PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 196 filers reported holding PROTHENA CORP PLC in Q4 2021. The put-call ratio across all filers is 0.55 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $328,100 | -69.6% | 6,800 | -57.0% | 0.00% | -50.0% |
| Q2 2023 | $1,078,824 | +345.2% | 15,800 | +216.0% | 0.00% | – |
| Q1 2023 | $242,350 | -35.7% | 5,000 | -64.0% | 0.00% | – |
| Q2 2022 | $377,000 | -37.9% | 13,895 | -16.3% | 0.00% | – |
| Q1 2022 | $607,000 | -25.5% | 16,595 | 0.0% | 0.00% | -100.0% |
| Q4 2021 | $815,000 | +331.2% | 16,595 | -6.3% | 0.00% | – |
| Q1 2020 | $189,000 | -55.5% | 17,708 | +169.9% | 0.00% | – |
| Q3 2017 | $425,000 | +19.7% | 6,560 | 0.0% | 0.00% | – |
| Q2 2017 | $355,000 | -15.9% | 6,560 | -13.2% | 0.00% | – |
| Q1 2017 | $422,000 | -11.0% | 7,557 | -21.5% | 0.00% | – |
| Q4 2016 | $474,000 | -74.8% | 9,628 | -69.3% | 0.00% | -100.0% |
| Q3 2016 | $1,880,000 | +71.2% | 31,343 | -0.2% | 0.00% | +100.0% |
| Q2 2016 | $1,098,000 | -53.5% | 31,398 | -45.3% | 0.00% | -66.7% |
| Q1 2016 | $2,362,000 | -39.1% | 57,392 | +0.8% | 0.00% | -25.0% |
| Q4 2015 | $3,878,000 | +54.4% | 56,943 | +2.8% | 0.00% | +33.3% |
| Q3 2015 | $2,512,000 | – | 55,404 | – | 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% |