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 | $201,781 | -60.3% | 4,182 | -43.8% | 0.00% | -100.0% |
| Q2 2023 | $507,866 | +32.5% | 7,438 | -6.0% | 0.00% | 0.0% |
| Q1 2023 | $383,397 | -21.6% | 7,910 | -2.6% | 0.00% | 0.0% |
| Q4 2022 | $489,110 | +963.3% | 8,118 | +966.8% | 0.00% | – |
| Q3 2022 | $46,000 | +48.4% | 761 | -34.4% | 0.00% | – |
| Q2 2022 | $31,000 | -26.2% | 1,160 | 0.0% | 0.00% | – |
| Q1 2022 | $42,000 | -34.4% | 1,160 | -10.1% | 0.00% | – |
| Q4 2021 | $64,000 | -30.4% | 1,290 | 0.0% | 0.00% | – |
| Q3 2021 | $92,000 | +39.4% | 1,290 | 0.0% | 0.00% | – |
| Q2 2021 | $66,000 | +106.2% | 1,290 | 0.0% | 0.00% | – |
| Q1 2021 | $32,000 | +128.6% | 1,290 | +11.2% | 0.00% | – |
| Q4 2020 | $14,000 | +16.7% | 1,160 | 0.0% | 0.00% | – |
| Q3 2020 | $12,000 | 0.0% | 1,160 | 0.0% | 0.00% | – |
| Q2 2020 | $12,000 | -7.7% | 1,160 | -6.4% | 0.00% | – |
| Q1 2020 | $13,000 | -56.7% | 1,239 | -34.8% | 0.00% | – |
| Q4 2019 | $30,000 | +233.3% | 1,900 | +63.8% | 0.00% | – |
| Q3 2019 | $9,000 | +12.5% | 1,160 | +55.7% | 0.00% | – |
| Q2 2019 | $8,000 | -11.1% | 745 | 0.0% | 0.00% | – |
| Q1 2019 | $9,000 | +12.5% | 745 | -1.6% | 0.00% | – |
| Q4 2018 | $8,000 | -20.0% | 757 | -0.9% | 0.00% | – |
| Q3 2018 | $10,000 | -9.1% | 764 | +1.6% | 0.00% | – |
| Q2 2018 | $11,000 | -65.6% | 752 | -14.9% | 0.00% | – |
| Q1 2018 | $32,000 | -17.9% | 884 | -15.5% | 0.00% | – |
| Q4 2017 | $39,000 | -30.4% | 1,046 | +21.5% | 0.00% | – |
| Q3 2017 | $56,000 | +40.0% | 861 | +15.6% | 0.00% | – |
| Q2 2017 | $40,000 | -4.8% | 745 | 0.0% | 0.00% | – |
| Q1 2017 | $42,000 | +13.5% | 745 | 0.0% | 0.00% | – |
| Q4 2016 | $37,000 | -17.8% | 745 | -0.1% | 0.00% | – |
| Q3 2016 | $45,000 | -4.3% | 746 | -45.0% | 0.00% | – |
| Q2 2016 | $47,000 | -13.0% | 1,356 | +3.8% | 0.00% | – |
| Q1 2016 | $54,000 | +8.0% | 1,306 | +77.0% | 0.00% | – |
| Q4 2015 | $50,000 | +51.5% | 738 | 0.0% | 0.00% | – |
| Q3 2015 | $33,000 | -15.4% | 738 | 0.0% | 0.00% | – |
| Q2 2015 | $39,000 | +39.3% | 738 | 0.0% | 0.00% | – |
| Q1 2015 | $28,000 | +86.7% | 738 | 0.0% | 0.00% | – |
| Q4 2014 | $15,000 | -6.2% | 738 | 0.0% | 0.00% | – |
| Q3 2014 | $16,000 | -27.3% | 738 | -24.3% | 0.00% | – |
| Q2 2014 | $22,000 | -40.5% | 975 | 0.0% | 0.00% | – |
| Q1 2014 | $37,000 | +42.3% | 975 | 0.0% | 0.00% | – |
| Q4 2013 | $26,000 | +30.0% | 975 | 0.0% | 0.00% | – |
| Q3 2013 | $20,000 | +53.8% | 975 | -1.8% | 0.00% | – |
| Q2 2013 | $13,000 | – | 993 | – | 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% |