| TFG Asset Management UK LLP | 0.49% | 7 Feb 2017 | 
        
                
                    | TFG Asset Management UK LLP | 0.57% | 17 Jan 2017 | 
        
                
                    | TFG Asset Management UK LLP | 0.68% | 15 Jan 2016 | 
        
                
                    | TFG Asset Management UK LLP | 0.78% | 27 Nov 2015 | 
        
                
                    | TFG Asset Management UK LLP | 0.89% | 17 Nov 2015 | 
        
                
                    | Tenor Capital Management Company L.P. | 0.47% | 14 Oct 2015 | 
        
                
                    | Tenor Capital Management Company L.P. | 0.57% | 13 Oct 2015 | 
        
                
                    | TFG Asset Management UK LLP | 0.95% | 13 Oct 2015 | 
        
                
                    | Tenor Capital Management Company L.P. | 0.79% | 7 Oct 2015 | 
        
                
                    | Basso Capital Management, L.P. | 0.44% | 6 Oct 2015 | 
        
                
                    | TFG Asset Management UK LLP | 1.08% | 2 Oct 2015 | 
        
                
                    | TFG Asset Management UK LLP | 1.15% | 30 Sep 2015 | 
        
                
                    | Tenor Capital Management Company L.P. | 0.88% | 29 Sep 2015 | 
        
                
                    | TFG Asset Management UK LLP | 1.43% | 18 Sep 2015 | 
        
                
                    | TFG Asset Management UK LLP | 1.57% | 17 Sep 2015 | 
        
                
                    | TFG Asset Management UK LLP | 1.60% | 4 Mar 2015 | 
        
                
                    | Basso Capital Management, L.P. | 0.58% | 20 Feb 2015 | 
        
                
                    | Basso Capital Management, L.P. | 0.36% | 22 Dec 2014 | 
        
                
                    | Basso Capital Management, L.P. | 0.98% | 18 Dec 2014 | 
        
                
                    | Basso Capital Management, L.P. | 1.35% | 17 Dec 2014 | 
        
                
                    | Basso Capital Management, L.P. | 1.47% | 15 Dec 2014 | 
        
                
                    | TFG Asset Management UK LLP | 1.51% | 12 Dec 2014 | 
        
                
                    | Basso Capital Management, L.P. | 1.76% | 11 Dec 2014 | 
        
                
                    | TFG Asset Management UK LLP | 1.42% | 10 Dec 2014 | 
        
                
                    | Basso Capital Management, L.P. | 2.11% | 9 Dec 2014 | 
        
                
                    | TFG Asset Management UK LLP | 1.22% | 8 Dec 2014 | 
        
                
                    | Basso Capital Management, L.P. | 2.30% | 5 Dec 2014 | 
        
                
                    | TFG Asset Management UK LLP | 1.12% | 4 Dec 2014 | 
        
                
                    | TFG Asset Management UK LLP | 1.02% | 2 Dec 2014 | 
        
                
                    | Basso Capital Management, L.P. | 2.62% | 14 Nov 2014 | 
        
                
                    | Basso Holdings Ltd. | 0.00% | 14 Nov 2014 | 
        
                
                    | Basso Holdings Ltd. | 2.65% | 6 Mar 2014 | 
        
                
                    | Basso Holdings Ltd. | 2.15% | 3 Feb 2014 | 
        
                
                    | Tenor Capital Management Company L.P. | 0.92% | 5 Dec 2013 | 
        
                
                    | Basso Holdings Ltd. | 2.00% | 8 Nov 2013 | 
        
                
                    | TFG Asset Management UK LLP | 0.90% | 7 Nov 2013 | 
        
                
                    | Basso Holdings Ltd. | 1.98% | 6 Nov 2013 | 
        
                
                    | TFG Asset Management UK LLP | 0.80% | 4 Nov 2013 | 
        
                
                    | TFG Asset Management UK LLP | 0.73% | 30 Oct 2013 | 
        
                
                    | Basso Holdings Ltd. | 1.74% | 22 Oct 2013 | 
        
                
                    | Basso Holdings Ltd. | 1.60% | 15 Oct 2013 | 
        
                
                    | Basso Holdings Ltd. | 1.50% | 16 Sep 2013 | 
        
                
                    | Tenor Capital Management Company L.P. | 0.89% | 5 Sep 2013 | 
        
                
                    | TFG Asset Management UK LLP | 0.60% | 21 Feb 2013 | 
        
                
                    | TFG Asset Management UK LLP | 0.50% | 13 Feb 2013 |