| September 29, 2015 | Fore Research & Management, LP | 0.50% | still open |
| August 12, 2015 | Susquehanna International Holdings LLC | 0.72% | still open |
| July 31, 2015 | Susquehanna International Holdings LLC | 0.69% | still open |
| July 14, 2015 | BNP Paribas SA | 0.89% | still open |
| July 7, 2015 | Capstone Volatility Master (Cayman) Limited | 1.01% | still open |
| June 29, 2015 | Susquehanna International Holdings LLC | 0.70% | still open |
| June 23, 2015 | Susquehanna International Holdings LLC | 0.69% | still open |
| June 22, 2015 | Susquehanna International Holdings LLC | 0.70% | still open |
| June 17, 2015 | BNP Paribas SA | 0.95% | still open |
| June 16, 2015 | Capstone Volatility Master (Cayman) Limited | 0.88% | still open |
| June 12, 2015 | Susquehanna International Holdings LLC | 0.68% | still open |
| June 11, 2015 | Susquehanna International Holdings LLC | 0.70% | still open |
| June 9, 2015 | Susquehanna International Holdings LLC | 0.69% | still open |
| June 8, 2015 | Susquehanna International Holdings LLC | 0.70% | still open |
| June 5, 2015 | Susquehanna International Holdings LLC | 0.69% | still open |
| June 5, 2015 | Worldquant, LLC | 0.49% | still open |
| June 4, 2015 | Susquehanna International Holdings LLC | 0.71% | still open |
| June 2, 2015 | BNP Paribas SA | 0.87% | still open |
| May 27, 2015 | BNP Paribas SA | 0.78% | still open |
| May 27, 2015 | Worldquant, LLC | 0.50% | still open |
| May 26, 2015 | Capstone Volatility Master (Cayman) Limited | 0.73% | still open |
| May 22, 2015 | Susquehanna International Holdings LLC | 0.65% | still open |
| May 22, 2015 | Fore Research & Management, LP | 0.49% | still open |
| May 21, 2015 | Fore Research & Management, LP | 0.64% | still open |
| May 20, 2015 | Capstone Volatility Master (Cayman) Limited | 0.61% | still open |
| May 15, 2015 | Natixis SA | 0.88% | still open |
| May 11, 2015 | Capstone Volatility Master (Cayman) Limited | 0.50% | still open |
| May 6, 2015 | BNP Paribas SA | 0.54% | still open |
| April 17, 2015 | Susquehanna International Holdings LLC | 0.54% | still open |
| April 15, 2015 | Susquehanna International Holdings LLC | 0.76% | still open |
| April 14, 2015 | CQS (UK) LLP | 0.47% | still open |
| April 13, 2015 | Susquehanna International Holdings LLC | 0.68% | still open |
| April 10, 2015 | Susquehanna International Holdings LLC | 0.51% | still open |
| April 9, 2015 | Susquehanna International Holdings LLC | 0.49% | still open |
| April 7, 2015 | Susquehanna International Holdings LLC | 0.50% | still open |
| April 1, 2015 | Susquehanna International Holdings LLC | 0.49% | still open |
| March 31, 2015 | Susquehanna International Holdings LLC | 0.50% | still open |
| March 25, 2015 | Susquehanna International Holdings LLC | 0.49% | still open |
| March 23, 2015 | Susquehanna International Holdings LLC | 0.51% | still open |
| March 17, 2015 | Susquehanna International Holdings LLC | 0.49% | still open |
| March 11, 2015 | Susquehanna International Holdings LLC | 0.52% | still open |
| March 3, 2015 | Natixis SA | 0.56% | still open |
| February 27, 2015 | Susquehanna International Holdings LLC | 0.51% | still open |
| January 23, 2015 | Susquehanna International Holdings LLC | 0.49% | still open |
| January 22, 2015 | Susquehanna International Holdings LLC | 0.50% | still open |
| January 20, 2015 | Susquehanna International Holdings LLC | 0.49% | still open |
| January 15, 2015 | Susquehanna International Holdings LLC | 0.50% | still open |
| January 15, 2015 | Capstone Volatility Master (Cayman) Limited | 0.00% | still open |
| January 9, 2015 | CQS (UK) LLP | 0.92% | still open |
| December 3, 2014 | CQS (UK) LLP | 0.89% | still open |