PROTHENA CORP PLC's ticker is PRTA and the CUSIP is G72800108. A total of 147 filers reported holding PROTHENA CORP PLC in Q3 2015. The put-call ratio across all filers is 0.61 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2019 | $5,000 | +400.0% | 353 | +33.2% | 0.00% | – |
| Q3 2019 | $1,000 | -50.0% | 265 | +2.3% | 0.00% | – |
| Q2 2019 | $2,000 | -33.3% | 259 | -4.4% | 0.00% | – |
| Q1 2019 | $3,000 | +50.0% | 271 | +20.4% | 0.00% | – |
| Q4 2018 | $2,000 | -50.0% | 225 | -26.9% | 0.00% | – |
| Q3 2018 | $4,000 | -77.8% | 308 | -38.0% | 0.00% | – |
| Q2 2018 | $18,000 | 0.0% | 497 | 0.0% | 0.00% | – |
| Q1 2018 | $18,000 | -5.3% | 497 | -4.4% | 0.00% | – |
| Q4 2017 | $19,000 | -17.4% | 520 | +47.7% | 0.00% | – |
| Q3 2017 | $23,000 | +9.5% | 352 | -9.7% | 0.00% | – |
| Q2 2017 | $21,000 | -44.7% | 390 | -42.6% | 0.00% | – |
| Q1 2017 | $38,000 | +81.0% | 680 | +55.3% | 0.00% | – |
| Q4 2016 | $21,000 | -19.2% | 438 | +0.5% | 0.00% | – |
| Q3 2016 | $26,000 | +73.3% | 436 | -0.2% | 0.00% | – |
| Q2 2016 | $15,000 | -21.1% | 437 | -2.9% | 0.00% | – |
| Q1 2016 | $19,000 | -32.1% | 450 | +9.2% | 0.00% | -100.0% |
| Q4 2015 | $28,000 | +600.0% | 412 | +373.6% | 0.00% | – |
| Q3 2015 | $4,000 | 0.0% | 87 | 0.0% | 0.00% | – |
| Q2 2015 | $4,000 | +33.3% | 87 | 0.0% | 0.00% | – |
| Q1 2015 | $3,000 | +50.0% | 87 | 0.0% | 0.00% | – |
| Q4 2014 | $2,000 | – | 87 | +8600.0% | 0.00% | – |
| Q3 2014 | $0 | -100.0% | 1 | -98.5% | 0.00% | – |
| Q2 2014 | $1,000 | -50.0% | 65 | 0.0% | 0.00% | – |
| Q1 2014 | $2,000 | 0.0% | 65 | 0.0% | 0.00% | – |
| Q4 2013 | $2,000 | +100.0% | 65 | 0.0% | 0.00% | – |
| Q3 2013 | $1,000 | 0.0% | 65 | 0.0% | 0.00% | – |
| Q2 2013 | $1,000 | – | 65 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 9,426,640 | $73,905,000 | 9.33% |
| GREAT POINT PARTNERS LLC | 2,066,041 | $16,198,000 | 1.49% |
| LONESTAR CAPITAL MANAGEMENT LLC | 300,000 | $2,352,000 | 0.78% |
| TANG CAPITAL MANAGEMENT LLC | 423,823 | $3,323,000 | 0.57% |
| Palo Alto Investors LP | 1,004,449 | $7,875,000 | 0.52% |
| Orbimed Advisors | 3,022,117 | $23,693,000 | 0.45% |
| Kerrisdale Advisers, LLC | 61,640 | $483,000 | 0.30% |
| Endurant Capital Management LP | 86,407 | $677,000 | 0.24% |
| Campbell & CO Investment Adviser LLC | 47,901 | $376,000 | 0.14% |
| Boxer Capital, LLC | 79,598 | $624,000 | 0.04% |