| August 21, 2015 | Susquehanna International Holdings LLC | 0.50% | still open |
| August 17, 2015 | BlackRock Institutional Trust Company, National Association | 0.49% | still open |
| August 7, 2015 | BlackRock Advisors, LLC | 0.47% | still open |
| August 6, 2015 | BlackRock Institutional Trust Company, National Association | 0.59% | still open |
| August 5, 2015 | Basso Capital Management, L.P | 0.60% | still open |
| August 3, 2015 | BlackRock Investment Management (UK) Limited | 0.41% | still open |
| July 31, 2015 | Adage Capital Management L.P. | 4.15% | still open |
| July 30, 2015 | CQS (UK) LLP | 0.99% | still open |
| July 30, 2015 | BlackRock Investment Management (UK) Limited | 0.58% | still open |
| July 28, 2015 | BlackRock Institutional Trust Company, National Association | 0.69% | still open |
| July 24, 2015 | Adage Capital Management L.P. | 4.02% | still open |
| July 22, 2015 | Adage Capital Management L.P. | 3.96% | still open |
| July 20, 2015 | Adage Capital Management L.P. | 3.83% | still open |
| July 16, 2015 | BlackRock Institutional Trust Company, National Association | 0.70% | still open |
| July 15, 2015 | BlackRock Investment Management (UK) Limited | 0.60% | still open |
| July 10, 2015 | CQS (UK) LLP | 1.01% | still open |
| July 10, 2015 | BlackRock Advisors, LLC | 0.59% | still open |
| July 10, 2015 | BlackRock Investment Management (UK) Limited | 0.52% | still open |
| July 7, 2015 | CQS (UK) LLP | 0.99% | still open |
| July 7, 2015 | BNP Paribas S.A. | 0.47% | still open |
| July 6, 2015 | BlackRock Institutional Trust Company, National Association | 0.69% | still open |
| July 6, 2015 | Basso Capital Management, L.P | 0.57% | still open |
| July 2, 2015 | Adage Capital Management L.P. | 3.76% | still open |
| June 30, 2015 | Adage Capital Management L.P. | 3.83% | still open |
| June 30, 2015 | BNP Paribas S.A. | 0.62% | still open |
| June 17, 2015 | BlackRock Advisors, LLC | 0.69% | still open |
| June 15, 2015 | Adage Capital Management L.P. | 4.07% | still open |
| June 15, 2015 | BNP Paribas S.A. | 0.52% | still open |
| June 5, 2015 | BlackRock Institutional Trust Company, National Association | 0.78% | still open |
| June 1, 2015 | BNP Paribas S.A. | 0.43% | still open |
| May 29, 2015 | BlackRock Institutional Trust Company, National Association | 0.80% | still open |
| May 29, 2015 | Basso Capital Management, L.P | 0.69% | still open |
| May 22, 2015 | Adage Capital Management L.P. | 4.10% | still open |
| May 18, 2015 | BlackRock Advisors, LLC | 0.78% | still open |
| May 18, 2015 | BlackRock Institutional Trust Company, National Association | 0.78% | still open |
| May 13, 2015 | BlackRock Investment Management (UK) Limited | 0.49% | still open |
| May 11, 2015 | BNP Paribas S.A. | 0.53% | still open |
| May 8, 2015 | BlackRock Institutional Trust Company, National Association | 0.88% | still open |
| May 7, 2015 | CQS (UK) LLP | 1.09% | still open |
| May 6, 2015 | CQS (UK) LLP | 1.20% | still open |
| May 5, 2015 | Adage Capital Management L.P. | 4.01% | still open |
| May 5, 2015 | CQS (UK) LLP | 1.17% | still open |
| May 5, 2015 | BNP Paribas S.A. | 0.44% | still open |
| April 30, 2015 | BlackRock Investment Management (UK) Limited | 0.59% | still open |
| April 29, 2015 | Adage Capital Management L.P. | 3.84% | still open |
| April 29, 2015 | CQS (UK) LLP | 1.33% | still open |
| April 29, 2015 | BlackRock Institutional Trust Company, National Association | 0.99% | still open |
| April 27, 2015 | Adage Capital Management L.P. | 3.91% | still open |
| April 22, 2015 | BlackRock Institutional Trust Company, National Association | 1.00% | still open |
| April 22, 2015 | Basso Capital Management, L.P | 0.53% | still open |