PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 148 filers reported holding PROTHENA CORP PLC in Q1 2018. The put-call ratio across all filers is 0.26 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $3 | -99.9% | 50 | -37.5% | 0.00% | -50.0% |
| Q3 2022 | $5,000 | +66.7% | 80 | -27.3% | 0.00% | +100.0% |
| Q2 2022 | $3,000 | -25.0% | 110 | 0.0% | 0.00% | -50.0% |
| Q1 2022 | $4,000 | -20.0% | 110 | 0.0% | 0.00% | 0.0% |
| Q4 2021 | $5,000 | -37.5% | 110 | 0.0% | 0.00% | -33.3% |
| Q3 2021 | $8,000 | -52.9% | 110 | -66.7% | 0.00% | -50.0% |
| Q2 2021 | $17,000 | +112.5% | 330 | 0.0% | 0.01% | +100.0% |
| Q1 2021 | $8,000 | +100.0% | 330 | 0.0% | 0.00% | +50.0% |
| Q4 2020 | $4,000 | +33.3% | 330 | 0.0% | 0.00% | +100.0% |
| Q3 2020 | $3,000 | -25.0% | 330 | +43.5% | 0.00% | -50.0% |
| Q4 2019 | $4,000 | +300.0% | 230 | +155.6% | 0.00% | +100.0% |
| Q3 2019 | $1,000 | 0.0% | 90 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $1,000 | 0.0% | 90 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $1,000 | 0.0% | 90 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $1,000 | 0.0% | 90 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $1,000 | 0.0% | 90 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $1,000 | -66.7% | 90 | 0.0% | 0.00% | -50.0% |
| Q1 2018 | $3,000 | 0.0% | 90 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $3,000 | -100.0% | 90 | -35.7% | 0.00% | -66.7% |
| Q3 2017 | $9,068,000 | +19.7% | 140 | 0.0% | 0.01% | +20.0% |
| Q2 2017 | $7,577,000 | +6.7% | 140 | 0.0% | 0.01% | 0.0% |
| Q1 2017 | $7,098,000 | +88625.0% | 140 | 0.0% | 0.01% | 0.0% |
| Q4 2016 | $8,000 | +33.3% | 140 | 0.0% | 0.01% | +25.0% |
| Q2 2016 | $6,000 | +100.0% | 140 | +133.3% | 0.00% | +100.0% |
| Q1 2016 | $3,000 | – | 60 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,284,280 | $580,125,000 | 21.68% |
| Prosight Management, LP | 422,000 | $21,695,000 | 13.57% |
| First Light Asset Management, LLC | 1,927,829 | $99,110,000 | 5.95% |
| Palo Alto Investors LP | 1,731,482 | $89,015,000 | 4.90% |
| DCF Advisers, LLC | 61,750 | $3,175,000 | 1.12% |
| APOGEM CAPITAL LLC | 32,104 | $1,650,000 | 1.05% |
| EAM Global Investors LLC | 70,255 | $3,612,000 | 1.00% |
| Rock Springs Capital Management LP | 950,091 | $48,844,000 | 0.96% |
| Atika Capital Management LLC | 234,000 | $12,030,000 | 0.95% |
| Birchview Capital, LP | 30,247 | $1,555,000 | 0.93% |