| February 24, 2015 | Millennium International Management LP | 2.85% | still open |
| February 20, 2015 | Millennium International Management LP | 2.78% | still open |
| February 12, 2015 | Millennium International Management LP | 2.60% | still open |
| February 11, 2015 | Millennium International Management LP | 2.56% | still open |
| February 6, 2015 | Millennium International Management LP | 2.68% | still open |
| February 5, 2015 | Millennium International Management LP | 2.44% | still open |
| February 4, 2015 | Millennium International Management LP | 2.31% | still open |
| February 3, 2015 | Millennium International Management LP | 2.25% | still open |
| February 2, 2015 | Millennium International Management LP | 2.45% | still open |
| February 2, 2015 | King Street Capital Management, L.P. | 0.45% | still open |
| January 30, 2015 | Millennium International Management LP | 2.55% | still open |
| January 29, 2015 | Millennium International Management LP | 2.37% | still open |
| January 29, 2015 | King Street Capital Management, L.P. | 0.59% | still open |
| January 28, 2015 | Millennium International Management LP | 2.21% | still open |
| January 27, 2015 | Millennium International Management LP | 1.96% | still open |
| January 21, 2015 | Millennium International Management LP | 1.84% | still open |
| January 16, 2015 | Pimco EQS Long Short Fund | 0.43% | still open |
| January 15, 2015 | Millennium International Management LP | 2.12% | still open |
| January 15, 2015 | Pimco EQS Long Short Fund | 0.59% | still open |
| January 14, 2015 | Millennium International Management LP | 2.05% | still open |
| January 12, 2015 | Millennium International Management LP | 1.96% | still open |
| January 9, 2015 | Millennium International Management LP | 1.70% | still open |
| January 8, 2015 | Millennium International Management LP | 1.82% | still open |
| January 7, 2015 | Millennium International Management LP | 1.75% | still open |
| January 6, 2015 | Millennium International Management LP | 1.61% | still open |
| January 5, 2015 | Millennium International Management LP | 1.53% | still open |
| December 30, 2014 | Millennium International Management LP | 1.25% | still open |
| December 26, 2014 | Millennium International Management LP | 1.16% | still open |
| December 23, 2014 | Millennium International Management LP | 1.29% | still open |
| December 18, 2014 | Millennium International Management LP | 1.54% | still open |
| December 17, 2014 | Millennium International Management LP | 1.48% | still open |
| December 16, 2014 | Millennium International Management LP | 1.25% | still open |
| December 15, 2014 | Millennium International Management LP | 0.76% | still open |
| November 12, 2014 | Millennium International Management LP | 0.40% | still open |
| November 11, 2014 | Millennium International Management LP | 0.62% | still open |
| November 10, 2014 | Millennium International Management LP | 0.79% | still open |
| November 7, 2014 | Millennium International Management LP | 0.88% | still open |
| November 6, 2014 | Millennium International Management LP | 1.05% | still open |
| November 5, 2014 | Millennium International Management LP | 1.19% | still open |
| November 4, 2014 | Millennium International Management LP | 1.28% | still open |
| November 3, 2014 | Millennium International Management LP | 1.50% | still open |
| October 31, 2014 | Millennium International Management LP | 1.72% | still open |
| October 30, 2014 | Millennium International Management LP | 1.86% | still open |
| October 27, 2014 | Millennium International Management LP | 2.02% | still open |
| October 24, 2014 | Millennium International Management LP | 1.62% | still open |
| October 23, 2014 | Millennium International Management LP | 1.35% | still open |
| October 22, 2014 | Millennium International Management LP | 1.02% | still open |
| October 20, 2014 | Millennium International Management LP | 0.94% | still open |
| October 17, 2014 | Millennium International Management LP | 1.11% | still open |
| October 14, 2014 | Millennium International Management LP | 1.25% | still open |