PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 160 filers reported holding PROTHENA CORP PLC in Q4 2015. The put-call ratio across all filers is 1.22 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2017 | $648,000 | +19.8% | 10,000 | 0.0% | 0.02% | +4.3% |
| Q2 2017 | $541,000 | +98.9% | 10,000 | +150.0% | 0.02% | +21.1% |
| Q4 2015 | $272,000 | +19.8% | 4,000 | -20.0% | 0.02% | +90.0% |
| Q3 2015 | $227,000 | -13.7% | 5,000 | 0.0% | 0.01% | 0.0% |
| Q2 2015 | $263,000 | -72.4% | 5,000 | -80.0% | 0.01% | -76.2% |
| Q1 2015 | $954,000 | -29.3% | 25,000 | -61.5% | 0.04% | -8.7% |
| Q4 2014 | $1,349,000 | -6.3% | 65,000 | 0.0% | 0.05% | +31.4% |
| Q3 2014 | $1,440,000 | -1.8% | 65,000 | 0.0% | 0.04% | +9.4% |
| Q2 2014 | $1,466,000 | -4.3% | 65,000 | +62.5% | 0.03% | +3.2% |
| Q1 2014 | $1,532,000 | -23.0% | 40,000 | -46.7% | 0.03% | -27.9% |
| Q4 2013 | $1,989,000 | +14.3% | 75,000 | -12.8% | 0.04% | +126.3% |
| Q3 2013 | $1,740,000 | – | 86,000 | – | 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% |