PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 190 filers reported holding PROTHENA CORP PLC in Q3 2023. The put-call ratio across all filers is 1.91 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $409,000 | -26.7% | 8,463 | +3.5% | 0.00% | – |
| Q2 2023 | $558,000 | +18.2% | 8,173 | -16.1% | 0.00% | – |
| Q1 2023 | $472,000 | -37.3% | 9,743 | -22.0% | 0.00% | – |
| Q4 2022 | $753,000 | +61.2% | 12,497 | +62.3% | 0.00% | – |
| Q3 2022 | $467,000 | +34.2% | 7,701 | -40.0% | 0.00% | – |
| Q2 2022 | $348,000 | -11.9% | 12,833 | +18.7% | 0.00% | – |
| Q1 2022 | $395,000 | -47.8% | 10,807 | -29.4% | 0.00% | – |
| Q4 2021 | $756,000 | -18.5% | 15,302 | +17.5% | 0.00% | – |
| Q3 2021 | $928,000 | -68.4% | 13,022 | -77.2% | 0.00% | -100.0% |
| Q2 2021 | $2,936,000 | +1607.0% | 57,112 | +732.5% | 0.00% | – |
| Q1 2021 | $172,000 | +454.8% | 6,860 | +171.0% | 0.00% | – |
| Q4 2020 | $31,000 | +244.4% | 2,531 | +197.1% | 0.00% | – |
| Q3 2020 | $9,000 | +125.0% | 852 | +157.4% | 0.00% | – |
| Q2 2020 | $4,000 | -50.0% | 331 | -55.2% | 0.00% | – |
| Q1 2020 | $8,000 | -85.7% | 739 | -78.9% | 0.00% | – |
| Q4 2019 | $56,000 | +5500.0% | 3,510 | +1287.4% | 0.00% | – |
| Q3 2019 | $1,000 | -92.9% | 253 | -79.7% | 0.00% | – |
| Q2 2019 | $14,000 | -48.1% | 1,247 | -45.2% | 0.00% | – |
| Q1 2019 | $27,000 | +17.4% | 2,274 | 0.0% | 0.00% | – |
| Q4 2018 | $23,000 | -75.0% | 2,274 | -67.9% | 0.00% | – |
| Q3 2018 | $92,000 | +8.2% | 7,084 | +21.3% | 0.00% | – |
| Q2 2018 | $85,000 | -68.4% | 5,842 | -20.4% | 0.00% | – |
| Q1 2018 | $269,000 | -41.1% | 7,337 | -40.0% | 0.00% | – |
| Q4 2017 | $457,000 | -73.7% | 12,225 | -54.5% | 0.00% | -100.0% |
| Q3 2017 | $1,739,000 | +10.0% | 26,864 | -8.1% | 0.00% | 0.0% |
| Q2 2017 | $1,581,000 | -15.5% | 29,222 | -12.9% | 0.00% | 0.0% |
| Q1 2017 | $1,872,000 | +45.2% | 33,560 | +28.0% | 0.00% | 0.0% |
| Q4 2016 | $1,289,000 | -66.6% | 26,215 | -59.3% | 0.00% | -50.0% |
| Q3 2016 | $3,865,000 | +196.4% | 64,458 | +72.8% | 0.00% | +100.0% |
| Q2 2016 | $1,304,000 | -58.3% | 37,292 | -51.0% | 0.00% | -50.0% |
| Q1 2016 | $3,130,000 | -68.0% | 76,058 | -47.1% | 0.00% | -71.4% |
| Q4 2015 | $9,794,000 | +2690.3% | 143,807 | +1757.7% | 0.01% | – |
| Q3 2015 | $351,000 | +68.8% | 7,741 | +95.6% | 0.00% | – |
| Q2 2015 | $208,000 | -70.1% | 3,957 | -78.3% | 0.00% | – |
| Q1 2015 | $695,000 | +1290.0% | 18,208 | +670.5% | 0.00% | – |
| Q4 2014 | $50,000 | +284.6% | 2,363 | +317.5% | 0.00% | – |
| Q3 2014 | $13,000 | -35.0% | 566 | -35.7% | 0.00% | – |
| Q2 2014 | $20,000 | +42.9% | 880 | +143.8% | 0.00% | – |
| Q1 2014 | $14,000 | -95.5% | 361 | -96.9% | 0.00% | – |
| Q4 2013 | $310,000 | +1247.8% | 11,683 | +914.1% | 0.00% | – |
| Q3 2013 | $23,000 | +64.3% | 1,152 | +15.3% | 0.00% | – |
| Q2 2013 | $14,000 | – | 999 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | $558,941,510 | 18.85% |
| Finepoint Capital LP | 349,300 | $16,853,725 | 8.39% |
| Palo Alto Investors LP | 1,657,458 | $79,972,349 | 7.57% |
| Birchview Capital, LP | 169,574 | $8,181,946 | 6.96% |
| First Light Asset Management, LLC | 1,494,039 | $72,087,382 | 6.85% |
| DCF Advisers, LLC | 82,950 | $4,002,338 | 2.18% |
| Prosight Management, LP | 126,202 | $6,089,247 | 1.93% |
| PFM Health Sciences, LP | 836,571 | $40,364,551 | 1.90% |
| SECTORAL ASSET MANAGEMENT INC | 172,407 | $8,318,638 | 1.62% |
| Boxer Capital, LLC | 625,000 | $30,156,250 | 1.60% |