PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 138 filers reported holding PROTHENA CORP PLC in Q2 2019. The put-call ratio across all filers is 0.81 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $1,478,000 | +104.7% | 28,733 | -0.0% | 0.05% | +88.5% |
| Q1 2021 | $722,000 | +72100.0% | 28,742 | +68333.3% | 0.03% | – |
| Q4 2020 | $1,000 | – | 42 | 0.0% | 0.00% | – |
| Q3 2020 | $0 | – | 42 | 0.0% | 0.00% | – |
| Q2 2020 | $0 | – | 42 | 0.0% | 0.00% | – |
| Q1 2020 | $0 | -100.0% | 42 | 0.0% | 0.00% | – |
| Q4 2019 | $1,000 | – | 42 | 0.0% | 0.00% | – |
| Q3 2019 | $0 | – | 42 | 0.0% | 0.00% | – |
| Q2 2019 | $0 | -100.0% | 42 | -99.6% | 0.00% | -100.0% |
| Q1 2015 | $427,000 | +84.8% | 11,200 | +0.9% | 0.01% | +62.5% |
| Q4 2014 | $231,000 | -63.4% | 11,100 | -61.1% | 0.01% | -65.2% |
| Q3 2014 | $631,000 | +57.4% | 28,520 | +60.8% | 0.02% | +53.3% |
| Q2 2014 | $401,000 | – | 17,736 | – | 0.02% | – |
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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% |