019 | $4,000 | 0.0% | 324 | 0.0% | 0.00% | – |
| Q4 2018 | $4,000 | 0.0% | 324 | 0.0% | 0.00% | – |
| Q3 2018 | $4,000 | 0.0% | 324 | 0.0% | 0.00% | – |
| Q2 2018 | $4,000 | -97.1% | 324 | -91.3% | 0.00% | – |
| Q1 2018 | $137,000 | -31.8% | 3,724 | -30.8% | 0.00% | – |
| Q4 2017 | $201,000 | -38.7% | 5,384 | +6.7% | 0.00% | – |
| Q3 2017 | $328,000 | +24.2% | 5,044 | +3.2% | 0.00% | – |
| Q2 2017 | $264,000 | +95.6% | 4,888 | +103.7% | 0.00% | – |
| Q1 2017 | $135,000 | -17.2% | 2,400 | -27.7% | 0.00% | – |
| Q4 2016 | $163,000 | -1.2% | 3,320 | +21.2% | 0.00% | – |
| Q3 2016 | $165,000 | +120.0% | 2,740 | +26.4% | 0.00% | – |
| Q2 2016 | $75,000 | +650.0% | 2,167 | +753.1% | 0.00% | – |
| Q1 2016 | $10,000 | -44.4% | 254 | +2.8% | 0.00% | – |
| Q4 2015 | $18,000 | -92.4% | 247 | -95.3% | 0.00% | – |
| Q3 2015 | $237,000 | -39.4% | 5,247 | -29.3% | 0.00% | – |
| Q2 2015 | $391,000 | +6.8% | 7,421 | -22.8% | 0.00% | – |
| Q1 2015 | $366,000 | +84.8% | 9,618 | +0.5% | 0.00% | – |
| Q4 2014 | $198,000 | -21.7% | 9,574 | -15.9% | 0.00% | – |
| Q3 2014 | $253,000 | +7.2% | 11,380 | +9.2% | 0.00% | – |
| Q2 2014 | $236,000 | +11.8% | 10,418 | +88.5% | 0.00% | – |
| Q1 2014 | $211,000 | -18.8% | 5,526 | -43.4% | 0.00% | – |
| Q4 2013 | $260,000 | +5100.0% | 9,764 | +3111.8% | 0.00% | – |
| Q3 2013 | $5,000 | 0.0% | 304 | +4.8% | 0.00% | – |
| Q2 2013 | $5,000 | – | 290 | – | 0.00% | – |
Download | ||||||
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% |