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 | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $1,478,000 | +104.7% | 28,733 | -0.0% | 0.05% | +88.5% |
| Q1 2021 | $722,000 | +72100.0% | 28,742 | +68333.3% | 0.03% | – |
| Q4 2020 | $1,000 | – | 42 | 0.0% | 0.00% | – |
| Q3 2020 | $0 | – | 42 | 0.0% | 0.00% | – |
| Q2 2020 | $0 | – | 42 | 0.0% | 0.00% | – |
| Q1 2020 | $0 | -100.0% | 42 | 0.0% | 0.00% | – |
| Q4 2019 | $1,000 | – | 42 | 0.0% | 0.00% | – |
| Q3 2019 | $0 | – | 42 | 0.0% | 0.00% | – |
| Q2 2019 | $0 | -100.0% | 42 | -99.6% | 0.00% | -100.0% |
| Q1 2015 | $427,000 | +84.8% | 11,200 | +0.9% | 0.01% | +62.5% |
| Q4 2014 | $231,000 | -63.4% | 11,100 | -61.1% | 0.01% | -65.2% |
| Q3 2014 | $631,000 | +57.4% | 28,520 | +60.8% | 0.02% | +53.3% |
| Q2 2014 | $401,000 | – | 17,736 | – | 0.02% | – |
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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% |