| April 12, 2017 | Adage Capital Management L.P. | 0.83% | still open |
| April 4, 2017 | Adage Capital Management L.P. | 0.70% | still open |
| April 3, 2017 | Millennium International Management LP | 0.50% | still open |
| March 29, 2017 | Adage Capital Management L.P. | 0.62% | still open |
| March 28, 2017 | Adage Capital Management L.P. | 0.58% | still open |
| March 6, 2017 | Discovery Capital Management, LLC | 1.39% | still open |
| October 14, 2016 | Millennium International Management LP | 0.49% | still open |
| October 12, 2016 | Millennium International Management LP | 0.55% | still open |
| October 11, 2016 | Millennium International Management LP | 0.67% | still open |
| October 10, 2016 | Discovery Capital Management, LLC | 1.47% | still open |
| October 6, 2016 | Millennium International Management LP | 0.79% | still open |
| October 5, 2016 | Millennium International Management LP | 0.96% | still open |
| September 30, 2016 | Millennium International Management LP | 1.00% | still open |
| September 23, 2016 | Millennium International Management LP | 0.90% | still open |
| September 21, 2016 | Millennium International Management LP | 0.89% | still open |
| September 19, 2016 | Millennium International Management LP | 0.90% | still open |
| September 14, 2016 | Millennium International Management LP | 0.84% | still open |
| September 8, 2016 | Millennium International Management LP | 0.73% | still open |
| September 7, 2016 | Millennium International Management LP | 0.69% | still open |
| September 6, 2016 | Millennium International Management LP | 0.71% | still open |
| September 2, 2016 | Millennium International Management LP | 0.69% | still open |
| September 1, 2016 | Millennium International Management LP | 0.70% | still open |
| August 23, 2016 | Millennium International Management LP | 0.60% | still open |
| August 18, 2016 | Millennium International Management LP | 0.59% | still open |
| August 17, 2016 | Millennium International Management LP | 0.60% | still open |
| August 12, 2016 | Millennium International Management LP | 0.50% | still open |
| June 24, 2016 | Discovery Capital Management, LLC | 1.52% | still open |
| April 21, 2016 | AQR Capital Management, LLC | 0.49% | still open |
| March 9, 2016 | Discovery Capital Management, LLC | 1.63% | still open |
| March 8, 2016 | Discovery Capital Management, LLC | 1.72% | still open |
| March 7, 2016 | Discovery Capital Management, LLC | 1.95% | still open |
| February 25, 2016 | Discovery Capital Management, LLC | 2.03% | still open |
| February 24, 2016 | Discovery Capital Management, LLC | 2.15% | still open |
| February 23, 2016 | Discovery Capital Management, LLC | 2.43% | still open |
| February 22, 2016 | Discovery Capital Management, LLC | 2.62% | still open |
| January 19, 2016 | Canada Pension Plan Investment Board | 0.20% | still open |
| January 15, 2016 | Discovery Capital Management, LLC | 2.77% | still open |
| January 11, 2016 | AQR Capital Management, LLC | 0.50% | still open |
| December 22, 2015 | AQR Capital Management, LLC | 0.49% | still open |
| December 18, 2015 | AQR Capital Management, LLC | 0.50% | still open |
| October 20, 2015 | AQR Capital Management, LLC | 0.49% | still open |
| September 4, 2015 | Discovery Capital Management, LLC | 2.86% | still open |
| June 29, 2015 | AQR Capital Management, LLC | 0.50% | still open |
| June 1, 2015 | AQR Capital Management, LLC | 0.49% | still open |
| February 6, 2015 | AQR Capital Management, LLC | 0.59% | still open |
| January 8, 2015 | Discovery Capital Management, LLC | 2.93% | still open |
| October 15, 2014 | Discovery Capital Management, LLC | 2.83% | still open |
| October 6, 2014 | Coatue Management, L.L.C. | 0.46% | still open |
| October 2, 2014 | Coatue Management, L.L.C. | 0.51% | still open |
| August 13, 2014 | Coatue Management, L.L.C. | 0.60% | still open |