PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 146 filers reported holding PROTHENA CORP PLC in Q1 2021. The put-call ratio across all filers is 0.25 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $4,463 | +1736.6% | 92,494 | +2501.8% | 0.05% | +2450.0% |
| Q2 2023 | $243 | -95.4% | 3,555 | -96.8% | 0.00% | -96.8% |
| Q1 2023 | $5,303 | +11.7% | 109,401 | +38.9% | 0.06% | +6.9% |
| Q4 2022 | $4,746 | -99.9% | 78,772 | -41.9% | 0.06% | -43.1% |
| Q3 2022 | $8,221,000 | +95.9% | 135,588 | -12.3% | 0.10% | +126.7% |
| Q2 2022 | $4,197,000 | -20.0% | 154,588 | +7.7% | 0.04% | +18.4% |
| Q1 2022 | $5,248,000 | -31.4% | 143,506 | -7.3% | 0.04% | -9.5% |
| Q4 2021 | $7,649,000 | -7.5% | 154,843 | +33.4% | 0.04% | +7.7% |
| Q3 2021 | $8,268,000 | +1505.4% | 116,076 | +1058.4% | 0.04% | +1850.0% |
| Q2 2021 | $515,000 | +94.3% | 10,020 | -4.9% | 0.00% | +100.0% |
| Q1 2021 | $265,000 | +64.6% | 10,540 | -21.2% | 0.00% | 0.0% |
| Q4 2020 | $161,000 | +26.8% | 13,379 | +9.9% | 0.00% | 0.0% |
| Q2 2020 | $127,000 | -28.2% | 12,178 | -26.3% | 0.00% | -50.0% |
| Q1 2020 | $177,000 | +22.1% | 16,533 | +81.0% | 0.00% | +100.0% |
| Q4 2019 | $145,000 | +27.2% | 9,134 | -2.5% | 0.00% | 0.0% |
| Q1 2019 | $114,000 | +11.8% | 9,364 | +33.6% | 0.00% | 0.0% |
| Q2 2018 | $102,000 | -53.8% | 7,010 | +16.5% | 0.00% | -50.0% |
| Q1 2018 | $221,000 | +25.6% | 6,019 | +27.9% | 0.00% | 0.0% |
| Q4 2017 | $176,000 | -60.9% | 4,707 | -32.2% | 0.00% | -50.0% |
| Q3 2017 | $450,000 | +104.5% | 6,942 | +70.8% | 0.00% | +100.0% |
| Q2 2017 | $220,000 | +12.8% | 4,064 | +16.2% | 0.00% | 0.0% |
| Q1 2017 | $195,000 | -45.2% | 3,496 | -51.7% | 0.00% | -33.3% |
| Q4 2016 | $356,000 | -33.5% | 7,245 | -18.9% | 0.00% | -50.0% |
| Q3 2016 | $535,000 | +382.0% | 8,928 | +182.2% | 0.01% | +500.0% |
| Q2 2016 | $111,000 | -66.8% | 3,164 | -61.0% | 0.00% | -50.0% |
| Q1 2016 | $334,000 | -7.2% | 8,123 | +53.8% | 0.00% | -33.3% |
| Q4 2015 | $360,000 | +4.3% | 5,280 | -30.7% | 0.00% | +50.0% |
| Q3 2015 | $345,000 | -75.1% | 7,615 | -71.0% | 0.00% | -77.8% |
| Q2 2015 | $1,385,000 | +82.5% | 26,297 | +32.1% | 0.01% | +80.0% |
| Q1 2015 | $759,000 | +55.9% | 19,910 | -15.0% | 0.01% | +150.0% |
| Q4 2014 | $487,000 | +193.4% | 23,435 | +212.7% | 0.00% | +100.0% |
| Q3 2014 | $166,000 | -14.9% | 7,495 | -13.4% | 0.00% | 0.0% |
| Q2 2014 | $195,000 | -18.8% | 8,654 | +38.2% | 0.00% | 0.0% |
| Q1 2014 | $240,000 | +120.2% | 6,264 | +16.3% | 0.00% | – |
| Q3 2013 | $109,000 | – | 5,386 | – | 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% |