PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 146 filers reported holding PROTHENA CORP PLC in Q4 2016. The put-call ratio across all filers is 1.16 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $67,454 | -61.0% | 1,398 | -44.9% | 0.00% | -66.7% |
| Q2 2023 | $173,089 | +196592.0% | 2,535 | +40.6% | 0.01% | +100.0% |
| Q1 2023 | $88 | -5.4% | 1,803 | +16.6% | 0.00% | -25.0% |
| Q4 2022 | $93 | -100.0% | 1,546 | -81.4% | 0.00% | -50.0% |
| Q3 2022 | $504,000 | +267.9% | 8,313 | +64.4% | 0.01% | +166.7% |
| Q2 2022 | $137,000 | -54.5% | 5,056 | -38.5% | 0.00% | 0.0% |
| Q1 2022 | $301,000 | +79.2% | 8,223 | +142.1% | 0.00% | 0.0% |
| Q4 2021 | $168,000 | -55.6% | 3,396 | -36.1% | 0.00% | -70.0% |
| Q3 2021 | $378,000 | +256.6% | 5,318 | +157.2% | 0.01% | +233.3% |
| Q2 2021 | $106,000 | +120.8% | 2,068 | +7.3% | 0.00% | +200.0% |
| Q1 2021 | $48,000 | +17.1% | 1,928 | -43.0% | 0.00% | 0.0% |
| Q4 2020 | $41,000 | -67.5% | 3,381 | -73.1% | 0.00% | 0.0% |
| Q3 2020 | $126,000 | +31.2% | 12,558 | +36.5% | 0.00% | -75.0% |
| Q2 2020 | $96,000 | +4700.0% | 9,199 | +3550.4% | 0.00% | – |
| Q3 2019 | $2,000 | -96.4% | 252 | -94.6% | 0.00% | -100.0% |
| Q1 2019 | $56,000 | – | 4,626 | +92420.0% | 0.00% | – |
| Q4 2018 | $0 | -100.0% | 5 | -99.8% | 0.00% | -100.0% |
| Q1 2018 | $96,000 | +336.4% | 2,602 | +349.4% | 0.01% | +166.7% |
| Q4 2017 | $22,000 | -95.5% | 579 | -92.3% | 0.00% | -92.5% |
| Q3 2017 | $490,000 | +8066.7% | 7,565 | +6311.0% | 0.04% | +3900.0% |
| Q2 2017 | $6,000 | -64.7% | 118 | -61.4% | 0.00% | -50.0% |
| Q1 2017 | $17,000 | -45.2% | 306 | -50.4% | 0.00% | -33.3% |
| Q4 2016 | $31,000 | -50.8% | 617 | -41.3% | 0.00% | -50.0% |
| Q3 2016 | $63,000 | +3050.0% | 1,052 | +2046.9% | 0.01% | – |
| Q1 2016 | $2,000 | -85.7% | 49 | -75.5% | 0.00% | -100.0% |
| Q4 2015 | $14,000 | -6.7% | 200 | -40.7% | 0.00% | +100.0% |
| Q3 2015 | $15,000 | -67.4% | 337 | -61.9% | 0.00% | -75.0% |
| Q2 2015 | $46,000 | -62.6% | 885 | -72.4% | 0.00% | -73.3% |
| Q1 2015 | $123,000 | +1018.2% | 3,211 | +493.5% | 0.02% | +1400.0% |
| Q4 2014 | $11,000 | +450.0% | 541 | +567.9% | 0.00% | – |
| Q3 2014 | $2,000 | -96.6% | 81 | -96.9% | 0.00% | -100.0% |
| Q2 2014 | $58,000 | +16.0% | 2,577 | +99.1% | 0.01% | +16.7% |
| Q1 2014 | $50,000 | +455.6% | 1,294 | +269.7% | 0.01% | +200.0% |
| Q4 2013 | $9,000 | -76.9% | 350 | -88.3% | 0.00% | -33.3% |
| Q2 2013 | $39,000 | – | 3,000 | – | 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% |