PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 190 filers reported holding PROTHENA CORP PLC in Q3 2023. The put-call ratio across all filers is 1.91 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2022 | $0 | -100.0% | 16 | 0.0% | 0.00% | – |
| Q1 2022 | $1,000 | 0.0% | 16 | 0.0% | 0.00% | – |
| Q4 2021 | $1,000 | -97.3% | 16 | -97.0% | 0.00% | -100.0% |
| Q3 2021 | $37,681 | +38.6% | 529 | 0.0% | 0.00% | +100.0% |
| Q2 2021 | $27,196 | +104.7% | 529 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $13,288 | +3718.4% | 529 | +1724.1% | 0.00% | – |
| Q4 2020 | $348 | +20.0% | 29 | 0.0% | 0.00% | – |
| Q3 2020 | $290 | -97.4% | 29 | -97.3% | 0.00% | -100.0% |
| Q2 2020 | $11,140 | -3.1% | 1,065 | -0.8% | 0.00% | 0.0% |
| Q1 2020 | $11,492 | -42.8% | 1,074 | -15.4% | 0.00% | -50.0% |
| Q4 2019 | $20,088 | +101.9% | 1,269 | 0.0% | 0.00% | +100.0% |
| Q3 2019 | $9,949 | -25.8% | 1,269 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $13,413 | -12.9% | 1,269 | 0.0% | 0.00% | -50.0% |
| Q1 2019 | $15,393 | +17.8% | 1,269 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $13,071 | -21.3% | 1,269 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $16,599 | -10.3% | 1,269 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $18,502 | +51.4% | 1,269 | +281.1% | 0.00% | +100.0% |
| Q1 2018 | $12,224 | +39.9% | 333 | +42.9% | 0.00% | 0.0% |
| Q4 2017 | $8,735 | -59.5% | 233 | -30.0% | 0.00% | -66.7% |
| Q3 2017 | $21,568 | – | 333 | – | 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% |