X0306 4 2015-05-14 0 0001094348 Mattersight Corp MATR 0001309440 Danson Christopher Joseph 200 S. WACKER DRIVE, SUITE 820 CHICAGO IL 60606 0 1 0 0 Executive VP, Delivery Common Stock 2015-05-14 4 S 0 5894 6.2008 D 132844 D Common Stock 2015-05-15 4 S 0 15724 6.1194 D 117120 D The sales price on the transaction date was reported using the average weighted sales price. The price for all sales on the transaction date ranged from $6.16 to $6.25. The reporting person undertakes to provide to Mattersight Corporation, any security holder of Mattersight Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. Includes 1,194 shares of Common Stock acquired on 3/31/2015 through the Mattersight Corporation 1999 Employee Stock Purchase Plan. The sales price on the transaction date was reported using the average weighted sales price. The price for all sales on the transaction date ranged from $6.08 to $6.17. The reporting person undertakes to provide to Mattersight Corporation, any security holder of Mattersight Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price. Christine R. Carsen, Attorney-in-fact 2015-05-18