PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 196 filers reported holding PROTHENA CORP PLC in Q4 2021. The put-call ratio across all filers is 0.55 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $184,317 | -24.0% | 3,820,013 | +7.5% | 0.03% | -20.6% |
| Q2 2023 | $242,653 | +56.3% | 3,553,768 | +11.0% | 0.03% | +47.8% |
| Q1 2023 | $155,216 | -19.6% | 3,202,293 | -0.1% | 0.02% | -25.8% |
| Q4 2022 | $193,156 | -99.9% | 3,205,903 | +7.5% | 0.03% | +3.3% |
| Q3 2022 | $180,796,000 | +11.6% | 2,981,941 | -50.0% | 0.03% | +50.0% |
| Q2 2022 | $161,971,000 | -27.6% | 5,965,788 | -2.4% | 0.02% | -13.0% |
| Q1 2022 | $223,580,000 | -23.9% | 6,113,742 | +2.8% | 0.02% | -11.5% |
| Q4 2021 | $293,874,000 | -31.9% | 5,948,861 | -1.9% | 0.03% | -36.6% |
| Q3 2021 | $431,841,000 | +44.3% | 6,062,629 | +4.1% | 0.04% | +46.4% |
| Q2 2021 | $299,365,000 | +259.8% | 5,823,085 | +75.8% | 0.03% | +250.0% |
| Q1 2021 | $83,206,000 | +47996.0% | 3,312,346 | +22878.5% | 0.01% | – |
| Q4 2020 | $173,000 | +19.3% | 14,415 | -0.8% | 0.00% | – |
| Q3 2020 | $145,000 | -97.6% | 14,525 | -96.9% | 0.00% | -100.0% |
| Q3 2018 | $6,086,000 | -47.7% | 465,273 | -41.7% | 0.00% | -50.0% |
| Q2 2018 | $11,639,000 | -94.4% | 798,254 | -85.9% | 0.00% | -93.9% |
| Q1 2018 | $208,388,000 | -8.9% | 5,676,587 | -7.0% | 0.03% | -10.8% |
| Q4 2017 | $228,830,000 | -35.2% | 6,103,759 | +12.0% | 0.04% | -38.3% |
| Q3 2017 | $352,925,000 | +47.5% | 5,448,891 | +23.2% | 0.06% | +39.5% |
| Q2 2017 | $239,333,000 | -4.3% | 4,422,265 | -1.3% | 0.04% | -8.5% |
| Q1 2017 | $250,093,000 | +53.4% | 4,482,764 | +35.2% | 0.05% | +46.9% |
| Q4 2016 | $163,074,000 | -19.1% | 3,315,177 | -1.4% | 0.03% | -20.0% |
| Q3 2016 | $201,532,000 | +72.7% | 3,360,550 | +0.7% | 0.04% | +60.0% |
| Q2 2016 | $116,710,000 | -14.8% | 3,338,383 | +0.3% | 0.02% | -13.8% |
| Q1 2016 | $136,980,000 | -35.1% | 3,327,983 | +7.3% | 0.03% | -34.1% |
| Q4 2015 | $211,188,000 | +50.3% | 3,100,683 | +0.1% | 0.04% | +41.9% |
| Q3 2015 | $140,513,000 | -23.2% | 3,099,103 | -10.8% | 0.03% | -18.4% |
| Q2 2015 | $183,039,000 | +39.5% | 3,475,196 | +1.0% | 0.04% | +40.7% |
| Q1 2015 | $131,175,000 | +83.9% | 3,439,296 | +0.1% | 0.03% | +80.0% |
| Q4 2014 | $71,342,000 | +9.3% | 3,436,496 | +16.6% | 0.02% | +7.1% |
| Q3 2014 | $65,288,000 | -1.4% | 2,946,196 | +0.3% | 0.01% | 0.0% |
| Q2 2014 | $66,207,000 | -23.4% | 2,935,996 | +30.2% | 0.01% | -26.3% |
| Q1 2014 | $86,404,000 | +11.8% | 2,255,396 | -22.6% | 0.02% | +111.1% |
| Q4 2013 | $77,268,000 | +1831.2% | 2,913,612 | +1373.1% | 0.01% | +800.0% |
| Q3 2013 | $4,001,000 | +14.1% | 197,784 | -27.2% | 0.00% | – |
| Q2 2013 | $3,508,000 | – | 271,768 | – | 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% |