| June 30, 2020 | Qube Research & Technologies Limited | 0.40% | still open |
| June 29, 2020 | Qube Research & Technologies Limited | 0.50% | still open |
| June 25, 2020 | York Capital Management Global Advisors, LLC | 3.54% | still open |
| June 23, 2020 | York Capital Management Global Advisors, LLC | 3.15% | still open |
| June 22, 2020 | York Capital Management Global Advisors, LLC | 2.86% | still open |
| June 18, 2020 | York Capital Management Global Advisors, LLC | 2.58% | still open |
| June 17, 2020 | York Capital Management Global Advisors, LLC | 2.19% | still open |
| June 5, 2020 | Arrowstreet Capital, L.P. | 0.90% | still open |
| June 3, 2020 | Qube Research & Technologies Limited | 0.47% | still open |
| May 29, 2020 | Qube Research & Technologies Limited | 0.51% | still open |
| May 28, 2020 | York Capital Management Global Advisors, LLC | 2.08% | still open |
| May 27, 2020 | York Capital Management Global Advisors, LLC | 2.21% | still open |
| May 26, 2020 | York Capital Management Global Advisors, LLC | 2.39% | still open |
| May 25, 2020 | York Capital Management Global Advisors, LLC | 2.51% | still open |
| May 20, 2020 | Citadel Advisors LLC | 0.45% | still open |
| May 13, 2020 | York Capital Management Global Advisors, LLC | 2.69% | still open |
| May 12, 2020 | York Capital Management Global Advisors, LLC | 2.79% | still open |
| May 11, 2020 | York Capital Management Global Advisors, LLC | 3.15% | still open |
| May 8, 2020 | York Capital Management Global Advisors, LLC | 3.49% | still open |
| May 7, 2020 | York Capital Management Global Advisors, LLC | 3.63% | still open |
| May 4, 2020 | Citadel Advisors LLC | 0.58% | still open |
| April 30, 2020 | Arrowstreet Capital, L.P. | 0.80% | still open |
| April 17, 2020 | Citadel Advisors LLC | 0.60% | still open |
| April 15, 2020 | Citadel Advisors LLC | 0.50% | still open |
| March 26, 2020 | Arrowstreet Capital, L.P. | 0.70% | still open |
| March 25, 2020 | Arrowstreet Capital, L.P. | 0.64% | still open |
| March 23, 2020 | Arrowstreet Capital, L.P. | 0.53% | still open |
| March 6, 2020 | York Capital Management Global Advisors, LLC | 3.86% | still open |
| March 5, 2020 | York Capital Management Global Advisors, LLC | 3.75% | still open |
| March 3, 2020 | York Capital Management Global Advisors, LLC | 3.62% | still open |
| March 2, 2020 | York Capital Management Global Advisors, LLC | 3.52% | still open |
| February 28, 2020 | York Capital Management Global Advisors, LLC | 3.28% | still open |
| February 27, 2020 | York Capital Management Global Advisors, LLC | 3.01% | still open |
| February 26, 2020 | York Capital Management Global Advisors, LLC | 2.73% | still open |
| February 25, 2020 | York Capital Management Global Advisors, LLC | 2.42% | still open |
| February 24, 2020 | York Capital Management Global Advisors, LLC | 2.29% | still open |
| February 21, 2020 | York Capital Management Global Advisors, LLC | 2.16% | still open |
| February 18, 2020 | York Capital Management Global Advisors, LLC | 2.01% | still open |
| February 13, 2020 | York Capital Management Global Advisors, LLC | 1.96% | still open |
| February 10, 2020 | York Capital Management Global Advisors, LLC | 1.70% | still open |
| January 24, 2020 | York Capital Management Global Advisors, LLC | 1.61% | still open |
| January 23, 2020 | York Capital Management Global Advisors, LLC | 1.54% | still open |
| January 22, 2020 | York Capital Management Global Advisors, LLC | 1.33% | still open |
| January 21, 2020 | York Capital Management Global Advisors, LLC | 1.23% | still open |
| January 16, 2020 | York Capital Management Global Advisors, LLC | 1.03% | still open |
| January 14, 2020 | York Capital Management Global Advisors, LLC | 0.98% | still open |
| January 13, 2020 | York Capital Management Global Advisors, LLC | 0.76% | still open |
| January 9, 2020 | York Capital Management Global Advisors, LLC | 0.62% | still open |
| November 12, 2019 | York Capital Management Global Advisors, LLC | 0.53% | still open |
| October 17, 2019 | Arrowstreet Capital, L.P. | 0.47% | still open |