| May 10, 2016 | BlackRock Investment Management (UK) Limited | 0.69% | still open |
| April 27, 2016 | BlackRock Investment Management (UK) Limited | 0.70% | still open |
| April 26, 2016 | BlackRock Investment Management (UK) Limited | 0.70% | still open |
| April 4, 2016 | BlackRock Investment Management (UK) Limited | 0.64% | still open |
| April 3, 2016 | BlackRock Investment Management (UK) Limited | 0.64% | still open |
| March 31, 2016 | BlackRock Investment Management (UK) Limited | 0.63% | still open |
| March 30, 2016 | BlackRock Investment Management (UK) Limited | 0.63% | still open |
| February 19, 2016 | BlackRock Investment Management (UK) Limited | 0.56% | still open |
| February 18, 2016 | BlackRock Investment Management (UK) Limited | 0.56% | still open |
| February 8, 2016 | BlackRock Investment Management (UK) Limited | 0.62% | still open |
| February 7, 2016 | BlackRock Investment Management (UK) Limited | 0.62% | still open |
| February 4, 2016 | BlackRock Investment Management (UK) Limited | 0.59% | still open |
| February 3, 2016 | BlackRock Investment Management (UK) Limited | 0.59% | still open |
| January 27, 2016 | BlackRock Investment Management (UK) Limited | 0.79% | still open |
| January 26, 2016 | BlackRock Investment Management (UK) Limited | 0.79% | still open |
| January 22, 2016 | BlackRock Investment Management (UK) Limited | 0.83% | still open |
| January 21, 2016 | BlackRock Investment Management (UK) Limited | 0.83% | still open |
| December 23, 2015 | BlackRock Investment Management (UK) Limited | 0.91% | still open |
| December 22, 2015 | BlackRock Investment Management (UK) Limited | 0.91% | still open |
| December 15, 2015 | BlackRock Investment Management (UK) Limited | 0.82% | still open |
| December 14, 2015 | BlackRock Investment Management (UK) Limited | 0.82% | still open |
| December 1, 2015 | BlackRock Investment Management (UK) Limited | 0.71% | still open |
| November 30, 2015 | BlackRock Investment Management (UK) Limited | 0.71% | still open |
| November 19, 2015 | BlackRock Investment Management (UK) Limited | 0.61% | still open |
| November 18, 2015 | BlackRock Investment Management (UK) Limited | 0.61% | still open |
| November 12, 2015 | BlackRock Investment Management (UK) Limited | 0.52% | still open |
| November 11, 2015 | BlackRock Investment Management (UK) Limited | 0.52% | still open |
| February 13, 2014 | Luxor Capital Group LP | 0.53% | still open |
| February 12, 2014 | Luxor Capital Group LP | 0.53% | still open |
| January 31, 2014 | Amber Capital UK LLP | 0.50% | still open |
| January 30, 2014 | Amber Capital UK LLP | 0.50% | still open |
| January 7, 2014 | Luxor Capital Group LP | 0.60% | still open |
| January 6, 2014 | Luxor Capital Group LP | 0.60% | still open |
| December 17, 2013 | Luxor Capital Group LP | 0.52% | still open |
| December 16, 2013 | Luxor Capital Group LP | 0.52% | still open |
| October 3, 2013 | Luxor Capital Group LP | 0.56% | still open |
| October 2, 2013 | Luxor Capital Group LP | 0.56% | still open |
| October 1, 2013 | Luxor Capital Group LP | 0.69% | still open |
| September 30, 2013 | Luxor Capital Group LP | 0.69% | still open |
| September 10, 2013 | Luxor Capital Group LP | 0.79% | still open |
| September 9, 2013 | Luxor Capital Group LP | 0.79% | still open |
| September 6, 2013 | Luxor Capital Group LP | 0.81% | still open |
| September 5, 2013 | Luxor Capital Group LP | 0.81% | still open |
| July 26, 2013 | Luxor Capital Group LP | 0.74% | still open |
| July 25, 2013 | Luxor Capital Group LP | 0.74% | still open |
| July 24, 2013 | Luxor Capital Group LP | 0.89% | still open |
| July 23, 2013 | Luxor Capital Group LP | 0.89% | still open |
| July 9, 2013 | Luxor Capital Group LP | 0.95% | still open |
| July 8, 2013 | Luxor Capital Group LP | 0.95% | still open |
| July 4, 2013 | Luxor Capital Group LP | 1.07% | still open |