| January 21, 2015 | Signpost Capital Advisors, LP | 1.51% | still open |
| January 21, 2015 | Millennium International Management LP | 1.45% | still open |
| January 20, 2015 | Millennium International Management LP | 1.57% | still open |
| January 19, 2015 | Millennium International Management LP | 1.57% | still open |
| January 8, 2015 | Millennium International Management LP | 1.70% | still open |
| January 7, 2015 | Millennium International Management LP | 1.70% | still open |
| December 23, 2014 | EverPoint Asset Management, LLC | 0.63% | still open |
| December 22, 2014 | EverPoint Asset Management, LLC | 0.55% | still open |
| December 21, 2014 | EverPoint Asset Management, LLC | 0.55% | still open |
| December 19, 2014 | Millennium International Management LP | 1.69% | still open |
| December 18, 2014 | Millennium International Management LP | 1.69% | still open |
| December 3, 2014 | Millennium International Management LP | 1.73% | still open |
| December 2, 2014 | Millennium International Management LP | 1.73% | still open |
| November 27, 2014 | Millennium International Management LP | 1.69% | still open |
| November 26, 2014 | Millennium International Management LP | 1.69% | still open |
| November 24, 2014 | Millennium International Management LP | 1.77% | still open |
| November 23, 2014 | Millennium International Management LP | 1.77% | still open |
| November 21, 2014 | Millennium International Management LP | 1.80% | still open |
| November 20, 2014 | Millennium International Management LP | 1.80% | still open |
| November 3, 2014 | Millennium International Management LP | 1.75% | still open |
| November 2, 2014 | Millennium International Management LP | 1.75% | still open |
| October 22, 2014 | Millennium International Management LP | 1.96% | still open |
| October 21, 2014 | Millennium International Management LP | 1.96% | still open |
| October 7, 2014 | Millennium International Management LP | 1.87% | still open |
| October 6, 2014 | Millennium International Management LP | 1.87% | still open |
| September 30, 2014 | Millennium International Management LP | 1.76% | still open |
| September 29, 2014 | Millennium International Management LP | 1.76% | still open |
| September 4, 2014 | Millennium International Management LP | 1.65% | still open |
| September 3, 2014 | Millennium International Management LP | 1.65% | still open |
| September 2, 2014 | Signpost Capital Advisors, LP | 1.61% | still open |
| September 1, 2014 | Signpost Capital Advisors, LP | 1.61% | still open |
| August 29, 2014 | Millennium International Management LP | 1.59% | still open |
| August 29, 2014 | Signpost Capital Advisors, LP | 1.50% | still open |
| August 28, 2014 | Millennium International Management LP | 1.59% | still open |
| August 28, 2014 | Signpost Capital Advisors, LP | 1.38% | still open |
| August 27, 2014 | Signpost Capital Advisors, LP | 1.29% | still open |
| August 26, 2014 | Signpost Capital Advisors, LP | 1.18% | still open |
| August 25, 2014 | Millennium International Management LP | 1.63% | still open |
| August 25, 2014 | Signpost Capital Advisors, LP | 1.06% | still open |
| August 24, 2014 | Millennium International Management LP | 1.63% | still open |
| August 24, 2014 | Signpost Capital Advisors, LP | 1.06% | still open |
| August 22, 2014 | Millennium International Management LP | 1.56% | still open |
| August 22, 2014 | Signpost Capital Advisors, LP | 0.79% | still open |
| August 21, 2014 | Millennium International Management LP | 1.45% | still open |
| August 21, 2014 | Signpost Capital Advisors, LP | 0.79% | still open |
| August 20, 2014 | Millennium International Management LP | 1.45% | still open |
| August 18, 2014 | Millennium International Management LP | 1.30% | still open |
| August 17, 2014 | Millennium International Management LP | 1.30% | still open |
| August 13, 2014 | Millennium International Management LP | 1.24% | still open |
| August 12, 2014 | Millennium International Management LP | 1.24% | still open |