| October 17, 2013 | Blackrock Institutional Trust Company, National Association | 2.39% | still open |
| October 16, 2013 | Blackrock Institutional Trust Company, National Association | 2.20% | still open |
| October 16, 2013 | Marshall Wace LLP | 0.48% | still open |
| October 14, 2013 | Blackrock Institutional Trust Company, National Association | 2.13% | still open |
| October 14, 2013 | Morton Holdings, INC. | 0.86% | still open |
| October 14, 2013 | Bluecrest Capital Management Limited | 0.51% | still open |
| October 14, 2013 | Marshall Wace LLP | 0.50% | still open |
| October 11, 2013 | Blackrock Institutional Trust Company, National Association | 2.08% | still open |
| October 11, 2013 | Morton Holdings, INC. | 0.94% | still open |
| October 11, 2013 | Bluecrest Capital Management Limited | 0.49% | still open |
| October 11, 2013 | Anchorage Capital Master Offshore, LTD. | 0.15% | still open |
| October 10, 2013 | Morton Holdings, INC. | 1.02% | still open |
| October 10, 2013 | Anchorage Capital Master Offshore, LTD. | 0.58% | still open |
| October 10, 2013 | GLG Partners LP | 0.55% | still open |
| October 9, 2013 | Blackrock Institutional Trust Company, National Association | 1.90% | still open |
| October 9, 2013 | Anchorage Capital Master Offshore, LTD. | 0.91% | still open |
| October 9, 2013 | Highbridge Capital Management LLC | 0.81% | still open |
| October 9, 2013 | Bluecrest Capital Management Limited | 0.50% | still open |
| October 4, 2013 | Blackrock Institutional Trust Company, National Association | 1.70% | still open |
| October 3, 2013 | Blackrock Institutional Trust Company, National Association | 1.67% | still open |
| October 3, 2013 | Highbridge Capital Management LLC | 0.70% | still open |
| October 1, 2013 | Blackrock Institutional Trust Company, National Association | 1.52% | still open |
| October 1, 2013 | Highbridge Capital Management LLC | 0.62% | still open |
| September 30, 2013 | Blackrock Institutional Trust Company, National Association | 1.39% | still open |
| September 30, 2013 | Highbridge Capital Management LLC | 0.58% | still open |
| September 26, 2013 | GLG Partners LP | 0.79% | still open |
| September 25, 2013 | Blackrock Institutional Trust Company, National Association | 1.20% | still open |
| September 24, 2013 | Blackrock Institutional Trust Company, National Association | 1.11% | still open |
| September 20, 2013 | GLG Partners LP | 0.60% | still open |
| September 19, 2013 | Blackrock Institutional Trust Company, National Association | 1.00% | still open |
| September 16, 2013 | Blackrock Investment Management (UK) Limited | 0.56% | still open |
| September 12, 2013 | GLG Partners LP | 0.56% | still open |
| September 10, 2013 | Blackrock Institutional Trust Company, National Association | 0.90% | still open |
| September 3, 2013 | Blackrock Institutional Trust Company, National Association | 0.81% | still open |
| August 30, 2013 | Blackrock Institutional Trust Company, National Association | 0.79% | still open |
| August 29, 2013 | Blackrock Institutional Trust Company, National Association | 0.82% | still open |
| August 28, 2013 | Blackrock Institutional Trust Company, National Association | 0.79% | still open |
| August 23, 2013 | Blackrock Institutional Trust Company, National Association | 0.82% | still open |
| August 21, 2013 | Blackrock Institutional Trust Company, National Association | 0.77% | still open |
| August 19, 2013 | Blackrock Institutional Trust Company, National Association | 0.69% | still open |
| August 14, 2013 | Blackrock Institutional Trust Company, National Association | 0.70% | still open |
| August 12, 2013 | Blackrock Institutional Trust Company, National Association | 0.66% | still open |
| August 12, 2013 | GLG Partners LP | 0.46% | still open |
| August 5, 2013 | Blackrock Institutional Trust Company, National Association | 0.51% | still open |
| July 31, 2013 | Anchorage Capital Master Offshore, LTD. | 1.32% | still open |
| July 26, 2013 | Blackrock Institutional Trust Company, National Association | 0.49% | still open |
| July 24, 2013 | Anchorage Capital Master Offshore, LTD. | 1.23% | still open |
| July 24, 2013 | GLG Partners LP | 0.52% | still open |
| July 18, 2013 | Anchorage Capital Master Offshore, LTD. | 1.14% | still open |
| July 11, 2013 | Anchorage Capital Master Offshore, LTD. | 1.02% | still open |
| July 10, 2013 | Blackrock Institutional Trust Company, National Association | 0.53% | still open |
| July 2, 2013 | Anchorage Capital Master Offshore, LTD. | 0.91% | still open |
| May 20, 2013 | Marshall Wace LLP | 0.46% | still open |
| May 13, 2013 | Morton Holdings, INC. | 1.17% | still open |
| May 3, 2013 | Marshall Wace LLP | 0.56% | still open |
| May 2, 2013 | Marshall Wace LLP | 0.60% | still open |
| April 25, 2013 | Blackrock Investment Management (UK) Limited | 0.43% | still open |
| April 24, 2013 | Blackrock Investment Management (UK) Limited | 0.51% | still open |
| April 23, 2013 | Blackrock Investment Management (UK) Limited | 0.65% | still open |
| April 19, 2013 | Marshall Wace LLP | 0.51% | still open |
| April 16, 2013 | GLG Partners LP | 0.31% | still open |
| April 15, 2013 | Blackrock Investment Management (UK) Limited | 0.71% | still open |
| April 12, 2013 | GLG Partners LP | 0.51% | still open |
| April 11, 2013 | GLG Partners LP | 0.49% | still open |
| April 10, 2013 | Blackrock Investment Management (UK) Limited | 0.69% | still open |
| April 5, 2013 | Blackrock Investment Management (UK) Limited | 0.70% | still open |
| March 28, 2013 | Blackrock Investment Management (UK) Limited | 0.55% | still open |
| March 25, 2013 | GLG Partners LP | 0.59% | still open |
| March 22, 2013 | GLG Partners LP | 0.61% | still open |
| March 13, 2013 | GLG Partners LP | 0.50% | still open |
| February 20, 2013 | Anchorage Capital Master Offshore, LTD. | 0.81% | still open |
| February 11, 2013 | Anchorage Capital Master Offshore, LTD. | 0.70% | still open |
| February 7, 2013 | Anchorage Capital Master Offshore, LTD. | 0.62% | still open |
| February 6, 2013 | Anchorage Capital Master Offshore, LTD. | 0.59% | still open |
| November 1, 2012 | Morton Holdings, INC. | 1.26% | still open |
| November 1, 2012 | Anchorage Capital Master Offshore, LTD. | 0.81% | still open |