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 2022 | $0 | – | 26 | 0.0% | 0.00% | – |
| Q1 2022 | $0 | -100.0% | 26 | 0.0% | 0.00% | – |
| Q4 2021 | $1,000 | 0.0% | 26 | 0.0% | 0.00% | – |
| Q3 2021 | $1,000 | 0.0% | 26 | 0.0% | 0.00% | – |
| Q2 2021 | $1,000 | 0.0% | 26 | -67.1% | 0.00% | – |
| Q2 2018 | $1,000 | -66.7% | 79 | -4.8% | 0.00% | – |
| Q1 2018 | $3,000 | 0.0% | 83 | 0.0% | 0.00% | – |
| Q4 2017 | $3,000 | -40.0% | 83 | +2.5% | 0.00% | – |
| Q3 2017 | $5,000 | -16.7% | 81 | -30.8% | 0.00% | -100.0% |
| Q2 2017 | $6,000 | 0.0% | 117 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $6,000 | +20.0% | 117 | 0.0% | 0.00% | 0.0% |
| Q4 2016 | $5,000 | -37.5% | 117 | -19.3% | 0.00% | 0.0% |
| Q3 2016 | $8,000 | +60.0% | 145 | 0.0% | 0.00% | 0.0% |
| Q2 2016 | $5,000 | -16.7% | 145 | -8.8% | 0.00% | 0.0% |
| Q1 2016 | $6,000 | – | 159 | – | 0.00% | – |
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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% |