PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 138 filers reported holding PROTHENA CORP PLC in Q2 2019. The put-call ratio across all filers is 0.81 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $9 | -30.8% | 195 | 0.0% | 0.00% | – |
| Q2 2023 | $13 | +44.4% | 195 | 0.0% | 0.00% | – |
| Q1 2023 | $9 | -25.0% | 195 | 0.0% | 0.00% | – |
| Q4 2022 | $12 | -99.9% | 195 | +26.6% | 0.00% | – |
| Q3 2022 | $9,000 | +125.0% | 154 | 0.0% | 0.00% | – |
| Q2 2022 | $4,000 | -33.3% | 154 | 0.0% | 0.00% | – |
| Q1 2022 | $6,000 | -25.0% | 154 | 0.0% | 0.00% | – |
| Q4 2021 | $8,000 | -27.3% | 154 | 0.0% | 0.00% | – |
| Q3 2021 | $11,000 | +120.0% | 154 | +75.0% | 0.00% | – |
| Q2 2021 | $5,000 | +150.0% | 88 | 0.0% | 0.00% | – |
| Q1 2021 | $2,000 | +100.0% | 88 | 0.0% | 0.00% | – |
| Q4 2020 | $1,000 | -96.9% | 88 | -58.5% | 0.00% | -100.0% |
| Q2 2020 | $32,000 | +1500.0% | 212 | 0.0% | 0.00% | – |
| Q1 2020 | $2,000 | -33.3% | 212 | 0.0% | 0.00% | – |
| Q4 2019 | $3,000 | +50.0% | 212 | 0.0% | 0.00% | – |
| Q3 2019 | $2,000 | 0.0% | 212 | 0.0% | 0.00% | – |
| Q2 2019 | $2,000 | -33.3% | 212 | 0.0% | 0.00% | – |
| Q1 2019 | $3,000 | 0.0% | 212 | 0.0% | 0.00% | – |
| Q3 2018 | $3,000 | 0.0% | 212 | 0.0% | 0.00% | – |
| Q2 2018 | $3,000 | -62.5% | 212 | 0.0% | 0.00% | – |
| Q1 2018 | $8,000 | – | 212 | – | 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% |