PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 130 filers reported holding PROTHENA CORP PLC in Q2 2018. The put-call ratio across all filers is 1.91 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $121 | -98.8% | 2 | -99.8% | 0.00% | -100.0% |
| Q1 2020 | $10,000 | -33.3% | 977 | 0.0% | 0.00% | 0.0% |
| Q4 2019 | $15,000 | +87.5% | 977 | +0.2% | 0.00% | 0.0% |
| Q3 2019 | $8,000 | -20.0% | 975 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $10,000 | -16.7% | 975 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $12,000 | +20.0% | 975 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $10,000 | -23.1% | 975 | 0.0% | 0.00% | -50.0% |
| Q3 2018 | $13,000 | -7.1% | 975 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $14,000 | -61.1% | 975 | 0.0% | 0.00% | -60.0% |
| Q1 2018 | $36,000 | -2.7% | 975 | 0.0% | 0.01% | -16.7% |
| Q4 2017 | $37,000 | – | 975 | – | 0.01% | – |
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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% |