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 | $428,847 | -28.7% | 8,888 | +0.9% | 0.00% | -50.0% |
| Q2 2023 | $601,274 | +50.4% | 8,806 | +6.7% | 0.00% | +100.0% |
| Q1 2023 | $399,878 | -23.9% | 8,250 | -5.4% | 0.00% | -50.0% |
| Q4 2022 | $525,320 | +10.4% | 8,719 | +11.0% | 0.00% | 0.0% |
| Q3 2022 | $476,000 | +130.0% | 7,858 | +3.0% | 0.00% | +100.0% |
| Q2 2022 | $207,000 | -51.2% | 7,630 | -34.3% | 0.00% | 0.0% |
| Q1 2022 | $424,000 | -40.7% | 11,609 | -19.7% | 0.00% | 0.0% |
| Q4 2021 | $715,000 | -28.8% | 14,456 | +2.5% | 0.00% | -66.7% |
| Q3 2021 | $1,004,000 | +16.3% | 14,101 | -16.0% | 0.00% | 0.0% |
| Q2 2021 | $863,000 | +149.4% | 16,785 | +22.0% | 0.00% | +200.0% |
| Q1 2021 | $346,000 | +121.8% | 13,755 | +6.0% | 0.00% | 0.0% |
| Q4 2020 | $156,000 | +52.9% | 12,974 | +27.2% | 0.00% | – |
| Q3 2020 | $102,000 | -7.3% | 10,203 | -3.4% | 0.00% | -100.0% |
| Q2 2020 | $110,000 | -50.7% | 10,558 | -25.0% | 0.00% | 0.0% |
| Q4 2019 | $223,000 | +84.3% | 14,077 | -8.5% | 0.00% | 0.0% |
| Q3 2019 | $121,000 | -28.0% | 15,377 | -3.2% | 0.00% | 0.0% |
| Q2 2019 | $168,000 | -22.6% | 15,886 | -11.3% | 0.00% | 0.0% |
| Q1 2019 | $217,000 | +18.6% | 17,909 | +0.9% | 0.00% | 0.0% |
| Q4 2018 | $183,000 | -33.9% | 17,746 | -16.2% | 0.00% | -50.0% |
| Q3 2018 | $277,000 | -13.7% | 21,164 | -3.9% | 0.00% | 0.0% |
| Q2 2018 | $321,000 | -61.6% | 22,029 | -3.3% | 0.00% | -60.0% |
| Q1 2018 | $836,000 | -15.6% | 22,784 | -13.7% | 0.01% | -28.6% |
| Q4 2017 | $990,000 | -36.8% | 26,415 | +9.2% | 0.01% | -50.0% |
| Q3 2017 | $1,567,000 | +26.4% | 24,197 | +5.6% | 0.01% | +16.7% |
| Q2 2017 | $1,240,000 | -2.1% | 22,910 | +1.0% | 0.01% | -7.7% |
| Q1 2017 | $1,266,000 | -9.2% | 22,694 | -20.0% | 0.01% | -13.3% |
| Q4 2016 | $1,395,000 | -9.0% | 28,364 | +11.0% | 0.02% | -28.6% |
| Q3 2016 | $1,533,000 | +47.1% | 25,561 | -14.3% | 0.02% | +61.5% |
| Q2 2016 | $1,042,000 | -14.3% | 29,816 | +0.9% | 0.01% | -23.5% |
| Q1 2016 | $1,216,000 | -40.3% | 29,550 | -1.2% | 0.02% | -32.0% |
| Q4 2015 | $2,037,000 | +67.0% | 29,906 | +11.1% | 0.02% | +47.1% |
| Q3 2015 | $1,220,000 | -20.0% | 26,916 | -7.0% | 0.02% | -19.0% |
| Q2 2015 | $1,525,000 | +46.9% | 28,947 | +6.4% | 0.02% | +75.0% |
| Q1 2015 | $1,038,000 | +110.1% | 27,214 | +14.5% | 0.01% | +100.0% |
| Q4 2014 | $494,000 | -9.4% | 23,778 | -3.4% | 0.01% | -14.3% |
| Q3 2014 | $545,000 | +1.3% | 24,607 | +3.1% | 0.01% | 0.0% |
| Q2 2014 | $538,000 | -54.9% | 23,878 | -23.3% | 0.01% | -53.3% |
| Q1 2014 | $1,193,000 | +321.6% | 31,133 | +191.5% | 0.02% | +275.0% |
| Q4 2013 | $283,000 | – | 10,681 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Woodford Investment Management Ltd | 10,304,751 | $360,254,000 | 16.93% |
| Palo Alto Investors LP | 788,618 | $27,570,000 | 2.08% |
| Redmile Group, LLC | 487,406 | $17,040,000 | 1.63% |
| TURNER INVESTMENTS LLC | 78,870 | $2,757,000 | 0.86% |
| Rock Springs Capital Management LP | 308,000 | $10,768,000 | 0.80% |
| SECTORAL ASSET MANAGEMENT INC | 174,746 | $6,109,000 | 0.63% |
| BB BIOTECH AG | 350,000 | $12,236,000 | 0.48% |
| MARINER INVESTMENT GROUP LLC | 33,104 | $1,157,000 | 0.39% |
| PINNACLE ASSOCIATES LTD | 436,417 | $15,257,000 | 0.33% |
| OAK RIDGE INVESTMENTS LLC | 364,250 | $12,734,000 | 0.33% |