| December 19, 2014 | Bluecrest Capital Management Limited | 0.59% | still open |
| December 19, 2014 | Blackrock Institutional Trust Company, National Association | 0.49% | still open |
| December 17, 2014 | Blackrock Institutional Trust Company, National Association | 0.50% | still open |
| December 16, 2014 | Sylebra Capital Limited | 0.50% | still open |
| December 15, 2014 | Marshall Wace LLP | 0.49% | still open |
| December 11, 2014 | Blackrock Institutional Trust Company, National Association | 0.49% | still open |
| December 5, 2014 | Blackrock Institutional Trust Company, National Association | 0.50% | still open |
| December 5, 2014 | Marshall Wace LLP | 0.50% | still open |
| December 3, 2014 | Jpmorgan Asset Management (UK) LTD | 0.64% | still open |
| December 2, 2014 | Jpmorgan Asset Management (UK) LTD | 0.50% | still open |
| November 26, 2014 | Jpmorgan Asset Management (UK) LTD | 0.49% | still open |
| November 10, 2014 | Jpmorgan Asset Management (UK) LTD | 0.54% | still open |
| November 7, 2014 | Jpmorgan Asset Management (UK) LTD | 0.62% | still open |
| November 5, 2014 | Bluecrest Capital Management Limited | 0.60% | still open |
| November 3, 2014 | Jpmorgan Asset Management (UK) LTD | 0.76% | still open |
| October 21, 2014 | FIL Fund Management Limited | 0.60% | still open |
| October 20, 2014 | Bluecrest Capital Management Limited | 0.59% | still open |
| October 17, 2014 | FIL Fund Management Limited | 0.50% | still open |
| October 16, 2014 | Blackrock Institutional Trust Company, National Association | 0.47% | still open |
| October 14, 2014 | Jpmorgan Asset Management (UK) LTD | 0.81% | still open |
| October 9, 2014 | Bluecrest Capital Management Limited | 0.60% | still open |
| October 8, 2014 | Jpmorgan Asset Management (UK) LTD | 0.71% | still open |
| September 26, 2014 | Jpmorgan Asset Management (UK) LTD | 0.58% | still open |
| September 15, 2014 | Jpmorgan Asset Management (UK) LTD | 0.82% | still open |
| September 12, 2014 | GMT Capital Corp | 3.24% | still open |
| September 8, 2014 | Parvus Asset Management Europe Limited | 0.49% | still open |
| September 2, 2014 | Bluecrest Capital Management Limited | 0.50% | still open |
| August 29, 2014 | Jpmorgan Asset Management (UK) LTD | 0.73% | still open |
| August 21, 2014 | Blackrock Institutional Trust Company, National Association | 0.50% | still open |
| August 21, 2014 | Bluecrest Capital Management Limited | 0.49% | still open |
| August 13, 2014 | Bluecrest Capital Management Limited | 0.57% | still open |
| August 11, 2014 | Jpmorgan Asset Management (UK) LTD | 0.52% | still open |
| July 30, 2014 | Bluecrest Capital Management Limited | 0.67% | still open |
| July 9, 2014 | Bluecrest Capital Management Limited | 0.71% | still open |
| July 3, 2014 | Bluecrest Capital Management Limited | 0.67% | still open |
| July 3, 2014 | Parvus Asset Management Europe Limited | 0.50% | still open |
| June 23, 2014 | GMT Capital Corp | 3.11% | still open |
| June 20, 2014 | Bluecrest Capital Management Limited | 0.71% | still open |
| June 13, 2014 | GMT Capital Corp | 3.02% | still open |
| June 12, 2014 | Bluecrest Capital Management Limited | 0.60% | still open |
| June 10, 2014 | GMT Capital Corp | 2.95% | still open |
| June 10, 2014 | Kynikos Associates LP | 0.49% | still open |
| June 3, 2014 | GMT Capital Corp | 2.80% | still open |
| June 3, 2014 | Bluecrest Capital Management Limited | 0.50% | still open |
| June 2, 2014 | GMT Capital Corp | 2.70% | still open |
| June 2, 2014 | Kynikos Associates LP | 0.54% | still open |
| May 28, 2014 | Kynikos Associates LP | 0.61% | still open |
| May 27, 2014 | GMT Capital Corp | 2.67% | still open |
| May 23, 2014 | Blackrock Institutional Trust Company, National Association | 0.49% | still open |
| May 19, 2014 | GMT Capital Corp | 2.45% | still open |