30 Treasury shares audited information (XLS:) Download Quantity in CHF thousands As at 1 January 2015 1'978'202 168'584 Purchases 0 0 Disposals 0 0 As at 31 December 2015 1'978'202 168'584 Purchases 0 0 Disposals –18'964 –1'539 As at 31 December 2016 1'959'238 167'045