| April 22, 2015 | FIL Investments International | 0.51% | still open |
| April 21, 2015 | Blackrock Investment Management (UK) Limited | 0.79% | still open |
| April 17, 2015 | FIL Investment Services (UK) Limited | 2.23% | still open |
| April 16, 2015 | FIL Investment Services (UK) Limited | 2.19% | still open |
| April 15, 2015 | FIL Investment Services (UK) Limited | 1.97% | still open |
| April 14, 2015 | FIL Investment Services (UK) Limited | 1.82% | still open |
| April 10, 2015 | FIL Investment Services (UK) Limited | 1.71% | still open |
| April 9, 2015 | FIL Investment Services (UK) Limited | 1.47% | still open |
| April 8, 2015 | FIL Investment Services (UK) Limited | 1.35% | still open |
| April 2, 2015 | FIL Investment Services (UK) Limited | 1.20% | still open |
| March 26, 2015 | FIL Investment Services (UK) Limited | 1.13% | still open |
| March 24, 2015 | FIL Investment Services (UK) Limited | 0.91% | still open |
| March 6, 2015 | Blackrock Investment Management (UK) Limited | 0.81% | still open |
| February 19, 2015 | Blackrock Investment Management (UK) Limited | 0.70% | still open |
| February 5, 2015 | Polar Capital LLP | 0.83% | still open |
| February 2, 2015 | Blackrock Investment Management (UK) Limited | 0.60% | still open |
| January 30, 2015 | Blackrock Investment Management (UK) Limited | 0.58% | still open |
| January 29, 2015 | Blackrock Investment Management (UK) Limited | 0.60% | still open |
| January 28, 2015 | Blackrock Investment Management (UK) Limited | 0.59% | still open |
| January 27, 2015 | Blackrock Investment Management (UK) Limited | 0.60% | still open |
| January 20, 2015 | Blackrock Investment Management (UK) Limited | 0.59% | still open |
| January 14, 2015 | Blackrock Investment Management (UK) Limited | 0.60% | still open |
| January 7, 2015 | Blackrock Investment Management (UK) Limited | 0.50% | still open |
| November 7, 2014 | Jpmorgan Asset Management (UK) LTD | 0.43% | still open |
| November 6, 2014 | Jpmorgan Asset Management (UK) LTD | 0.72% | still open |
| November 6, 2014 | Blackrock Investment Management (UK) Limited | 0.48% | still open |
| October 20, 2014 | Blackrock Investment Management (UK) Limited | 0.50% | still open |
| September 29, 2014 | Blackrock Investment Management (UK) Limited | 0.49% | still open |
| September 22, 2014 | Blackrock Investment Management (UK) Limited | 0.50% | still open |
| September 4, 2014 | Jpmorgan Asset Management (UK) LTD | 0.90% | still open |
| September 1, 2014 | Blackrock Investment Management (UK) Limited | 0.49% | still open |
| August 27, 2014 | Blackrock Investment Management (UK) Limited | 0.50% | still open |
| August 19, 2014 | Blackrock Investment Management (UK) Limited | 0.48% | still open |
| August 15, 2014 | Blackrock Investment Management (UK) Limited | 0.65% | still open |
| August 13, 2014 | Blackrock Investment Management (UK) Limited | 0.78% | still open |
| August 12, 2014 | Blackrock Investment Management (UK) Limited | 0.81% | still open |
| July 24, 2014 | Jpmorgan Asset Management (UK) LTD | 0.75% | still open |
| July 23, 2014 | Jpmorgan Asset Management (UK) LTD | 0.65% | still open |
| July 22, 2014 | Blackrock Investment Management (UK) Limited | 0.97% | still open |
| July 15, 2014 | Jpmorgan Asset Management (UK) LTD | 0.51% | still open |
| July 14, 2014 | Blackrock Investment Management (UK) Limited | 1.04% | still open |
| July 11, 2014 | Blackrock Investment Management (UK) Limited | 0.97% | still open |
| June 30, 2014 | Blackrock Investment Management (UK) Limited | 0.71% | still open |
| June 19, 2014 | Blackrock Investment Management (UK) Limited | 0.68% | still open |
| June 2, 2014 | Blackrock Investment Management (UK) Limited | 0.77% | still open |
| May 22, 2014 | Blackrock Investment Management (UK) Limited | 0.89% | still open |
| May 2, 2014 | Blackrock Investment Management (UK) Limited | 0.98% | still open |
| April 1, 2014 | Blackrock Investment Management (UK) Limited | 1.08% | still open |
| March 5, 2014 | Blackrock Investment Management (UK) Limited | 1.17% | still open |
| January 6, 2014 | Blackrock Investment Management (UK) Limited | 1.26% | still open |