PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 189 filers reported holding PROTHENA CORP PLC in Q1 2023. The put-call ratio across all filers is 0.56 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $206,356 | -0.8% | 3,425 | 0.0% | 0.00% | 0.0% |
| Q3 2022 | $208,000 | -78.2% | 3,425 | -82.2% | 0.00% | -84.0% |
| Q4 2021 | $953,000 | -55.6% | 19,290 | -36.0% | 0.02% | -35.9% |
| Q3 2021 | $2,148,000 | +38.6% | 30,150 | 0.0% | 0.04% | +39.3% |
| Q2 2021 | $1,550,000 | +115.3% | 30,150 | +5.1% | 0.03% | +133.3% |
| Q1 2021 | $720,000 | +370.6% | 28,680 | +124.8% | 0.01% | +300.0% |
| Q4 2020 | $153,000 | – | 12,760 | – | 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% |