| 19 april 2016 | UBS Asset Management (UK) LTD | 0,50% | 15 juni 2016 |
| 23 oktober 2015 | Glenhill Capital Overseas Master Fund, LP | 0,95% | 12 september 2016 |
| 31 juli 2015 | GAM Investment Management Lugano SA | 0,51% | 3 augustus 2015 |
| 30 juli 2015 | GAM Investment Management Lugano SA | 0,61% | 31 juli 2015 |
| 29 juli 2015 | GAM Investment Management Lugano SA | 0,73% | 30 juli 2015 |
| 28 juli 2015 | GAM Investment Management Lugano SA | 0,83% | 29 juli 2015 |
| 2 juni 2015 | Pictet Asset Management SA | 0,57% | 4 juni 2015 |
| 8 mei 2015 | Pictet Asset Management SA | 0,64% | 2 juni 2015 |
| 7 mei 2015 | Pictet Asset Management SA | 0,59% | 8 mei 2015 |
| 24 april 2015 | Pictet Asset Management SA | 0,62% | 7 mei 2015 |
| 23 april 2015 | Pictet Asset Management SA | 0,51% | 24 april 2015 |
| 22 april 2015 | GAM Investment Management Lugano SA | 0,93% | 28 juli 2015 |
| 21 april 2015 | GAM Investment Management Lugano SA | 0,72% | 22 april 2015 |
| 20 april 2015 | Glenhill Capital Overseas Master Fund, LP | 0,79% | 23 oktober 2015 |
| 14 april 2015 | Glenhill Capital Overseas Master Fund, LP | 1,34% | 20 april 2015 |
| 8 april 2015 | Glenhill Capital Overseas Master Fund, LP | 1,28% | 14 april 2015 |
| 2 april 2015 | Glenhill Capital Overseas Master Fund, LP | 1,16% | 8 april 2015 |
| 1 april 2015 | Glenhill Capital Overseas Master Fund, LP | 0,66% | 2 april 2015 |
| 30 maart 2015 | Glenhill Capital Overseas Master Fund, LP | 0,58% | 1 april 2015 |
| 9 december 2014 | UBS Global Asset Management UK LTD | 0,64% | 11 december 2014 |
| 5 november 2014 | UBS Global Asset Management UK LTD | 0,70% | 9 december 2014 |
| 15 augustus 2014 | UBS Global Asset Management UK LTD | 0,69% | 5 november 2014 |
| 6 augustus 2014 | UBS Global Asset Management UK LTD | 0,79% | 15 augustus 2014 |
| 2 juli 2014 | UBS Global Asset Management UK LTD | 0,80% | 6 augustus 2014 |
| 9 juni 2014 | UBS Global Asset Management UK LTD | 0,74% | 2 juli 2014 |
| 5 juni 2014 | Bluecrest Capital Management LLP | 0,58% | 19 juni 2014 |
| 30 mei 2014 | UBS Global Asset Management UK LTD | 0,60% | 9 juni 2014 |
| 12 mei 2014 | UBS Global Asset Management UK LTD | 0,55% | 30 mei 2014 |
| 9 april 2014 | Bluecrest Capital Management LLP | 0,67% | 5 juni 2014 |
| 19 maart 2014 | Bluecrest Capital Management LLP | 0,70% | 9 april 2014 |
| 12 maart 2014 | Bluecrest Capital Management LLP | 0,60% | 19 maart 2014 |
| 6 maart 2014 | Bluecrest Capital Management LLP | 0,51% | 12 maart 2014 |
| 15 oktober 2013 | Bluecrest Capital Management LLP | 0,50% | 22 oktober 2013 |
| 12 augustus 2013 | Jpmorgan Asset Management (UK) LTD | 0,52% | 16 augustus 2013 |
| 22 juli 2013 | Jpmorgan Asset Management (UK) LTD | 0,66% | 12 augustus 2013 |
| 7 november 2012 | Sunrise Partners Limited Partnership | 0,53% | 8 november 2012 |