| March 1, 2018 | Kairos Investment Management Limited | 2.39% | still open |
| January 23, 2018 | Kairos Investment Management Limited | 2.50% | still open |
| January 19, 2018 | Kairos Investment Management Limited | 2.40% | still open |
| January 18, 2018 | Kairos Investment Management Limited | 2.34% | still open |
| January 17, 2018 | Kairos Investment Management Limited | 2.18% | still open |
| January 16, 2018 | Kairos Investment Management Limited | 1.76% | still open |
| January 15, 2018 | Kairos Investment Management Limited | 1.51% | still open |
| January 12, 2018 | Kairos Investment Management Limited | 1.00% | still open |
| January 10, 2018 | Kairos Partners SGR SPA | 0.81% | still open |
| January 9, 2018 | Kite Lake Capital Management (UK) LLP | 1.41% | still open |
| January 8, 2018 | Kite Lake Capital Management (UK) LLP | 1.15% | still open |
| December 15, 2017 | Kite Lake Capital Management (UK) LLP | 1.02% | still open |
| December 14, 2017 | Kite Lake Capital Management (UK) LLP | 0.91% | still open |
| December 6, 2017 | Kite Lake Capital Management (UK) LLP | 0.68% | still open |
| December 5, 2017 | Sculptor Capital Management Europe Limited | 0.39% | still open |
| December 4, 2017 | Sculptor Capital Management Europe Limited | 0.55% | still open |
| November 30, 2017 | Kite Lake Capital Management (UK) LLP | 0.57% | still open |
| November 23, 2017 | Sculptor Capital Management Europe Limited | 0.75% | still open |
| November 16, 2017 | Kairos Partners SGR SPA | 0.76% | still open |
| November 16, 2017 | Marshall Wace LLP | 0.22% | still open |
| November 13, 2017 | Marshall Wace LLP | 0.92% | still open |
| November 10, 2017 | Marshall Wace LLP | 0.85% | still open |
| November 7, 2017 | Marshall Wace LLP | 0.72% | still open |
| October 24, 2017 | Marshall Wace LLP | 0.68% | still open |
| October 13, 2017 | Kairos Partners SGR SPA | 0.69% | still open |
| October 11, 2017 | Marshall Wace LLP | 0.77% | still open |
| September 19, 2017 | Marshall Wace LLP | 0.80% | still open |
| September 13, 2017 | Blackrock Institutional Trust Company, National Association | 0.47% | still open |
| September 4, 2017 | Blackrock Institutional Trust Company, National Association | 0.56% | still open |
| September 4, 2017 | Oxford Asset Management | 0.49% | still open |
| September 1, 2017 | Marshall Wace LLP | 0.78% | still open |
| August 24, 2017 | Blackrock Institutional Trust Company, National Association | 0.70% | still open |
| August 11, 2017 | Marshall Wace LLP | 0.80% | still open |
| August 10, 2017 | Blackrock Institutional Trust Company, National Association | 0.60% | still open |
| August 3, 2017 | Blackrock Institutional Trust Company, National Association | 0.58% | still open |
| July 31, 2017 | Marshall Wace LLP | 0.78% | still open |
| July 24, 2017 | Blackrock Institutional Trust Company, National Association | 0.62% | still open |
| July 20, 2017 | Oxford Asset Management | 0.59% | still open |
| July 20, 2017 | Blackrock Institutional Trust Company, National Association | 0.58% | still open |
| July 19, 2017 | Kairos Partners SGR SPA | 0.79% | still open |
| July 10, 2017 | Blackrock Institutional Trust Company, National Association | 0.60% | still open |
| June 29, 2017 | Marshall Wace LLP | 0.82% | still open |
| June 28, 2017 | Blackrock Institutional Trust Company, National Association | 0.53% | still open |
| June 22, 2017 | Blackrock Institutional Trust Company, National Association | 0.61% | still open |
| June 19, 2017 | Blackrock Institutional Trust Company, National Association | 0.51% | still open |
| June 6, 2017 | Kairos Partners SGR SPA | 0.89% | still open |
| June 1, 2017 | Marshall Wace LLP | 0.71% | still open |
| May 23, 2017 | Marshall Wace LLP | 0.62% | still open |
| May 22, 2017 | Macquarie Group Limited | 0.49% | still open |
| May 17, 2017 | Macquarie Group Limited | 0.58% | still open |