PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 145 filers reported holding PROTHENA CORP PLC in Q1 2016. The put-call ratio across all filers is 1.24 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2018 | $11,373,000 | -55.4% | 309,819 | -54.5% | 0.09% | -54.9% |
| Q4 2017 | $25,518,000 | -36.8% | 680,659 | +9.2% | 0.20% | -37.1% |
| Q3 2017 | $40,383,000 | +9.1% | 623,489 | -8.9% | 0.31% | -1.9% |
| Q2 2017 | $37,027,000 | +177.5% | 684,160 | +186.0% | 0.32% | +174.8% |
| Q1 2017 | $13,345,000 | -17.4% | 239,194 | -27.1% | 0.12% | -19.0% |
| Q4 2016 | $16,148,000 | -2.8% | 328,275 | +18.4% | 0.14% | +6.0% |
| Q3 2016 | $16,621,000 | +99.9% | 277,150 | +16.5% | 0.13% | +94.2% |
| Q2 2016 | $8,316,000 | +340.9% | 237,880 | +419.0% | 0.07% | +392.9% |
| Q1 2016 | $1,886,000 | -39.6% | 45,830 | 0.0% | 0.01% | -33.3% |
| Q4 2015 | $3,121,000 | -93.0% | 45,830 | -95.4% | 0.02% | -93.4% |
| Q3 2015 | $44,795,000 | -38.9% | 987,979 | -29.1% | 0.32% | -29.1% |
| Q2 2015 | $73,361,000 | +10.9% | 1,392,850 | -19.7% | 0.45% | +17.3% |
| Q1 2015 | $66,170,000 | +195.5% | 1,734,928 | +60.9% | 0.38% | +188.6% |
| Q4 2014 | $22,391,000 | -12.8% | 1,078,550 | -6.9% | 0.13% | -15.9% |
| Q3 2014 | $25,670,000 | +7.2% | 1,158,395 | +9.1% | 0.16% | +10.6% |
| Q2 2014 | $23,944,000 | +21.9% | 1,061,820 | +107.0% | 0.14% | +20.3% |
| Q1 2014 | $19,650,000 | -21.2% | 512,930 | -45.4% | 0.12% | -19.7% |
| Q4 2013 | $24,923,000 | – | 939,780 | – | 0.15% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $558,941,510 | 18.85% |
| Finepoint Capital LP | 349,300 | $16,853,725 | 8.39% |
| Palo Alto Investors LP | 1,657,458 | $79,972,349 | 7.57% |
| Birchview Capital, LP | 169,574 | $8,181,946 | 6.96% |
| First Light Asset Management, LLC | 1,494,039 | $72,087,382 | 6.85% |
| DCF Advisers, LLC | 82,950 | $4,002,338 | 2.18% |
| Prosight Management, LP | 126,202 | $6,089,247 | 1.93% |
| PFM Health Sciences, LP | 836,571 | $40,364,551 | 1.90% |
| SECTORAL ASSET MANAGEMENT INC | 172,407 | $8,318,638 | 1.62% |
| Boxer Capital, LLC | 625,000 | $30,156,250 | 1.60% |