| May 27, 2015 | Ennismore Fund Management Limited | 2.11% | still open |
| May 22, 2015 | Ennismore Fund Management Limited | 2.04% | still open |
| May 20, 2015 | UBS O'Connor Limited | 0.20% | still open |
| May 19, 2015 | UBS O'Connor Limited | 0.51% | still open |
| May 4, 2015 | Blackrock Investment Management (UK) Limited | 0.68% | still open |
| April 29, 2015 | UBS O'Connor Limited | 0.68% | still open |
| April 21, 2015 | UBS O'Connor Limited | 0.77% | still open |
| April 15, 2015 | Blackrock Investment Management (UK) Limited | 0.79% | still open |
| April 7, 2015 | Blackrock Investment Management (UK) Limited | 0.89% | still open |
| April 2, 2015 | UBS O'Connor Limited | 0.80% | still open |
| March 20, 2015 | Blackrock Investment Management (UK) Limited | 0.98% | still open |
| March 19, 2015 | Blackrock Institutional Trust Company, National Association | 0.49% | still open |
| March 13, 2015 | Blackrock Investment Management (UK) Limited | 1.08% | still open |
| March 10, 2015 | Blackrock Institutional Trust Company, National Association | 0.58% | still open |
| March 9, 2015 | Blackrock Investment Management (UK) Limited | 1.18% | still open |
| March 6, 2015 | Blackrock Investment Management (UK) Limited | 1.22% | still open |
| March 6, 2015 | UBS O'Connor Limited | 0.71% | still open |
| March 2, 2015 | UBS O'Connor Limited | 0.62% | still open |
| February 19, 2015 | Jpmorgan Asset Management (UK) LTD | 0.59% | still open |
| February 18, 2015 | Ennismore Fund Management Limited | 1.91% | still open |
| January 29, 2015 | Blackrock Investment Management (UK) Limited | 1.10% | still open |
| January 19, 2015 | UBS O'Connor Limited | 0.50% | still open |
| January 15, 2015 | Jpmorgan Asset Management (UK) LTD | 1.00% | still open |
| January 14, 2015 | Blackrock Investment Management (UK) Limited | 1.08% | still open |
| January 8, 2015 | Jpmorgan Asset Management (UK) LTD | 0.89% | still open |
| January 6, 2015 | Blackrock Institutional Trust Company, National Association | 0.60% | still open |
| January 6, 2015 | Jpmorgan Asset Management (UK) LTD | 0.59% | still open |
| December 3, 2014 | Blackrock Investment Management (UK) Limited | 0.60% | still open |
| November 13, 2014 | Blackrock Institutional Trust Company, National Association | 0.50% | still open |
| November 11, 2014 | Blackrock Investment Management (UK) Limited | 0.50% | still open |
| October 31, 2014 | Ennismore Fund Management Limited | 1.75% | still open |
| October 16, 2014 | Ennismore Fund Management Limited | 1.43% | still open |
| October 15, 2014 | Ennismore Fund Management Limited | 1.30% | still open |
| October 14, 2014 | Ennismore Fund Management Limited | 1.22% | still open |
| October 13, 2014 | Ennismore Fund Management Limited | 1.09% | still open |
| August 29, 2014 | Ennismore Fund Management Limited | 0.98% | still open |
| August 25, 2014 | Ennismore Fund Management Limited | 1.00% | still open |
| August 22, 2014 | Ennismore Fund Management Limited | 0.95% | still open |
| August 19, 2014 | Ennismore Fund Management Limited | 0.81% | still open |
| August 15, 2014 | Ennismore Fund Management Limited | 0.72% | still open |
| August 14, 2014 | Ennismore Fund Management Limited | 0.64% | still open |
| July 31, 2014 | Ennismore Fund Management Limited | 0.52% | still open |
| July 21, 2014 | Ennismore Fund Management Limited | 0.46% | still open |
| July 18, 2014 | Ennismore Fund Management Limited | 0.50% | still open |