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 2018 | $1,009,000 | -2.0% | 27,485 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $1,030,000 | -27.1% | 27,485 | +26.0% | 0.00% | -50.0% |
| Q3 2017 | $1,413,000 | +19.6% | 21,813 | -0.0% | 0.00% | 0.0% |
| Q2 2017 | $1,181,000 | +56.8% | 21,822 | +61.6% | 0.00% | +100.0% |
| Q1 2017 | $753,000 | +42.9% | 13,503 | +26.0% | 0.00% | 0.0% |
| Q4 2016 | $527,000 | -36.6% | 10,718 | -22.6% | 0.00% | 0.0% |
| Q3 2016 | $831,000 | -1.7% | 13,856 | -27.2% | 0.00% | -50.0% |
| Q2 2016 | $845,000 | -6.4% | 19,040 | -0.2% | 0.00% | 0.0% |
| Q1 2016 | $903,000 | -30.4% | 19,076 | +0.2% | 0.00% | 0.0% |
| Q4 2015 | $1,297,000 | +50.3% | 19,040 | 0.0% | 0.00% | 0.0% |
| Q3 2015 | $863,000 | – | 19,040 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| RA Capital Management | 1,554,918 | $59,569,000 | 4.27% |
| Cormorant Asset Management, LP | 350,000 | $13,409,000 | 3.08% |
| Redmile Group, LLC | 559,611 | $21,439,000 | 2.56% |
| Ghost Tree Capital, LLC | 110,000 | $4,214,000 | 2.50% |
| Atika Capital Management LLC | 57,500 | $2,203,000 | 1.88% |
| Palo Alto Investors LP | 1,065,836 | $40,832,000 | 1.69% |
| Perceptive Advisors | 350,000 | $13,409,000 | 1.41% |
| Orbimed Advisors | 1,889,000 | $72,368,000 | 0.89% |
| Rock Springs Capital Management LP | 65,000 | $2,490,000 | 0.57% |
| Cupps Capital Management, LLC | 164,199 | $6,290,000 | 0.48% |