| September 1, 2016 | Millennium International Management LP | 0.49% | still open |
| August 30, 2016 | AQR Capital Management, LLC | 1.03% | still open |
| August 30, 2016 | Millennium International Management LP | 0.58% | still open |
| August 24, 2016 | Millennium International Management LP | 0.67% | still open |
| August 23, 2016 | Millennium International Management LP | 0.59% | still open |
| August 22, 2016 | Millennium International Management LP | 0.60% | still open |
| August 19, 2016 | Millennium International Management LP | 0.59% | still open |
| August 12, 2016 | AQR Capital Management, LLC | 0.90% | still open |
| August 11, 2016 | Millennium International Management LP | 0.60% | still open |
| August 10, 2016 | KEY Group Holdings (cayman), LTD. | 0.89% | still open |
| July 22, 2016 | AQR Capital Management, LLC | 0.80% | still open |
| July 19, 2016 | KEY Group Holdings (cayman), LTD. | 0.91% | still open |
| July 11, 2016 | AQR Capital Management, LLC | 0.70% | still open |
| July 8, 2016 | Millennium International Management LP | 0.52% | still open |
| July 7, 2016 | AQR Capital Management, LLC | 0.68% | still open |
| July 6, 2016 | Blackrock Investment Management (UK) Limited | 0.65% | still open |
| June 29, 2016 | AQR Capital Management, LLC | 0.71% | still open |
| June 28, 2016 | KEY Group Holdings (cayman), LTD. | 0.80% | still open |
| June 28, 2016 | AQR Capital Management, LLC | 0.69% | still open |
| June 24, 2016 | Millennium International Management LP | 0.48% | still open |
| June 20, 2016 | Millennium International Management LP | 0.50% | still open |
| June 17, 2016 | KEY Group Holdings (cayman), LTD. | 0.70% | still open |
| June 15, 2016 | Millennium International Management LP | 0.44% | still open |
| June 14, 2016 | Blackrock Investment Management (UK) Limited | 0.71% | still open |
| June 14, 2016 | Millennium International Management LP | 0.51% | still open |
| June 6, 2016 | Blackrock Investment Management (UK) Limited | 0.62% | still open |
| June 1, 2016 | Blackrock Investment Management (UK) Limited | 0.53% | still open |
| May 13, 2016 | KEY Group Holdings (cayman), LTD. | 1.32% | still open |
| May 9, 2016 | AQR Capital Management, LLC | 0.60% | still open |
| May 9, 2016 | Millennium International Management LP | 0.49% | still open |
| May 6, 2016 | Millennium International Management LP | 0.50% | still open |
| May 5, 2016 | Millennium International Management LP | 0.47% | still open |
| April 29, 2016 | Blackrock Investment Management (UK) Limited | 0.48% | still open |
| April 28, 2016 | Blackrock Investment Management (UK) Limited | 0.57% | still open |
| April 26, 2016 | Blackrock Investment Management (UK) Limited | 0.66% | still open |
| April 20, 2016 | Blackrock Investment Management (UK) Limited | 0.73% | still open |
| April 20, 2016 | Millennium International Management LP | 0.59% | still open |
| April 14, 2016 | KEY Group Holdings (cayman), LTD. | 1.29% | still open |
| April 14, 2016 | Marshall Wace LLP | 0.42% | still open |
| April 12, 2016 | Millennium International Management LP | 0.69% | still open |
| April 11, 2016 | Millennium International Management LP | 0.70% | still open |
| April 8, 2016 | Millennium International Management LP | 0.68% | still open |
| April 7, 2016 | Millennium International Management LP | 0.70% | still open |
| April 7, 2016 | AQR Capital Management, LLC | 0.59% | still open |
| April 6, 2016 | Millennium International Management LP | 0.62% | still open |
| April 5, 2016 | Millennium International Management LP | 0.54% | still open |
| April 4, 2016 | KEY Group Holdings (cayman), LTD. | 1.30% | still open |
| April 4, 2016 | Blackrock Investment Management (UK) Limited | 0.88% | still open |
| March 31, 2016 | KEY Group Holdings (cayman), LTD. | 1.23% | still open |
| March 30, 2016 | Blackrock Investment Management (UK) Limited | 0.92% | still open |