| June 19, 2016 | Millennium International Management LP | 0.80% | still open |
| June 8, 2016 | Millennium International Management LP | 0.70% | still open |
| June 7, 2016 | Millennium International Management LP | 0.70% | still open |
| May 18, 2016 | Millennium International Management LP | 0.61% | still open |
| May 17, 2016 | Millennium International Management LP | 0.61% | still open |
| May 16, 2016 | Millennium International Management LP | 0.56% | still open |
| May 15, 2016 | Millennium International Management LP | 0.56% | still open |
| May 13, 2016 | Millennium International Management LP | 0.60% | still open |
| May 12, 2016 | Millennium International Management LP | 0.60% | still open |
| May 4, 2016 | Millennium International Management LP | 0.59% | still open |
| May 3, 2016 | Millennium International Management LP | 0.59% | still open |
| April 28, 2016 | Marshall Wace LLP | 0.52% | still open |
| April 27, 2016 | Millennium International Management LP | 0.69% | still open |
| April 27, 2016 | Marshall Wace LLP | 0.52% | still open |
| April 26, 2016 | Millennium International Management LP | 0.69% | still open |
| April 20, 2016 | Millennium International Management LP | 0.72% | still open |
| April 19, 2016 | Millennium International Management LP | 0.72% | still open |
| April 4, 2016 | Marshall Wace LLP | 0.53% | still open |
| April 3, 2016 | Marshall Wace LLP | 0.53% | still open |
| March 10, 2016 | Marshall Wace LLP | 0.60% | still open |
| March 9, 2016 | Millennium International Management LP | 0.65% | still open |
| March 9, 2016 | Marshall Wace LLP | 0.60% | still open |
| March 8, 2016 | Millennium International Management LP | 0.65% | still open |
| March 7, 2016 | Millennium International Management LP | 0.75% | still open |
| March 6, 2016 | Millennium International Management LP | 0.75% | still open |
| March 4, 2016 | Marshall Wace LLP | 0.50% | still open |
| March 3, 2016 | Millennium International Management LP | 0.88% | still open |
| March 3, 2016 | Marshall Wace LLP | 0.50% | still open |
| March 2, 2016 | Millennium International Management LP | 0.88% | still open |
| March 1, 2016 | Millennium International Management LP | 0.90% | still open |
| March 1, 2016 | Bridger Management LLC | 0.55% | still open |
| February 29, 2016 | Millennium International Management LP | 0.84% | still open |
| February 29, 2016 | Bridger Management LLC | 0.55% | still open |
| February 28, 2016 | Millennium International Management LP | 0.84% | still open |
| February 26, 2016 | Millennium International Management LP | 0.79% | still open |
| February 25, 2016 | Millennium International Management LP | 0.80% | still open |
| February 24, 2016 | Millennium International Management LP | 0.77% | still open |
| February 23, 2016 | Millennium International Management LP | 0.69% | still open |
| February 22, 2016 | Millennium International Management LP | 0.70% | still open |
| February 21, 2016 | Millennium International Management LP | 0.70% | still open |
| February 9, 2016 | Citadel Advisors LLC | 0.53% | still open |
| February 8, 2016 | Citadel Advisors LLC | 0.53% | still open |
| February 5, 2016 | Millennium International Management LP | 0.61% | still open |
| February 4, 2016 | Citadel Advisors LLC | 0.67% | still open |
| February 4, 2016 | Millennium International Management LP | 0.61% | still open |
| February 3, 2016 | Citadel Advisors LLC | 0.67% | still open |
| January 13, 2016 | Millennium International Management LP | 0.51% | still open |
| January 12, 2016 | Millennium International Management LP | 0.51% | still open |
| December 21, 2015 | Citadel Advisors LLC | 0.77% | still open |
| December 20, 2015 | Citadel Advisors LLC | 0.77% | still open |