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 | $2,129,369 | -35.7% | 44,132 | -9.0% | 0.00% | -40.0% |
| Q2 2023 | $3,311,853 | +54.2% | 48,504 | +9.5% | 0.01% | +66.7% |
| Q1 2023 | $2,147,609 | -17.5% | 44,308 | +2.5% | 0.00% | -25.0% |
| Q4 2022 | $2,604,005 | +1.8% | 43,220 | +2.4% | 0.00% | 0.0% |
| Q3 2022 | $2,559,000 | +118.3% | 42,203 | -2.2% | 0.00% | +100.0% |
| Q2 2022 | $1,172,000 | -25.9% | 43,171 | -0.1% | 0.00% | 0.0% |
| Q1 2022 | $1,581,000 | -31.1% | 43,235 | -6.9% | 0.00% | -33.3% |
| Q4 2021 | $2,294,000 | -27.1% | 46,432 | +5.1% | 0.00% | -25.0% |
| Q3 2021 | $3,148,000 | +30.2% | 44,191 | -6.0% | 0.00% | +33.3% |
| Q2 2021 | $2,417,000 | +107.5% | 47,022 | +1.4% | 0.00% | +50.0% |
| Q1 2021 | $1,165,000 | +109.2% | 46,386 | 0.0% | 0.00% | +100.0% |
| Q4 2020 | $557,000 | +20.3% | 46,386 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $463,000 | -4.5% | 46,386 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $485,000 | -25.4% | 46,386 | -23.6% | 0.00% | 0.0% |
| Q1 2020 | $650,000 | -34.5% | 60,719 | -3.1% | 0.00% | -50.0% |
| Q4 2019 | $992,000 | +102.0% | 62,645 | 0.0% | 0.00% | +100.0% |
| Q3 2019 | $491,000 | -24.5% | 62,645 | +1.8% | 0.00% | 0.0% |
| Q2 2019 | $650,000 | -12.9% | 61,519 | 0.0% | 0.00% | -50.0% |
| Q1 2019 | $746,000 | +15.1% | 61,519 | -2.2% | 0.00% | +100.0% |
| Q4 2018 | $648,000 | -19.4% | 62,930 | +2.3% | 0.00% | -50.0% |
| Q3 2018 | $804,000 | -10.4% | 61,487 | -0.0% | 0.00% | 0.0% |
| Q2 2018 | $897,000 | -58.7% | 61,491 | +4.0% | 0.00% | -60.0% |
| Q1 2018 | $2,171,000 | -4.3% | 59,139 | -2.3% | 0.01% | 0.0% |
| Q4 2017 | $2,269,000 | -43.0% | 60,534 | -1.5% | 0.01% | -44.4% |
| Q3 2017 | $3,980,000 | +8.0% | 61,452 | -9.7% | 0.01% | +12.5% |
| Q2 2017 | $3,684,000 | -3.5% | 68,067 | -0.5% | 0.01% | 0.0% |
| Q1 2017 | $3,818,000 | +8.3% | 68,431 | -4.5% | 0.01% | +14.3% |
| Q4 2016 | $3,524,000 | -20.1% | 71,631 | -2.6% | 0.01% | -22.2% |
| Q3 2016 | $4,410,000 | +73.2% | 73,531 | +1.0% | 0.01% | +80.0% |
| Q2 2016 | $2,546,000 | -13.8% | 72,831 | +1.5% | 0.01% | -16.7% |
| Q1 2016 | $2,953,000 | -25.2% | 71,754 | +23.8% | 0.01% | -40.0% |
| Q4 2015 | $3,946,000 | +52.6% | 57,940 | +1.6% | 0.01% | +42.9% |
| Q3 2015 | $2,586,000 | -14.1% | 57,040 | -0.2% | 0.01% | 0.0% |
| Q2 2015 | $3,010,000 | +62.3% | 57,140 | +17.5% | 0.01% | +75.0% |
| Q1 2015 | $1,855,000 | +80.8% | 48,637 | -1.6% | 0.00% | +100.0% |
| Q4 2014 | $1,026,000 | -6.0% | 49,437 | +0.4% | 0.00% | -33.3% |
| Q3 2014 | $1,091,000 | +21.0% | 49,227 | +23.1% | 0.00% | +50.0% |
| Q2 2014 | $902,000 | -8.7% | 39,997 | +55.0% | 0.00% | -33.3% |
| Q1 2014 | $988,000 | +44.4% | 25,797 | 0.0% | 0.00% | +50.0% |
| Q4 2013 | $684,000 | +58.7% | 25,797 | +21.1% | 0.00% | +100.0% |
| Q3 2013 | $431,000 | +61.4% | 21,297 | +2.9% | 0.00% | 0.0% |
| Q2 2013 | $267,000 | – | 20,697 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $697,952,870 | 21.24% |
| Prosight Management, LP | 330,000 | $19,882,500 | 10.84% |
| First Light Asset Management, LLC | 1,535,599 | $92,519,840 | 8.59% |
| Palo Alto Investors LP | 1,658,577 | $99,929,264 | 8.52% |
| Finepoint Capital LP | 322,900 | $19,455 | 6.29% |
| Birchview Capital, LP | 127,195 | $7,663 | 5.41% |
| Avidity Partners Management LP | 2,953,000 | $177,918,250 | 3.85% |
| DCF Advisers, LLC | 74,100 | $4,464,525 | 3.02% |
| PFM Health Sciences, LP | 875,464 | $52,746,706 | 1.89% |
| SECTORAL ASSET MANAGEMENT INC | 115,200 | $6,940,800 | 1.34% |