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 | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $7,567,530 | -7.3% | 156,840 | +31.2% | 0.04% | -4.3% |
| Q2 2023 | $8,164,786 | +18.9% | 119,578 | -15.6% | 0.05% | -2.1% |
| Q1 2023 | $6,867,666 | -17.6% | 141,689 | +2.4% | 0.05% | -32.9% |
| Q4 2022 | $8,335,768 | +28.9% | 138,353 | +29.7% | 0.07% | +1.4% |
| Q3 2022 | $6,467,000 | +192.4% | 106,666 | +30.9% | 0.07% | +245.0% |
| Q2 2022 | $2,212,000 | -57.9% | 81,472 | -43.2% | 0.02% | -35.5% |
| Q1 2022 | $5,250,000 | -11.9% | 143,547 | +19.0% | 0.03% | 0.0% |
| Q4 2021 | $5,961,000 | +105.1% | 120,668 | +195.8% | 0.03% | +55.0% |
| Q3 2021 | $2,906,000 | +65.4% | 40,797 | +19.4% | 0.02% | +81.8% |
| Q2 2021 | $1,757,000 | +70.3% | 34,176 | -16.8% | 0.01% | +57.1% |
| Q1 2021 | $1,032,000 | +348.7% | 41,078 | +78.5% | 0.01% | +133.3% |
| Q3 2020 | $230,000 | +91.7% | 23,019 | +99.9% | 0.00% | +50.0% |
| Q2 2020 | $120,000 | -39.4% | 11,517 | -7.7% | 0.00% | -33.3% |
| Q4 2019 | $198,000 | -35.1% | 12,482 | -68.0% | 0.00% | -40.0% |
| Q3 2019 | $305,000 | -40.7% | 38,948 | -20.0% | 0.01% | -44.4% |
| Q2 2019 | $514,000 | -22.8% | 48,656 | -11.3% | 0.01% | -18.2% |
| Q1 2019 | $666,000 | – | 54,881 | – | 0.01% | – |
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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% |