| June 2, 2015 | Tetragon Partners UK LLP | 0.60% | still open |
| May 29, 2015 | Weiss Asset Management LP | 0.62% | still open |
| May 29, 2015 | Susquehanna International Holdings LLC | 0.38% | still open |
| May 28, 2015 | Susquehanna International Holdings LLC | 0.68% | still open |
| May 27, 2015 | Susquehanna International Holdings LLC | 0.77% | still open |
| May 25, 2015 | Susquehanna International Holdings LLC | 0.66% | still open |
| May 22, 2015 | Altair Investment Management Limited | 0.25% | still open |
| May 21, 2015 | Altair Investment Management Limited | 0.53% | still open |
| May 20, 2015 | Altair Investment Management Limited | 0.62% | still open |
| May 19, 2015 | Altair Investment Management Limited | 0.73% | still open |
| April 20, 2015 | Altair Investment Management Limited | 0.85% | still open |
| April 14, 2015 | Altair Investment Management Limited | 0.65% | still open |
| February 27, 2015 | Altair Investment Management Limited | 0.51% | still open |
| February 10, 2015 | Altair Investment Management Limited | 0.93% | still open |
| February 6, 2015 | Altair Investment Management Limited | 0.82% | still open |
| February 5, 2015 | Altair Investment Management Limited | 0.72% | still open |
| January 30, 2015 | Altair Investment Management Limited | 0.62% | still open |
| December 16, 2014 | Odey Asset Management LLP | 0.32% | still open |
| October 16, 2014 | Odey Asset Management LLP | 0.61% | still open |
| July 16, 2014 | Odey Asset Management LLP | 0.45% | still open |
| July 10, 2014 | ALGEBRIS (UK) Limited | 0.02% | still open |
| June 30, 2014 | Odey Asset Management LLP | 0.61% | still open |
| June 30, 2014 | Marshall Wace LLP | 0.02% | still open |
| June 27, 2014 | Polygon Global Partners LLP | 0.00% | still open |
| June 27, 2014 | Susquehanna International Holdings LLC | 0.00% | still open |
| June 27, 2014 | Tetragon Partners UK LLP | 0.00% | still open |
| June 26, 2014 | Susquehanna International Holdings LLC | 0.71% | still open |
| June 25, 2014 | Susquehanna International Holdings LLC | 0.60% | still open |
| June 25, 2014 | Odey Asset Management LLP | 0.57% | still open |
| June 25, 2014 | TIbra Equities Europe Limited | 0.37% | still open |
| June 24, 2014 | Susquehanna International Holdings LLC | 3.35% | still open |
| June 24, 2014 | TIbra Equities Europe Limited | 1.97% | still open |
| June 23, 2014 | Susquehanna International Holdings LLC | 2.46% | still open |
| June 20, 2014 | Susquehanna International Holdings LLC | 1.64% | still open |
| June 19, 2014 | Marshall Wace LLP | 1.88% | still open |
| June 19, 2014 | Polygon Global Partners LLP | 1.21% | still open |
| June 19, 2014 | Tetragon Partners UK LLP | 1.21% | still open |
| June 19, 2014 | Susquehanna International Holdings LLC | 1.12% | still open |
| June 18, 2014 | Susquehanna International Holdings LLC | 0.99% | still open |
| June 17, 2014 | Susquehanna International Holdings LLC | 0.60% | still open |
| June 16, 2014 | Marshall Wace LLP | 1.65% | still open |
| June 16, 2014 | Susquehanna International Holdings LLC | 1.26% | still open |
| June 16, 2014 | Polygon Global Partners LLP | 1.00% | still open |
| June 16, 2014 | Tetragon Partners UK LLP | 1.00% | still open |
| June 13, 2014 | Susquehanna International Holdings LLC | 2.85% | still open |
| June 13, 2014 | Marshall Wace LLP | 1.32% | still open |
| June 13, 2014 | Polygon Global Partners LLP | 0.83% | still open |
| June 13, 2014 | Tetragon Partners UK LLP | 0.83% | still open |
| June 12, 2014 | Susquehanna International Holdings LLC | 2.45% | still open |
| June 12, 2014 | Polygon Global Partners LLP | 0.79% | still open |