PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 177 filers reported holding PROTHENA CORP PLC in Q1 2022. The put-call ratio across all filers is 0.32 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2024 | $379 | -52.7% | 18,379 | -43.2% | 0.00% | -100.0% |
| Q1 2024 | $801 | -34.5% | 32,350 | -3.9% | 0.00% | -50.0% |
| Q4 2023 | $1,223 | -18.1% | 33,648 | +8.6% | 0.00% | 0.0% |
| Q3 2023 | $1,494 | -29.8% | 30,973 | -0.6% | 0.00% | -33.3% |
| Q2 2023 | $2,129 | +39.2% | 31,175 | -1.3% | 0.00% | +50.0% |
| Q1 2023 | $1,530 | -29.0% | 31,575 | -11.8% | 0.00% | -33.3% |
| Q4 2022 | $2,156 | -99.9% | 35,780 | -1.7% | 0.00% | 0.0% |
| Q3 2022 | $2,206,000 | +133.9% | 36,391 | +4.8% | 0.00% | +200.0% |
| Q2 2022 | $943,000 | -35.6% | 34,725 | -13.3% | 0.00% | -50.0% |
| Q1 2022 | $1,465,000 | -3.7% | 40,073 | +30.2% | 0.00% | 0.0% |
| Q4 2021 | $1,521,000 | -19.0% | 30,781 | +16.8% | 0.00% | 0.0% |
| Q3 2021 | $1,878,000 | +21.3% | 26,360 | -12.5% | 0.00% | 0.0% |
| Q2 2021 | $1,548,000 | +121.8% | 30,110 | +8.4% | 0.00% | +100.0% |
| Q1 2021 | $698,000 | +109.0% | 27,769 | 0.0% | 0.00% | – |
| Q4 2020 | $334,000 | +20.6% | 27,769 | 0.0% | 0.00% | – |
| Q3 2020 | $277,000 | -4.5% | 27,769 | 0.0% | 0.00% | – |
| Q2 2020 | $290,000 | -28.6% | 27,769 | -26.9% | 0.00% | -100.0% |
| Q1 2020 | $406,000 | -32.4% | 37,969 | 0.0% | 0.00% | 0.0% |
| Q4 2019 | $601,000 | +101.7% | 37,969 | 0.0% | 0.00% | – |
| Q3 2019 | $298,000 | -32.7% | 37,969 | -9.4% | 0.00% | -100.0% |
| Q2 2019 | $443,000 | -12.3% | 41,900 | +0.7% | 0.00% | 0.0% |
| Q1 2019 | $505,000 | +18.0% | 41,600 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $428,000 | -21.3% | 41,600 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $544,000 | -10.4% | 41,600 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $607,000 | -84.5% | 41,600 | -60.9% | 0.00% | -80.0% |
| Q1 2018 | $3,906,000 | -2.1% | 106,398 | 0.0% | 0.01% | 0.0% |
| Q4 2017 | $3,989,000 | -35.1% | 106,398 | +12.1% | 0.01% | -37.5% |
| Q3 2017 | $6,147,000 | +173.1% | 94,900 | +128.1% | 0.01% | +166.7% |
| Q2 2017 | $2,251,000 | +8.7% | 41,600 | +12.1% | 0.00% | 0.0% |
| Q1 2017 | $2,070,000 | +13.4% | 37,101 | +0.0% | 0.00% | 0.0% |
| Q4 2016 | $1,825,000 | -18.0% | 37,100 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $2,225,000 | +85.0% | 37,100 | +7.8% | 0.00% | +50.0% |
| Q2 2016 | $1,203,000 | -15.0% | 34,400 | 0.0% | 0.00% | 0.0% |
| Q1 2016 | $1,416,000 | -32.9% | 34,400 | +11.0% | 0.00% | -33.3% |
| Q4 2015 | $2,111,000 | +56.3% | 31,000 | +4.0% | 0.00% | +50.0% |
| Q3 2015 | $1,351,000 | -20.7% | 29,800 | -7.9% | 0.00% | 0.0% |
| Q2 2015 | $1,704,000 | – | 32,360 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 9,426,640 | $73,905,000 | 9.33% |
| GREAT POINT PARTNERS LLC | 2,066,041 | $16,198,000 | 1.49% |
| LONESTAR CAPITAL MANAGEMENT LLC | 300,000 | $2,352,000 | 0.78% |
| TANG CAPITAL MANAGEMENT LLC | 423,823 | $3,323,000 | 0.57% |
| Palo Alto Investors LP | 1,004,449 | $7,875,000 | 0.52% |
| Orbimed Advisors | 3,022,117 | $23,693,000 | 0.45% |
| Kerrisdale Advisers, LLC | 61,640 | $483,000 | 0.30% |
| Endurant Capital Management LP | 86,407 | $677,000 | 0.24% |
| Campbell & CO Investment Adviser LLC | 47,901 | $376,000 | 0.14% |
| Boxer Capital, LLC | 79,598 | $624,000 | 0.04% |