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 | $215,700 | -89.1% | 3,159 | -92.3% | 0.00% | -91.7% |
| Q1 2023 | $1,982,423 | -19.2% | 40,900 | +0.4% | 0.01% | -14.3% |
| Q4 2022 | $2,453,320 | +128.4% | 40,719 | +129.8% | 0.01% | +133.3% |
| Q3 2022 | $1,074,000 | +214.0% | 17,720 | +40.9% | 0.01% | +200.0% |
| Q2 2022 | $342,000 | +12.9% | 12,580 | +52.0% | 0.00% | -33.3% |
| Q1 2022 | $303,000 | -85.6% | 8,274 | -80.6% | 0.00% | -85.0% |
| Q4 2021 | $2,105,000 | -30.1% | 42,605 | +0.8% | 0.02% | -47.4% |
| Q3 2021 | $3,010,000 | +112.7% | 42,262 | +53.5% | 0.04% | +137.5% |
| Q2 2021 | $1,415,000 | +226.8% | 27,530 | +59.9% | 0.02% | +166.7% |
| Q1 2021 | $433,000 | +84.3% | 17,221 | -26.8% | 0.01% | +100.0% |
| Q3 2020 | $235,000 | +89.5% | 23,519 | +97.9% | 0.00% | +50.0% |
| Q2 2020 | $124,000 | +65.3% | 11,886 | +69.3% | 0.00% | 0.0% |
| Q1 2020 | $75,000 | -67.9% | 7,019 | -52.5% | 0.00% | -50.0% |
| Q4 2019 | $234,000 | +105.3% | 14,776 | +1.2% | 0.00% | +100.0% |
| Q3 2019 | $114,000 | -76.4% | 14,604 | -68.1% | 0.00% | -77.8% |
| Q2 2019 | $484,000 | +183.0% | 45,753 | +224.8% | 0.01% | +50.0% |
| Q1 2019 | $171,000 | +48.7% | 14,088 | +25.8% | 0.01% | +20.0% |
| Q4 2018 | $115,000 | -59.9% | 11,198 | +111.1% | 0.01% | -72.2% |
| Q2 2017 | $287,000 | -15.3% | 5,305 | +6.6% | 0.02% | -10.0% |
| Q4 2015 | $339,000 | +334.6% | 4,978 | +188.9% | 0.02% | +400.0% |
| Q3 2015 | $78,000 | +25.8% | 1,723 | +46.4% | 0.00% | +33.3% |
| Q2 2015 | $62,000 | – | 1,177 | – | 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% |