PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 193 filers reported holding PROTHENA CORP PLC in Q3 2021. The put-call ratio across all filers is 0.62 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $6,224 | -29.3% | 129 | 0.0% | 0.00% | -50.0% |
| Q2 2023 | $8,808 | +40.9% | 129 | 0.0% | 0.00% | +100.0% |
| Q1 2023 | $6,253 | -19.5% | 129 | 0.0% | 0.00% | -50.0% |
| Q4 2022 | $7,772 | -2.8% | 129 | 0.0% | 0.00% | 0.0% |
| Q3 2022 | $8,000 | +100.0% | 129 | 0.0% | 0.00% | +100.0% |
| Q2 2022 | $4,000 | -20.0% | 129 | 0.0% | 0.00% | 0.0% |
| Q1 2022 | $5,000 | -95.8% | 129 | -94.6% | 0.00% | -94.4% |
| Q4 2021 | $118,000 | -30.6% | 2,392 | 0.0% | 0.02% | -35.7% |
| Q3 2021 | $170,000 | -28.9% | 2,392 | -48.6% | 0.03% | -28.2% |
| Q2 2021 | $239,000 | +3.5% | 4,654 | -49.3% | 0.04% | -4.9% |
| Q1 2021 | $231,000 | +56.1% | 9,179 | -25.7% | 0.04% | +41.4% |
| Q4 2020 | $148,000 | -24.5% | 12,361 | -37.1% | 0.03% | -32.6% |
| Q3 2020 | $196,000 | +3.7% | 19,658 | +8.8% | 0.04% | -2.3% |
| Q2 2020 | $189,000 | -2.1% | 18,067 | 0.0% | 0.04% | -21.4% |
| Q1 2020 | $193,000 | -26.1% | 18,067 | +9.7% | 0.06% | -9.7% |
| Q4 2019 | $261,000 | +146.2% | 16,476 | +21.4% | 0.06% | +113.8% |
| Q3 2019 | $106,000 | -3.6% | 13,576 | +30.2% | 0.03% | 0.0% |
| Q2 2019 | $110,000 | -12.7% | 10,426 | 0.0% | 0.03% | -23.7% |
| Q1 2019 | $126,000 | +17.8% | 10,426 | 0.0% | 0.04% | +2.7% |
| Q4 2018 | $107,000 | -21.3% | 10,426 | 0.0% | 0.04% | -19.6% |
| Q3 2018 | $136,000 | -10.5% | 10,426 | +0.3% | 0.05% | -13.2% |
| Q2 2018 | $152,000 | -42.0% | 10,397 | +45.4% | 0.05% | -36.9% |
| Q1 2018 | $262,000 | +13.4% | 7,150 | +16.3% | 0.08% | +13.5% |
| Q4 2017 | $231,000 | -61.4% | 6,150 | -33.5% | 0.07% | -63.0% |
| Q3 2017 | $599,000 | +52.8% | 9,250 | +27.6% | 0.20% | +37.0% |
| Q2 2017 | $392,000 | -3.0% | 7,250 | 0.0% | 0.15% | -7.6% |
| Q1 2017 | $404,000 | +31.6% | 7,250 | +16.0% | 0.16% | +21.5% |
| Q4 2016 | $307,000 | -11.8% | 6,250 | +7.8% | 0.13% | -15.0% |
| Q3 2016 | $348,000 | +79.4% | 5,800 | +4.5% | 0.15% | +71.9% |
| Q2 2016 | $194,000 | +4.9% | 5,550 | +23.3% | 0.09% | -11.9% |
| Q1 2016 | $185,000 | +172.1% | 4,500 | +350.0% | 0.10% | +159.0% |
| Q4 2015 | $68,000 | +51.1% | 1,000 | 0.0% | 0.04% | +34.5% |
| Q3 2015 | $45,000 | -15.1% | 1,000 | 0.0% | 0.03% | -12.1% |
| Q2 2015 | $53,000 | +39.5% | 1,000 | 0.0% | 0.03% | +43.5% |
| Q1 2015 | $38,000 | – | 1,000 | – | 0.02% | – |
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% |