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 | $2,724,095 | -28.4% | 56,458 | +1.3% | 0.00% | 0.0% |
| Q2 2023 | $3,806,900 | +66.0% | 55,754 | +17.8% | 0.00% | 0.0% |
| Q1 2023 | $2,293,626 | +256.9% | 47,320 | +343.7% | 0.00% | – |
| Q4 2022 | $642,567 | -15.2% | 10,665 | -14.7% | 0.00% | – |
| Q3 2022 | $758,000 | +128.3% | 12,499 | +2.2% | 0.00% | – |
| Q2 2022 | $332,000 | -66.7% | 12,231 | -55.2% | 0.00% | – |
| Q1 2022 | $997,000 | -47.1% | 27,283 | -28.6% | 0.00% | – |
| Q4 2021 | $1,886,000 | -53.0% | 38,188 | -32.2% | 0.00% | -100.0% |
| Q3 2021 | $4,012,000 | +416.3% | 56,331 | +272.7% | 0.00% | – |
| Q2 2021 | $777,000 | +34.9% | 15,116 | -34.2% | 0.00% | – |
| Q1 2021 | $576,000 | +0.5% | 22,979 | -51.9% | 0.00% | – |
| Q4 2020 | $573,000 | +57.4% | 47,743 | +31.2% | 0.00% | – |
| Q3 2020 | $364,000 | -21.0% | 36,387 | -17.5% | 0.00% | – |
| Q2 2020 | $461,000 | +20.7% | 44,109 | +23.2% | 0.00% | – |
| Q1 2020 | $382,000 | -15.7% | 35,789 | +25.1% | 0.00% | – |
| Q4 2019 | $453,000 | +114.7% | 28,598 | +6.0% | 0.00% | – |
| Q3 2019 | $211,000 | -16.3% | 26,973 | +12.9% | 0.00% | – |
| Q2 2019 | $252,000 | -10.0% | 23,896 | +3.3% | 0.00% | – |
| Q1 2019 | $280,000 | +17.6% | 23,127 | -0.1% | 0.00% | – |
| Q4 2018 | $238,000 | -23.0% | 23,146 | -2.1% | 0.00% | – |
| Q3 2018 | $309,000 | -1.6% | 23,645 | +9.9% | 0.00% | – |
| Q2 2018 | $314,000 | -68.9% | 21,507 | -21.7% | 0.00% | – |
| Q1 2018 | $1,009,000 | -3.0% | 27,463 | -1.0% | 0.00% | – |
| Q4 2017 | $1,040,000 | -58.2% | 27,754 | -27.7% | 0.00% | -100.0% |
| Q3 2017 | $2,487,000 | -83.5% | 38,393 | -86.2% | 0.00% | -80.0% |
| Q2 2017 | $15,099,000 | -14.3% | 279,015 | -11.6% | 0.01% | -16.7% |
| Q1 2017 | $17,609,000 | -3.7% | 315,634 | -15.1% | 0.01% | 0.0% |
| Q4 2016 | $18,290,000 | -18.4% | 371,810 | -0.5% | 0.01% | -25.0% |
| Q3 2016 | $22,412,000 | +64.7% | 373,720 | -4.0% | 0.01% | +60.0% |
| Q2 2016 | $13,605,000 | -20.7% | 389,195 | -6.6% | 0.01% | -28.6% |
| Q1 2016 | $17,152,000 | +2.5% | 416,736 | +69.7% | 0.01% | 0.0% |
| Q4 2015 | $16,730,000 | +3259.4% | 245,639 | +2138.8% | 0.01% | – |
| Q3 2015 | $498,000 | -77.5% | 10,972 | -73.8% | 0.00% | -100.0% |
| Q2 2015 | $2,210,000 | +20.9% | 41,954 | -12.5% | 0.00% | – |
| Q1 2015 | $1,828,000 | +545.9% | 47,948 | +251.2% | 0.00% | – |
| Q4 2014 | $283,000 | +62.6% | 13,651 | +75.0% | 0.00% | – |
| Q3 2014 | $174,000 | -9.4% | 7,802 | -8.0% | 0.00% | – |
| Q2 2014 | $192,000 | +700.0% | 8,482 | +1270.3% | 0.00% | – |
| Q1 2014 | $24,000 | +166.7% | 619 | +84.2% | 0.00% | – |
| Q4 2013 | $9,000 | +80.0% | 336 | +40.0% | 0.00% | – |
| Q3 2013 | $5,000 | +66.7% | 240 | +0.8% | 0.00% | – |
| Q2 2013 | $3,000 | – | 238 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $558,941,510 | 18.85% |
| Finepoint Capital LP | 349,300 | $16,853,725 | 8.39% |
| Palo Alto Investors LP | 1,657,458 | $79,972,349 | 7.57% |
| Birchview Capital, LP | 169,574 | $8,181,946 | 6.96% |
| First Light Asset Management, LLC | 1,494,039 | $72,087,382 | 6.85% |
| DCF Advisers, LLC | 82,950 | $4,002,338 | 2.18% |
| Prosight Management, LP | 126,202 | $6,089,247 | 1.93% |
| PFM Health Sciences, LP | 836,571 | $40,364,551 | 1.90% |
| SECTORAL ASSET MANAGEMENT INC | 172,407 | $8,318,638 | 1.62% |
| Boxer Capital, LLC | 625,000 | $30,156,250 | 1.60% |