| 19. März 2015 | Marshall Wace LLP | 0,67 % | offen |
| 11. März 2015 | UBS O'Connor Limited | 0,61 % | offen |
| 6. März 2015 | Discovery Capital Management, LLC | 0,47 % | offen |
| 5. März 2015 | Discovery Capital Management, LLC | 0,55 % | offen |
| 4. März 2015 | Marshall Wace LLP | 0,71 % | offen |
| 25. Februar 2015 | UBS Asset Management (UK) LTD | 2,50 % | offen |
| 24. Februar 2015 | UBS Asset Management (UK) LTD | 2,40 % | offen |
| 23. Februar 2015 | UBS Asset Management (UK) LTD | 2,33 % | offen |
| 16. Februar 2015 | UBS Asset Management (UK) LTD | 2,21 % | offen |
| 13. Februar 2015 | UBS Asset Management (UK) LTD | 2,15 % | offen |
| 12. Februar 2015 | UBS Asset Management (UK) LTD | 2,05 % | offen |
| 12. Februar 2015 | Blackrock Investment Management (UK) Limited | 1,56 % | offen |
| 10. Februar 2015 | UBS Asset Management (UK) LTD | 1,95 % | offen |
| 9. Februar 2015 | UBS Asset Management (UK) LTD | 1,65 % | offen |
| 2. Februar 2015 | Bluecrest Capital Management Limited | 0,60 % | offen |
| 27. Januar 2015 | Rubric Capital Management, LLC | 0,90 % | offen |
| 20. Januar 2015 | Bluecrest Capital Management Limited | 0,59 % | offen |
| 15. Januar 2015 | Blackrock Investment Management (UK) Limited | 1,62 % | offen |
| 15. Januar 2015 | Marshall Wace LLP | 0,85 % | offen |
| 14. Januar 2015 | Blackrock Investment Management (UK) Limited | 1,21 % | offen |
| 13. Januar 2015 | Blackrock Investment Management (UK) Limited | 1,04 % | offen |
| 13. Januar 2015 | Bluecrest Capital Management Limited | 0,60 % | offen |
| 7. Januar 2015 | Blackrock Investment Management (UK) Limited | 0,85 % | offen |
| 7. Januar 2015 | Bluecrest Capital Management Limited | 0,51 % | offen |
| 5. Januar 2015 | Blackrock Investment Management (UK) Limited | 0,78 % | offen |
| 2. Januar 2015 | Rubric Capital Management, LLC | 0,81 % | offen |
| 2. Januar 2015 | POINT72 Asset Management, L.P. | 0,00 % | offen |
| 1. Januar 2015 | Bluecrest Capital Management Limited | 0,47 % | offen |
| 30. Dezember 2014 | Oxford Asset Management | 0,49 % | offen |
| 18. Dezember 2014 | Bluecrest Capital Management Limited | 0,50 % | offen |
| 17. Dezember 2014 | Marshall Wace LLP | 0,93 % | offen |
| 16. Dezember 2014 | UBS O'Connor Limited | 0,41 % | offen |
| 15. Dezember 2014 | Marshall Wace LLP | 0,82 % | offen |
| 15. Dezember 2014 | UBS O'Connor Limited | 0,60 % | offen |
| 12. Dezember 2014 | UBS O'Connor Limited | 0,70 % | offen |
| 10. Dezember 2014 | UBS O'Connor Limited | 0,81 % | offen |
| 9. Dezember 2014 | UBS O'Connor Limited | 0,73 % | offen |
| 5. Dezember 2014 | UBS Asset Management (UK) LTD | 1,46 % | offen |
| 4. Dezember 2014 | GAM Investment Management (Switzerland) LTD. - Lugano Branch | 1,33 % | offen |
| 3. Dezember 2014 | UBS Asset Management (UK) LTD | 1,30 % | offen |
| 3. Dezember 2014 | GAM Investment Management (Switzerland) LTD. - Lugano Branch | 1,28 % | offen |
| 2. Dezember 2014 | UBS Asset Management (UK) LTD | 1,23 % | offen |
| 2. Dezember 2014 | GAM Investment Management (Switzerland) LTD. - Lugano Branch | 1,01 % | offen |
| 2. Dezember 2014 | Blackrock Investment Management (UK) Limited | 0,62 % | offen |
| 26. November 2014 | UBS O'Connor Limited | 1,06 % | offen |
| 24. November 2014 | GAM Investment Management (Switzerland) LTD. - Lugano Branch | 0,98 % | offen |
| 21. November 2014 | UBS O'Connor Limited | 0,98 % | offen |
| 21. November 2014 | GAM Investment Management (Switzerland) LTD. - Lugano Branch | 0,83 % | offen |
| 20. November 2014 | UBS O'Connor Limited | 0,88 % | offen |
| 18. November 2014 | POINT72 Asset Management, L.P. | 0,81 % | offen |