PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 151 filers reported holding PROTHENA CORP PLC in Q1 2017. The put-call ratio across all filers is 2.05 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2019 | $5,000 | +400.0% | 353 | +33.2% | 0.00% | – |
| Q3 2019 | $1,000 | -50.0% | 265 | +2.3% | 0.00% | – |
| Q2 2019 | $2,000 | -33.3% | 259 | -4.4% | 0.00% | – |
| Q1 2019 | $3,000 | +50.0% | 271 | +20.4% | 0.00% | – |
| Q4 2018 | $2,000 | -50.0% | 225 | -26.9% | 0.00% | – |
| Q3 2018 | $4,000 | -77.8% | 308 | -38.0% | 0.00% | – |
| Q2 2018 | $18,000 | 0.0% | 497 | 0.0% | 0.00% | – |
| Q1 2018 | $18,000 | -5.3% | 497 | -4.4% | 0.00% | – |
| Q4 2017 | $19,000 | -17.4% | 520 | +47.7% | 0.00% | – |
| Q3 2017 | $23,000 | +9.5% | 352 | -9.7% | 0.00% | – |
| Q2 2017 | $21,000 | -44.7% | 390 | -42.6% | 0.00% | – |
| Q1 2017 | $38,000 | +81.0% | 680 | +55.3% | 0.00% | – |
| Q4 2016 | $21,000 | -19.2% | 438 | +0.5% | 0.00% | – |
| Q3 2016 | $26,000 | +73.3% | 436 | -0.2% | 0.00% | – |
| Q2 2016 | $15,000 | -21.1% | 437 | -2.9% | 0.00% | – |
| Q1 2016 | $19,000 | -32.1% | 450 | +9.2% | 0.00% | -100.0% |
| Q4 2015 | $28,000 | +600.0% | 412 | +373.6% | 0.00% | – |
| Q3 2015 | $4,000 | 0.0% | 87 | 0.0% | 0.00% | – |
| Q2 2015 | $4,000 | +33.3% | 87 | 0.0% | 0.00% | – |
| Q1 2015 | $3,000 | +50.0% | 87 | 0.0% | 0.00% | – |
| Q4 2014 | $2,000 | – | 87 | +8600.0% | 0.00% | – |
| Q3 2014 | $0 | -100.0% | 1 | -98.5% | 0.00% | – |
| Q2 2014 | $1,000 | -50.0% | 65 | 0.0% | 0.00% | – |
| Q1 2014 | $2,000 | 0.0% | 65 | 0.0% | 0.00% | – |
| Q4 2013 | $2,000 | +100.0% | 65 | 0.0% | 0.00% | – |
| Q3 2013 | $1,000 | 0.0% | 65 | 0.0% | 0.00% | – |
| Q2 2013 | $1,000 | – | 65 | – | 0.00% | – |
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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% |