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 | $67,179 | -83.0% | 1,115 | -82.9% | 0.00% | -100.0% |
| Q3 2022 | $395,000 | -57.7% | 6,515 | -81.0% | 0.00% | -66.7% |
| Q2 2022 | $933,000 | -50.9% | 34,377 | -71.4% | 0.00% | -72.7% |
| Q4 2019 | $1,900,000 | +312.1% | 120,000 | +279.6% | 0.01% | +450.0% |
| Q2 2018 | $461,000 | +33.6% | 31,611 | +236.0% | 0.00% | +100.0% |
| Q1 2018 | $345,000 | -88.8% | 9,409 | -93.2% | 0.00% | -95.8% |
| Q3 2014 | $3,086,000 | -22.1% | 139,248 | -20.7% | 0.02% | -46.7% |
| Q2 2014 | $3,960,000 | – | 175,611 | – | 0.04% | – |
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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% |