PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 193 filers reported holding PROTHENA CORP PLC in Q3 2021. The put-call ratio across all filers is 0.62 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $6,657,300 | +182.7% | 97,500 | +100.7% | 0.67% | +91.4% |
| Q1 2023 | $2,354,575 | -57.1% | 48,578 | -46.7% | 0.35% | -55.9% |
| Q4 2022 | $5,493,475 | -65.7% | 91,178 | -59.4% | 0.79% | -17.0% |
| Q3 2021 | $15,999,000 | +33.0% | 224,600 | -4.0% | 0.95% | +0.5% |
| Q2 2021 | $12,030,000 | +2573.3% | 234,000 | +1206.8% | 0.95% | +2328.2% |
| Q1 2021 | $450,000 | -55.9% | 17,906 | +19.4% | 0.04% | -92.6% |
| Q4 2015 | $1,021,000 | -53.7% | 15,000 | -73.9% | 0.53% | -71.9% |
| Q1 2014 | $2,203,000 | +121.4% | 57,500 | +53.3% | 1.88% | +111.9% |
| Q4 2013 | $995,000 | – | 37,500 | – | 0.88% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Woodford Investment Management Ltd | 10,304,751 | $360,254,000 | 16.93% |
| Palo Alto Investors LP | 788,618 | $27,570,000 | 2.08% |
| Redmile Group, LLC | 487,406 | $17,040,000 | 1.63% |
| TURNER INVESTMENTS LLC | 78,870 | $2,757,000 | 0.86% |
| Rock Springs Capital Management LP | 308,000 | $10,768,000 | 0.80% |
| SECTORAL ASSET MANAGEMENT INC | 174,746 | $6,109,000 | 0.63% |
| BB BIOTECH AG | 350,000 | $12,236,000 | 0.48% |
| MARINER INVESTMENT GROUP LLC | 33,104 | $1,157,000 | 0.39% |
| PINNACLE ASSOCIATES LTD | 436,417 | $15,257,000 | 0.33% |
| OAK RIDGE INVESTMENTS LLC | 364,250 | $12,734,000 | 0.33% |