PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 130 filers reported holding PROTHENA CORP PLC in Q2 2018. The put-call ratio across all filers is 1.91 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $1,570,000 | +91.2% | 62,500 | -8.6% | 0.00% | 0.0% |
| Q4 2020 | $821,000 | +18.0% | 68,384 | -1.9% | 0.00% | 0.0% |
| Q3 2020 | $696,000 | -2.4% | 69,684 | +2.2% | 0.00% | 0.0% |
| Q2 2020 | $713,000 | -25.4% | 68,184 | -23.7% | 0.00% | 0.0% |
| Q1 2020 | $956,000 | -28.9% | 89,340 | +5.2% | 0.00% | 0.0% |
| Q4 2019 | $1,345,000 | +175.1% | 84,940 | +36.3% | 0.00% | – |
| Q3 2019 | $489,000 | -12.7% | 62,340 | +17.6% | 0.00% | -100.0% |
| Q2 2019 | $560,000 | -0.4% | 52,991 | +14.5% | 0.00% | 0.0% |
| Q1 2019 | $562,000 | +17.8% | 46,300 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $477,000 | -32.1% | 46,300 | -13.8% | 0.00% | 0.0% |
| Q3 2018 | $703,000 | -15.7% | 53,726 | -6.0% | 0.00% | 0.0% |
| Q2 2018 | $834,000 | -62.2% | 57,168 | -4.9% | 0.00% | -66.7% |
| Q1 2018 | $2,206,000 | -6.6% | 60,100 | -4.6% | 0.00% | 0.0% |
| Q4 2017 | $2,362,000 | -39.9% | 63,000 | +3.8% | 0.00% | -50.0% |
| Q3 2017 | $3,932,000 | +21.9% | 60,700 | +1.8% | 0.01% | +20.0% |
| Q2 2017 | $3,226,000 | -0.8% | 59,600 | +2.2% | 0.01% | 0.0% |
| Q1 2017 | $3,253,000 | +8.6% | 58,300 | -4.3% | 0.01% | 0.0% |
| Q4 2016 | $2,996,000 | -22.1% | 60,900 | -5.0% | 0.01% | -16.7% |
| Q3 2016 | $3,844,000 | +60.3% | 64,100 | -6.6% | 0.01% | +50.0% |
| Q2 2016 | $2,398,000 | -29.2% | 68,600 | -16.6% | 0.00% | -20.0% |
| Q1 2016 | $3,387,000 | -45.8% | 82,300 | -10.3% | 0.01% | -50.0% |
| Q4 2015 | $6,246,000 | +371.8% | 91,700 | +214.0% | 0.01% | +400.0% |
| Q3 2015 | $1,324,000 | +11.3% | 29,200 | +29.2% | 0.00% | 0.0% |
| Q2 2015 | $1,190,000 | +121.6% | 22,600 | 0.0% | 0.00% | +100.0% |
| Q1 2015 | $537,000 | 0.0% | 22,600 | 0.0% | 0.00% | 0.0% |
| Q4 2014 | $537,000 | +7.2% | 22,600 | 0.0% | 0.00% | 0.0% |
| Q3 2014 | $501,000 | -1.8% | 22,600 | 0.0% | 0.00% | 0.0% |
| Q2 2014 | $510,000 | -38.4% | 22,600 | -18.4% | 0.00% | 0.0% |
| Q1 2014 | $828,000 | +46.3% | 27,710 | +34.5% | 0.00% | 0.0% |
| Q4 2013 | $566,000 | +32.6% | 20,600 | -2.4% | 0.00% | 0.0% |
| Q3 2013 | $427,000 | – | 21,100 | – | 0.00% | – |
Download | ||||||
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% |