| March 30, 2022 | Saba Capital Management, L.P. | 0.96% | still open |
| June 18, 2021 | Millennium International Management LP | 0.00% | still open |
| June 17, 2021 | Millennium International Management LP | 0.86% | still open |
| June 16, 2021 | Millennium International Management LP | 0.72% | still open |
| June 15, 2021 | Millennium International Management LP | 0.64% | still open |
| June 9, 2021 | Millennium International Management LP | 0.50% | still open |
| May 17, 2021 | Saba Capital Management, L.P. | 1.23% | still open |
| May 10, 2021 | Saba Capital Management, L.P. | 1.03% | still open |
| May 5, 2021 | Saba Capital Management, L.P. | 0.82% | still open |
| April 29, 2021 | Saba Capital Management, L.P. | 0.70% | still open |
| April 19, 2021 | Saba Capital Management, L.P. | 0.63% | still open |
| April 14, 2021 | Saba Capital Management, L.P. | 0.54% | still open |
| March 15, 2019 | Millennium International Management LP | 0.21% | still open |
| March 14, 2019 | Millennium International Management LP | 0.65% | still open |
| March 12, 2019 | Millennium International Management LP | 0.51% | still open |
| April 11, 2018 | THE Mangrove Partners Master Fund, LTD. | 0.39% | still open |
| April 6, 2018 | THE Mangrove Partners Master Fund, LTD. | 0.55% | still open |
| April 5, 2018 | THE Mangrove Partners Master Fund, LTD. | 0.83% | still open |
| April 4, 2018 | THE Mangrove Partners Master Fund, LTD. | 1.28% | still open |
| March 28, 2018 | THE Mangrove Partners Master Fund, LTD. | 1.45% | still open |
| March 27, 2018 | THE Mangrove Partners Master Fund, LTD. | 1.55% | still open |
| September 27, 2017 | Numeric Investors LLC | 0.49% | still open |
| September 14, 2017 | Numeric Investors LLC | 0.55% | still open |
| September 11, 2017 | Numeric Investors LLC | 0.68% | still open |
| July 19, 2017 | Numeric Investors LLC | 0.78% | still open |
| June 30, 2017 | Numeric Investors LLC | 0.89% | still open |
| June 14, 2017 | GSA Capital Partners LLP | 0.47% | still open |
| June 8, 2017 | GSA Capital Partners LLP | 0.59% | still open |
| June 5, 2017 | GSA Capital Partners LLP | 0.69% | still open |
| May 19, 2017 | Numeric Investors LLC | 0.90% | still open |
| May 10, 2017 | Numeric Investors LLC | 0.82% | still open |
| May 9, 2017 | GSA Capital Partners LLP | 0.70% | still open |
| May 2, 2017 | Numeric Investors LLC | 0.71% | still open |
| May 2, 2017 | GSA Capital Partners LLP | 0.60% | still open |
| April 25, 2017 | GSA Capital Partners LLP | 0.51% | still open |
| April 20, 2017 | Numeric Investors LLC | 0.60% | still open |
| April 13, 2017 | Numeric Investors LLC | 0.53% | still open |
| March 17, 2017 | THE Mangrove Partners Master Fund, LTD. | 1.65% | still open |
| March 13, 2017 | THE Mangrove Partners Master Fund, LTD. | 1.49% | still open |
| March 7, 2017 | THE Mangrove Partners Master Fund, LTD. | 1.39% | still open |
| March 2, 2017 | THE Mangrove Partners Master Fund, LTD. | 1.29% | still open |
| February 24, 2017 | THE Mangrove Partners Master Fund, LTD. | 1.18% | still open |
| October 31, 2016 | THE Mangrove Partners Master Fund, LTD. | 1.28% | still open |
| April 19, 2016 | THE Mangrove Partners Master Fund, LTD. | 1.11% | still open |
| April 6, 2016 | THE Mangrove Partners Master Fund, LTD. | 1.00% | still open |
| March 29, 2016 | THE Mangrove Partners Master Fund, LTD. | 0.91% | still open |
| March 15, 2016 | THE Mangrove Partners Master Fund, LTD. | 0.80% | still open |
| February 29, 2016 | THE Mangrove Partners Master Fund, LTD. | 0.70% | still open |
| January 28, 2016 | THE Mangrove Partners Master Fund, LTD. | 0.60% | still open |
| January 14, 2016 | THE Mangrove Partners Master Fund, LTD. | 0.50% | still open |