| 15 december 2014 | Elliott Capital Advisors L.P * | 1,82% | |
| 5 december 2014 | Elliott Capital Advisors L.P * | 1,96% | |
| 3 december 2014 | Logos International Sicav-Fis * | 0,49% | |
| 1 december 2014 | Elliott Capital Advisors L.P * | 1,84% | |
| 26 november 2014 | Cheyne Capital Management (UK) LLP | 0,20% | |
| 25 november 2014 | Cheyne Capital Management (UK) LLP | 0,98% | |
| 25 november 2014 | Logos International Sicav-Fis * | 0,65% | |
| 24 november 2014 | Cheyne Capital Management (UK) LLP | 1,96% | |
| 18 november 2014 | Cheyne Capital Management (UK) LLP | 2,09% | |
| 17 november 2014 | Logos International Sicav-Fis * | 0,60% | |
| 14 november 2014 | Cheyne Capital Management (UK) LLP | 2,14% | |
| 13 november 2014 | Cheyne Capital Management (UK) LLP | 2,00% | |
| 12 november 2014 | Cheyne Capital Management (UK) LLP | 1,81% | |
| 11 november 2014 | Cheyne Capital Management (UK) LLP | 1,67% | |
| 10 november 2014 | Cheyne Capital Management (UK) LLP | 1,42% | |
| 6 november 2014 | Cheyne Capital Management (UK) LLP | 1,28% | |
| 4 november 2014 | Cheyne Capital Management (UK) LLP | 1,14% | |
| 29 oktober 2014 | Marshall Wace LLP | 0,38% | |
| 22 oktober 2014 | Elliott Capital Advisors L.P * | 1,93% | |
| 21 oktober 2014 | Elliott Capital Advisors L.P * | 2,15% | |
| 20 oktober 2014 | Marshall Wace LLP | 0,54% | |
| 14 oktober 2014 | Jericho Capital Asset Management LP | 0,44% | |
| 13 oktober 2014 | Jericho Capital Asset Management LP | 0,53% | |
| 10 oktober 2014 | Jericho Capital Asset Management LP | 0,76% | |
| 8 oktober 2014 | Cheyne Capital Management (UK) LLP | 1,03% | |
| 6 oktober 2014 | Cheyne Capital Management (UK) LLP | 0,93% | |
| 3 oktober 2014 | Cheyne Capital Management (UK) LLP | 0,89% | |
| 2 oktober 2014 | Cheyne Capital Management (UK) LLP | 0,70% | |
| 30 september 2014 | Cheyne Capital Management (UK) LLP | 0,52% | |
| 25 september 2014 | Logos International Sicav-Fis * | 0,27% | |
| 24 september 2014 | Logos International Sicav-Fis * | 0,52% | |
| 23 september 2014 | GAP Gestora de Recursos LTDA * | 0,49% | |
| 22 september 2014 | GAP Gestora de Recursos LTDA * | 0,51% | |
| 16 september 2014 | Jericho Capital Asset Management LP | 0,90% | |
| 15 september 2014 | Elliott Capital Advisors L.P * | 2,82% | |
| 15 september 2014 | Jericho Capital Asset Management LP | 1,05% | |
| 11 september 2014 | Elliott Capital Advisors L.P * | 2,70% | |
| 10 september 2014 | Elliott Capital Advisors L.P * | 2,60% | |
| 8 september 2014 | Elliott Capital Advisors L.P * | 2,50% | |
| 5 september 2014 | Elliott Capital Advisors L.P * | 2,37% | |
| 28 augustus 2014 | Elliott Capital Advisors L.P * | 2,11% | |
| 31 juli 2014 | Hengistbury Investment Partners LLP | 0,48% | |
| 31 juli 2014 | Marshall Wace LLP | 0,34% | |
| 30 juli 2014 | Marshall Wace LLP | 0,51% | |
| 29 juli 2014 | Marshall Wace LLP | 0,61% | |
| 28 juli 2014 | Falcon Edge Capital, LP | 1,13% | |
| 28 juli 2014 | Logos International Sicav-Fis * | 0,62% | |
| 24 juli 2014 | Marshall Wace LLP | 0,78% | |
| 24 juli 2014 | Hengistbury Investment Partners LLP | 0,59% | |
| 23 juli 2014 | BTG Pactual Europe LLP | 0,43% | |