| February 8, 2018 | Anchorage Capital Master Offshore, LTD. | 0.76% | February 23, 2018 |
| February 6, 2018 | Anchorage Capital Master Offshore, LTD. | 0.99% | February 23, 2018 |
| February 5, 2018 | Anchorage Capital Master Offshore, LTD. | 1.13% | February 23, 2018 |
| November 8, 2017 | Blackrock Investment Management (UK) Limited | 0.31% | November 10, 2017 |
| October 19, 2017 | Blackrock Investment Management (UK) Limited | 0.55% | November 10, 2017 |
| October 13, 2017 | Blackrock Investment Management (UK) Limited | 1.07% | November 10, 2017 |
| October 12, 2017 | Blackrock Investment Management (UK) Limited | 1.20% | November 10, 2017 |
| October 5, 2017 | Blackrock Investment Management (UK) Limited | 1.38% | November 10, 2017 |
| October 2, 2017 | Blackrock Investment Management (UK) Limited | 1.44% | November 10, 2017 |
| September 27, 2017 | Blackrock Investment Management (UK) Limited | 1.57% | November 10, 2017 |
| September 25, 2017 | Blackrock Investment Management (UK) Limited | 1.66% | November 10, 2017 |
| September 8, 2017 | Blackrock Investment Management (UK) Limited | 1.78% | November 10, 2017 |
| August 16, 2017 | Blackrock Investment Management (UK) Limited | 1.89% | November 10, 2017 |
| July 27, 2017 | Blackrock Investment Management (UK) Limited | 1.98% | November 10, 2017 |
| March 1, 2017 | Blackrock Investment Management (UK) Limited | 2.00% | November 10, 2017 |
| February 14, 2017 | Anchorage Capital Master Offshore, LTD. | 1.24% | February 23, 2018 |
| February 10, 2017 | Anchorage Capital Master Offshore, LTD. | 1.13% | February 23, 2018 |
| November 16, 2016 | Anchorage Capital Master Offshore, LTD. | 1.07% | February 23, 2018 |
| November 15, 2016 | Blackrock Investment Management (UK) Limited | 1.99% | November 10, 2017 |
| November 15, 2016 | Anchorage Capital Master Offshore, LTD. | 0.85% | February 23, 2018 |
| November 14, 2016 | Blackrock Investment Management (UK) Limited | 2.10% | November 10, 2017 |
| November 14, 2016 | Anchorage Capital Master Offshore, LTD. | 0.61% | February 23, 2018 |
| November 11, 2016 | Blackrock Investment Management (UK) Limited | 2.25% | November 10, 2017 |
| November 7, 2016 | Blackrock Investment Management (UK) Limited | 2.39% | November 10, 2017 |
| October 27, 2016 | Blackrock Investment Management (UK) Limited | 2.49% | November 10, 2017 |
| October 20, 2016 | Blackrock Investment Management (UK) Limited | 2.59% | November 10, 2017 |
| October 3, 2016 | Blackrock Investment Management (UK) Limited | 2.66% | November 10, 2017 |
| September 28, 2016 | Blackrock Investment Management (UK) Limited | 2.70% | November 10, 2017 |
| September 27, 2016 | Blackrock Investment Management (UK) Limited | 2.69% | November 10, 2017 |
| July 29, 2016 | Blackrock Investment Management (UK) Limited | 2.77% | November 10, 2017 |
| July 26, 2016 | Blackrock Investment Management (UK) Limited | 2.83% | November 10, 2017 |
| July 22, 2016 | Blackrock Investment Management (UK) Limited | 2.90% | November 10, 2017 |
| July 14, 2016 | Blackrock Investment Management (UK) Limited | 2.89% | November 10, 2017 |
| July 5, 2016 | Blackrock Investment Management (UK) Limited | 2.95% | November 10, 2017 |
| July 4, 2016 | Blackrock Investment Management (UK) Limited | 2.89% | November 10, 2017 |
| June 6, 2016 | Blackrock Investment Management (UK) Limited | 2.91% | November 10, 2017 |
| June 3, 2016 | Blackrock Investment Management (UK) Limited | 2.72% | November 10, 2017 |
| June 2, 2016 | Blackrock Investment Management (UK) Limited | 2.66% | November 10, 2017 |
| June 1, 2016 | Blackrock Investment Management (UK) Limited | 2.59% | November 10, 2017 |
| May 26, 2016 | Blackrock Investment Management (UK) Limited | 2.60% | November 10, 2017 |
| April 25, 2016 | Blackrock Investment Management (UK) Limited | 2.54% | November 10, 2017 |
| April 14, 2016 | Blackrock Investment Management (UK) Limited | 2.69% | November 10, 2017 |
| April 12, 2016 | Blackrock Investment Management (UK) Limited | 2.52% | November 10, 2017 |
| April 5, 2016 | Blackrock Investment Management (UK) Limited | 2.40% | November 10, 2017 |
| March 30, 2016 | Blackrock Investment Management (UK) Limited | 2.31% | November 10, 2017 |
| March 18, 2016 | Blackrock Investment Management (UK) Limited | 2.23% | November 10, 2017 |
| March 14, 2016 | Blackrock Investment Management (UK) Limited | 2.12% | November 10, 2017 |
| February 8, 2016 | Blackrock Investment Management (UK) Limited | 2.01% | November 10, 2017 |
| January 29, 2016 | Blackrock Investment Management (UK) Limited | 1.90% | November 10, 2017 |
| January 26, 2016 | Blackrock Investment Management (UK) Limited | 1.71% | November 10, 2017 |