| July 1, 2019 | Psquared Asset Management AG | 0.00% | still open |
| June 12, 2019 | TIG Advisors, LLC | 0.00% | still open |
| June 11, 2019 | TIG Advisors, LLC | 0.55% | still open |
| June 10, 2019 | TIG Advisors, LLC | 0.55% | still open |
| June 7, 2019 | Blackrock Investment Management (UK) Limited | 0.00% | still open |
| June 5, 2019 | Blackrock Investment Management (UK) Limited | 0.86% | still open |
| June 4, 2019 | Blackrock Investment Management (UK) Limited | 1.13% | still open |
| June 4, 2019 | TIG Advisors, LLC | 0.96% | still open |
| June 3, 2019 | Blackrock Investment Management (UK) Limited | 1.20% | still open |
| June 3, 2019 | TIG Advisors, LLC | 0.96% | still open |
| June 2, 2019 | Blackrock Investment Management (UK) Limited | 1.20% | still open |
| May 31, 2019 | TIG Advisors, LLC | 0.73% | still open |
| May 29, 2019 | TIG Advisors, LLC | 0.64% | still open |
| May 28, 2019 | Blackrock Investment Management (UK) Limited | 1.65% | still open |
| May 27, 2019 | Blackrock Investment Management (UK) Limited | 1.74% | still open |
| May 26, 2019 | Blackrock Investment Management (UK) Limited | 1.74% | still open |
| May 24, 2019 | Blackrock Investment Management (UK) Limited | 1.80% | still open |
| May 23, 2019 | Blackrock Investment Management (UK) Limited | 1.94% | still open |
| May 23, 2019 | Psquared Asset Management AG | 1.27% | still open |
| May 22, 2019 | Blackrock Investment Management (UK) Limited | 2.93% | still open |
| May 22, 2019 | Psquared Asset Management AG | 1.04% | still open |
| May 21, 2019 | Blackrock Investment Management (UK) Limited | 2.93% | still open |
| May 21, 2019 | Psquared Asset Management AG | 1.04% | still open |
| May 16, 2019 | Blackrock Investment Management (UK) Limited | 4.58% | still open |
| May 15, 2019 | Blackrock Investment Management (UK) Limited | 4.35% | still open |
| May 14, 2019 | Blackrock Investment Management (UK) Limited | 4.35% | still open |
| April 3, 2019 | Blackrock Investment Management (UK) Limited | 4.06% | still open |
| April 2, 2019 | Blackrock Investment Management (UK) Limited | 4.06% | still open |
| April 1, 2019 | Blackrock Investment Management (UK) Limited | 3.94% | still open |
| March 31, 2019 | Blackrock Investment Management (UK) Limited | 3.94% | still open |
| March 29, 2019 | Blackrock Investment Management (UK) Limited | 3.82% | still open |
| March 28, 2019 | Blackrock Investment Management (UK) Limited | 3.82% | still open |
| March 18, 2019 | Blackrock Investment Management (UK) Limited | 3.90% | still open |
| March 17, 2019 | Blackrock Investment Management (UK) Limited | 3.90% | still open |
| February 27, 2019 | Blackrock Investment Management (UK) Limited | 3.80% | still open |
| February 26, 2019 | Blackrock Investment Management (UK) Limited | 3.80% | still open |
| February 21, 2019 | Blackrock Investment Management (UK) Limited | 3.79% | still open |
| February 20, 2019 | Blackrock Investment Management (UK) Limited | 3.79% | still open |
| February 14, 2019 | Blackrock Investment Management (UK) Limited | 3.80% | still open |
| February 13, 2019 | Blackrock Investment Management (UK) Limited | 3.60% | still open |
| February 12, 2019 | Blackrock Investment Management (UK) Limited | 3.50% | still open |
| February 11, 2019 | Blackrock Investment Management (UK) Limited | 3.50% | still open |
| February 7, 2019 | Blackrock Investment Management (UK) Limited | 3.40% | still open |
| February 6, 2019 | Blackrock Investment Management (UK) Limited | 3.40% | still open |
| January 18, 2019 | Blackrock Investment Management (UK) Limited | 3.36% | still open |
| January 17, 2019 | Blackrock Investment Management (UK) Limited | 3.36% | still open |
| December 6, 2018 | Blackrock Investment Management (UK) Limited | 3.15% | still open |
| December 5, 2018 | Blackrock Investment Management (UK) Limited | 3.15% | still open |
| November 20, 2018 | Bodenholm Capital AB | 0.00% | still open |
| November 19, 2018 | Blackrock Investment Management (UK) Limited | 3.04% | still open |