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 | ||||
|---|---|---|---|---|---|---|
| Q2 2017 | $215,000 | -60.1% | 3,980 | -58.8% | 0.14% | -59.7% |
| Q1 2017 | $539,000 | -32.5% | 9,660 | -40.5% | 0.35% | +8.7% |
| Q4 2016 | $798,000 | -84.4% | 16,230 | -81.0% | 0.32% | -81.0% |
| Q3 2016 | $5,120,000 | +85.7% | 85,390 | +8.3% | 1.69% | +96.1% |
| Q2 2016 | $2,757,000 | -64.1% | 78,870 | -57.7% | 0.86% | -58.4% |
| Q1 2016 | $7,669,000 | -25.0% | 186,300 | +24.1% | 2.08% | -1.7% |
| Q4 2015 | $10,224,000 | +33.3% | 150,110 | -11.2% | 2.12% | +36.4% |
| Q3 2015 | $7,668,000 | -16.2% | 169,120 | -2.7% | 1.55% | -7.4% |
| Q2 2015 | $9,155,000 | -4.0% | 173,820 | -30.5% | 1.68% | -2.3% |
| Q1 2015 | $9,535,000 | +244.7% | 249,990 | +87.6% | 1.71% | +421.0% |
| Q4 2014 | $2,766,000 | -2.4% | 133,240 | +4.2% | 0.33% | +93.5% |
| Q3 2014 | $2,834,000 | -16.4% | 127,910 | -14.9% | 0.17% | +13.3% |
| Q2 2014 | $3,388,000 | +6543.1% | 150,240 | +5890.4% | 0.15% | +14900.0% |
| Q3 2013 | $51,000 | +59.4% | 2,508 | 0.0% | 0.00% | – |
| Q2 2013 | $32,000 | – | 2,508 | – | 0.00% | – |
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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% |