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 | $4,151 | -10.3% | 86,035 | +26.9% | 0.00% | 0.0% |
| Q2 2023 | $4,630 | +47.9% | 67,812 | +5.0% | 0.00% | +200.0% |
| Q1 2023 | $3,131 | -34.5% | 64,604 | -18.6% | 0.00% | -50.0% |
| Q4 2022 | $4,780 | -99.9% | 79,339 | +16.6% | 0.00% | -60.0% |
| Q3 2022 | $4,126,000 | +8495.8% | 68,062 | +3721.6% | 0.01% | – |
| Q2 2022 | $48,000 | -83.5% | 1,781 | -77.5% | 0.00% | – |
| Q1 2022 | $291,000 | -94.0% | 7,930 | -91.9% | 0.00% | -100.0% |
| Q4 2021 | $4,830,000 | +276.2% | 97,760 | +442.0% | 0.00% | 0.0% |
| Q3 2021 | $1,284,000 | +199.3% | 18,036 | +115.7% | 0.00% | – |
| Q2 2021 | $429,000 | -42.0% | 8,360 | -71.7% | 0.00% | – |
| Q1 2021 | $740,000 | +259.2% | 29,497 | +71.4% | 0.00% | – |
| Q4 2020 | $206,000 | -4.2% | 17,209 | -19.6% | 0.00% | – |
| Q3 2020 | $215,000 | -26.9% | 21,409 | -24.0% | 0.00% | – |
| Q2 2020 | $294,000 | -80.2% | 28,166 | -79.7% | 0.00% | -100.0% |
| Q1 2020 | $1,484,000 | -49.7% | 138,748 | -25.5% | 0.00% | -50.0% |
| Q4 2019 | $2,949,000 | +630.0% | 186,346 | +262.5% | 0.00% | – |
| Q3 2019 | $404,000 | -22.9% | 51,402 | +3.8% | 0.00% | – |
| Q2 2019 | $524,000 | -36.9% | 49,518 | -27.7% | 0.00% | – |
| Q1 2019 | $831,000 | -20.8% | 68,476 | -32.8% | 0.00% | – |
| Q4 2018 | $1,049,000 | -24.7% | 101,841 | -4.4% | 0.00% | – |
| Q3 2018 | $1,394,000 | +300.6% | 106,537 | +345.5% | 0.00% | – |
| Q2 2018 | $348,000 | -98.4% | 23,913 | -95.8% | 0.00% | -100.0% |
| Q1 2018 | $21,114,000 | +643.2% | 575,141 | +659.0% | 0.02% | +700.0% |
| Q4 2017 | $2,841,000 | +47.0% | 75,775 | +153.8% | 0.00% | 0.0% |
| Q3 2017 | $1,932,000 | +176.0% | 29,851 | +130.9% | 0.00% | +100.0% |
| Q2 2017 | $700,000 | +159.3% | 12,929 | +166.9% | 0.00% | – |
| Q1 2017 | $270,000 | +13.9% | 4,845 | +0.6% | 0.00% | – |
| Q4 2016 | $237,000 | -8.1% | 4,814 | +12.0% | 0.00% | – |
| Q3 2016 | $258,000 | +658.8% | 4,300 | +344.7% | 0.00% | – |
| Q2 2016 | $34,000 | -74.8% | 967 | -70.6% | 0.00% | – |
| Q1 2016 | $135,000 | +2.3% | 3,293 | +70.8% | 0.00% | – |
| Q4 2015 | $132,000 | -68.3% | 1,928 | -79.2% | 0.00% | -100.0% |
| Q3 2015 | $416,000 | +190.9% | 9,250 | +236.1% | 0.00% | – |
| Q2 2015 | $143,000 | -80.5% | 2,752 | -85.8% | 0.00% | -100.0% |
| Q1 2015 | $735,000 | +59.4% | 19,362 | -16.1% | 0.00% | – |
| Q4 2014 | $461,000 | -14.9% | 23,090 | -6.6% | 0.00% | – |
| Q3 2014 | $542,000 | +10.8% | 24,732 | +11.1% | 0.00% | – |
| Q2 2014 | $489,000 | +103.8% | 22,252 | +252.0% | 0.00% | – |
| Q1 2014 | $240,000 | +87.5% | 6,321 | +28.8% | 0.00% | – |
| Q4 2013 | $128,000 | +357.1% | 4,909 | +128.2% | 0.00% | – |
| Q2 2013 | $28,000 | – | 2,151 | – | 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% |