| January 31, 2020 | Zimmer Partners, LP | 0.00% | still open |
| November 14, 2019 | Zimmer Partners, LP | 1.10% | still open |
| October 8, 2019 | Zimmer Partners, LP | 1.01% | still open |
| September 13, 2019 | Zimmer Partners, LP | 0.90% | still open |
| September 2, 2019 | Zimmer Partners, LP | 0.88% | still open |
| August 7, 2019 | Zimmer Partners, LP | 0.70% | still open |
| July 15, 2019 | Zimmer Partners, LP | 0.63% | still open |
| July 10, 2019 | Zimmer Partners, LP | 0.56% | still open |
| April 5, 2019 | Blackrock Institutional Trust Company, National Association | 0.49% | still open |
| March 25, 2019 | Blackrock Institutional Trust Company, National Association | 0.58% | still open |
| March 8, 2019 | Blackrock Institutional Trust Company, National Association | 0.69% | still open |
| February 14, 2019 | Blackrock Institutional Trust Company, National Association | 0.71% | still open |
| February 7, 2019 | Blackrock Institutional Trust Company, National Association | 0.60% | still open |
| January 23, 2019 | Blackrock Institutional Trust Company, National Association | 0.51% | still open |
| November 8, 2018 | Blackrock Institutional Trust Company, National Association | 0.48% | still open |
| October 31, 2018 | Blackrock Institutional Trust Company, National Association | 0.58% | still open |
| October 23, 2018 | Blackrock Institutional Trust Company, National Association | 0.60% | still open |
| October 9, 2018 | Blackrock Institutional Trust Company, National Association | 0.51% | still open |
| September 3, 2018 | Blackrock Institutional Trust Company, National Association | 0.46% | still open |
| August 24, 2018 | Blackrock Institutional Trust Company, National Association | 0.59% | still open |
| August 9, 2018 | Blackrock Institutional Trust Company, National Association | 0.68% | still open |
| July 31, 2018 | Blackrock Institutional Trust Company, National Association | 0.70% | still open |
| July 25, 2018 | Blackrock Institutional Trust Company, National Association | 0.64% | still open |
| July 23, 2018 | Blackrock Institutional Trust Company, National Association | 0.51% | still open |
| March 22, 2018 | BNP Paribas SA | 0.00% | still open |
| March 21, 2018 | BNP Paribas SA | 1.23% | still open |
| March 21, 2018 | Polygon Global Partners LLP | 0.00% | still open |
| March 1, 2018 | BNP Paribas SA | 2.17% | still open |
| January 31, 2018 | BNP Paribas SA | 1.59% | still open |
| January 31, 2018 | Polygon Global Partners LLP | 1.23% | still open |
| January 26, 2018 | BNP Paribas SA | 1.75% | still open |
| January 25, 2018 | Polygon Global Partners LLP | 1.35% | still open |
| January 3, 2018 | CQS (UK) LLP | 1.56% | still open |
| December 11, 2017 | CQS (UK) LLP | 1.61% | still open |
| November 28, 2017 | BNP Paribas SA | 1.06% | still open |
| November 15, 2017 | CQS (UK) LLP | 1.43% | still open |
| August 14, 2017 | Blackrock Institutional Trust Company, National Association | 0.49% | still open |
| August 3, 2017 | Blackrock Institutional Trust Company, National Association | 0.59% | still open |
| July 27, 2017 | Blackrock Institutional Trust Company, National Association | 0.60% | still open |
| July 25, 2017 | Blackrock Institutional Trust Company, National Association | 0.54% | still open |
| July 3, 2017 | Blackrock Investment Management (UK) Limited | 0.49% | still open |
| June 29, 2017 | Blackrock Investment Management (UK) Limited | 0.56% | still open |
| June 22, 2017 | Blackrock Investment Management (UK) Limited | 0.69% | still open |
| June 12, 2017 | BNP Paribas SA | 1.40% | still open |
| June 8, 2017 | Blackrock Investment Management (UK) Limited | 0.71% | still open |
| May 30, 2017 | CQS (UK) LLP | 1.11% | still open |
| May 22, 2017 | Blackrock Institutional Trust Company, National Association | 0.68% | still open |
| May 19, 2017 | Blackrock Institutional Trust Company, National Association | 0.49% | still open |
| May 10, 2017 | Blackrock Investment Management (UK) Limited | 0.71% | still open |
| May 9, 2017 | Blackrock Institutional Trust Company, National Association | 0.50% | still open |