PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 123 filers reported holding PROTHENA CORP PLC in Q1 2015. The put-call ratio across all filers is 1.68 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $263,000 | +526.2% | 5,338 | +789.7% | 0.02% | +600.0% |
| Q3 2021 | $42,000 | -31.1% | 600 | -75.5% | 0.00% | -50.0% |
| Q1 2021 | $61,000 | +144.0% | 2,451 | +16.7% | 0.01% | +100.0% |
| Q4 2020 | $25,000 | -56.1% | 2,100 | -61.1% | 0.00% | -50.0% |
| Q2 2019 | $57,000 | -49.1% | 5,400 | -37.2% | 0.01% | -25.0% |
| Q3 2018 | $112,000 | -0.9% | 8,595 | +10.2% | 0.01% | 0.0% |
| Q2 2018 | $113,000 | +2.7% | 7,798 | +159.7% | 0.01% | -11.1% |
| Q1 2018 | $110,000 | -38.5% | 3,003 | -37.4% | 0.01% | -47.1% |
| Q4 2017 | $179,000 | +2883.3% | 4,794 | +4380.4% | 0.02% | +1600.0% |
| Q3 2017 | $6,000 | -94.1% | 107 | -94.3% | 0.00% | -90.0% |
| Q2 2017 | $101,000 | +676.9% | 1,870 | +672.7% | 0.01% | +900.0% |
| Q1 2017 | $13,000 | -45.8% | 242 | -41.3% | 0.00% | -66.7% |
| Q3 2016 | $24,000 | +26.3% | 412 | -25.4% | 0.00% | +50.0% |
| Q2 2016 | $19,000 | -74.7% | 552 | -72.0% | 0.00% | -89.5% |
| Q1 2015 | $75,000 | +66.7% | 1,971 | +64.2% | 0.02% | +72.7% |
| Q1 2014 | $45,000 | – | 1,200 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Woodford Investment Management Ltd | 5,527,525 | $291,135,000 | 22.33% |
| Independence Capital Asset Partners, LLC | 20,530 | $1,081,000 | 1.68% |
| TURNER INVESTMENTS LLC | 173,820 | $9,155,000 | 1.68% |
| Palo Alto Investors LP | 695,918 | $36,654,000 | 1.63% |
| Rock Springs Capital Management LP | 250,000 | $13,168,000 | 0.96% |
| Visium Asset Management, LP | 996,887 | $52,506,000 | 0.74% |
| EAM Investors, LLC | 117,809 | $6,205,000 | 0.73% |
| SPHERA FUNDS MANAGEMENT LTD. | 115,133 | $6,064,000 | 0.59% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1,392,850 | $73,361,000 | 0.45% |
| MARINER INVESTMENT GROUP LLC | 23,600 | $1,243,000 | 0.32% |