PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 158 filers reported holding PROTHENA CORP PLC in Q4 2017. The put-call ratio across all filers is 0.87 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2018 | $1,798,000 | +94.0% | 49,000 | +98.1% | 0.11% | +27.4% |
| Q4 2017 | $927,000 | -43.7% | 24,730 | -38.2% | 0.08% | +2.4% |
| Q1 2016 | $1,646,000 | +644.8% | 40,000 | +308.2% | 0.08% | +811.1% |
| Q2 2014 | $221,000 | -56.2% | 9,800 | -48.4% | 0.01% | -71.9% |
| Q4 2013 | $504,000 | – | 19,000 | – | 0.03% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $702,355,000 | 20.73% |
| Prosight Management, LP | 321,093 | $19,468,000 | 10.43% |
| First Light Asset Management, LLC | 1,538,678 | $93,290,000 | 9.44% |
| Palo Alto Investors LP | 1,649,777 | $100,026,000 | 7.91% |
| Finepoint Capital LP | 305,400 | $18,516,000 | 6.09% |
| Birchview Capital, LP | 118,945 | $7,212,000 | 5.08% |
| DCF Advisers, LLC | 68,000 | $4,123,000 | 2.66% |
| Avidity Partners Management LP | 1,967,000 | $119,259,000 | 2.42% |
| SILVERARC CAPITAL MANAGEMENT, LLC | 110,000 | $6,669,000 | 2.26% |
| DCF Advisers, LLC | 52,500 | $3,183,000 | 2.06% |