PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 143 filers reported holding PROTHENA CORP PLC in Q2 2016. The put-call ratio across all filers is 2.21 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $2,002,761 | -29.3% | 41,508 | 0.0% | 0.08% | -20.4% |
| Q2 2023 | $2,834,166 | +40.9% | 41,508 | 0.0% | 0.10% | +40.0% |
| Q1 2023 | $2,011,893 | -19.6% | 41,508 | 0.0% | 0.07% | -26.3% |
| Q4 2022 | $2,500,857 | -15.7% | 41,508 | -15.1% | 0.10% | -23.4% |
| Q3 2022 | $2,966,000 | +80.5% | 48,914 | -19.2% | 0.12% | +100.0% |
| Q2 2022 | $1,643,000 | -25.8% | 60,512 | 0.0% | 0.06% | -8.8% |
| Q1 2022 | $2,213,000 | -26.0% | 60,512 | 0.0% | 0.07% | -18.1% |
| Q4 2021 | $2,989,000 | -30.6% | 60,512 | 0.0% | 0.08% | -31.4% |
| Q3 2021 | $4,310,000 | -17.7% | 60,512 | -40.6% | 0.12% | 0.0% |
| Q2 2021 | $5,239,000 | +62.7% | 101,905 | -20.5% | 0.12% | +68.1% |
| Q1 2021 | $3,221,000 | +109.2% | 128,223 | 0.0% | 0.07% | +105.7% |
| Q4 2020 | $1,540,000 | +20.2% | 128,223 | 0.0% | 0.04% | +9.4% |
| Q3 2020 | $1,281,000 | -4.5% | 128,223 | 0.0% | 0.03% | +3.2% |
| Q2 2020 | $1,341,000 | -2.3% | 128,223 | 0.0% | 0.03% | -11.4% |
| Q1 2020 | $1,372,000 | -38.5% | 128,223 | -9.0% | 0.04% | -20.5% |
| Q4 2019 | $2,231,000 | +49.7% | 140,943 | -25.8% | 0.04% | +33.3% |
| Q3 2019 | $1,490,000 | -25.8% | 189,991 | 0.0% | 0.03% | -29.8% |
| Q2 2019 | $2,008,000 | +2.3% | 189,991 | +17.4% | 0.05% | +2.2% |
| Q1 2019 | $1,963,000 | +17.8% | 161,846 | 0.0% | 0.05% | -17.9% |
| Q4 2018 | $1,667,000 | -5.7% | 161,846 | +19.7% | 0.06% | +12.0% |
| Q3 2018 | $1,768,000 | -10.3% | 135,200 | 0.0% | 0.05% | +6.4% |
| Q2 2018 | $1,971,000 | -31.3% | 135,200 | +72.9% | 0.05% | -41.2% |
| Q1 2018 | $2,870,000 | +8.8% | 78,200 | +11.1% | 0.08% | +14.3% |
| Q4 2017 | $2,639,000 | -34.3% | 70,400 | +13.5% | 0.07% | -30.7% |
| Q3 2017 | $4,015,000 | +11.6% | 62,000 | -6.8% | 0.10% | +3.1% |
| Q2 2017 | $3,598,000 | +5.1% | 66,500 | +8.3% | 0.10% | +3.2% |
| Q1 2017 | $3,425,000 | +67.4% | 61,400 | +47.6% | 0.10% | +58.3% |
| Q4 2016 | $2,046,000 | -24.3% | 41,600 | -7.8% | 0.06% | -4.8% |
| Q3 2016 | $2,704,000 | +93.4% | 45,100 | +12.8% | 0.06% | +80.0% |
| Q2 2016 | $1,398,000 | – | 40,000 | – | 0.04% | – |
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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% |