| June 16, 2015 | Blackrock Investment Management (UK) Limited | 2.90% | still open |
| June 15, 2015 | Blackrock Investment Management (UK) Limited | 2.88% | still open |
| June 12, 2015 | Blackrock Investment Management (UK) Limited | 2.70% | still open |
| June 11, 2015 | Blackrock Investment Management (UK) Limited | 2.61% | still open |
| June 11, 2015 | Jpmorgan Asset Management (UK) LTD | 0.72% | still open |
| June 10, 2015 | Blackrock Investment Management (UK) Limited | 1.99% | still open |
| June 10, 2015 | Ennismore Fund Management Limited | 1.97% | still open |
| June 5, 2015 | Blackrock Investment Management (UK) Limited | 1.70% | still open |
| June 2, 2015 | Ennismore Fund Management Limited | 2.12% | still open |
| May 26, 2015 | Ennismore Fund Management Limited | 2.04% | still open |
| May 19, 2015 | Ennismore Fund Management Limited | 1.81% | still open |
| April 13, 2015 | Blackrock Investment Management (UK) Limited | 1.69% | still open |
| April 1, 2015 | Blackrock Institutional Trust Company, National Association | 0.69% | still open |
| March 27, 2015 | Blackrock Institutional Trust Company, National Association | 0.70% | still open |
| March 23, 2015 | Blackrock Investment Management (UK) Limited | 1.70% | still open |
| March 2, 2015 | Blackrock Investment Management (UK) Limited | 1.67% | still open |
| February 26, 2015 | Blackrock Investment Management (UK) Limited | 1.75% | still open |
| February 24, 2015 | Blackrock Investment Management (UK) Limited | 1.80% | still open |
| February 19, 2015 | Blackrock Investment Management (UK) Limited | 1.79% | still open |
| February 10, 2015 | Blackrock Investment Management (UK) Limited | 1.81% | still open |
| February 5, 2015 | Blackrock Investment Management (UK) Limited | 1.79% | still open |
| January 28, 2015 | Blackrock Investment Management (UK) Limited | 1.82% | still open |
| January 26, 2015 | Blackrock Institutional Trust Company, National Association | 0.69% | still open |
| January 19, 2015 | Blackrock Investment Management (UK) Limited | 1.70% | still open |
| January 14, 2015 | Blackrock Investment Management (UK) Limited | 1.63% | still open |
| January 6, 2015 | Ennismore Fund Management Limited | 1.64% | still open |
| December 30, 2014 | Ennismore Fund Management Limited | 1.50% | still open |
| December 17, 2014 | Ennismore Fund Management Limited | 1.40% | still open |
| December 10, 2014 | Blackrock Investment Management (UK) Limited | 1.17% | still open |
| December 5, 2014 | Blackrock Investment Management (UK) Limited | 1.21% | still open |
| December 3, 2014 | Blackrock Investment Management (UK) Limited | 1.13% | still open |
| October 27, 2014 | Blackrock Investment Management (UK) Limited | 1.09% | still open |
| October 10, 2014 | Blackrock Investment Management (UK) Limited | 1.10% | still open |
| October 10, 2014 | Alphagen Capital Limited | 0.38% | still open |
| October 8, 2014 | Ennismore Fund Management Limited | 1.32% | still open |
| October 1, 2014 | Blackrock Investment Management (UK) Limited | 0.99% | still open |
| September 30, 2014 | Blackrock Investment Management (UK) Limited | 1.14% | still open |
| September 30, 2014 | Alphagen Capital Limited | 0.50% | still open |
| September 25, 2014 | Alphagen Capital Limited | 0.49% | still open |
| September 23, 2014 | Alphagen Capital Limited | 0.67% | still open |
| September 17, 2014 | Alphagen Capital Limited | 0.75% | still open |
| September 16, 2014 | Alphagen Capital Limited | 0.87% | still open |
| September 15, 2014 | Alphagen Capital Limited | 0.90% | still open |
| September 4, 2014 | Alphagen Capital Limited | 0.81% | still open |
| September 2, 2014 | Alphagen Capital Limited | 0.70% | still open |
| August 26, 2014 | Alphagen Capital Limited | 0.66% | still open |
| August 22, 2014 | Blackrock Investment Management (UK) Limited | 1.28% | still open |
| August 19, 2014 | Ennismore Fund Management Limited | 1.26% | still open |
| August 18, 2014 | Ennismore Fund Management Limited | 1.37% | still open |
| August 18, 2014 | Alphagen Capital Limited | 0.51% | still open |