X0306 4 2017-03-01 0001094348 Mattersight Corp MATR 0001197647 COXE TENCH 755 PAGE MILL ROAD, SUITE A-200 PALO ALTO CA 94304-1005 1 1 Common Stock 2017-03-01 4 P 0 100000.0000 3.4500 A 512171.0000 I By Trust (Trustees) Common Stock 88494.0000 D Common Stock 1283497.0000 I By Ltd Partnership (ROOS) Common Stock 1124042.0000 I By Ltd Partnership (SHV) Common Stock 73411.0000 I By Profit Sharing Plan Trust Shares purchased pursuant to a common stock purchase agreement dated February 23, 2017. Shares held by a trust of which the reporting person is a trustee. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest in the trust. The reporting person shares pecuniary interest in these shares with other individuals pursuant to a contractual relationship. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest in these shares. Shares held by a limited partnership of which the reporting person is a trustee of a trust which is the General Partner. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest therein. Shares held by Sutter Hill Ventures, a California Limited Partnership. The reporting person is a managing director and member of the management committe of the general partner of Sutter Hill Ventures, a California Limited Partnership. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest therein. Shares held by SHV Profit Sharing Plan, a retirement trust, for the benefit of the reporting person. /s/ Robert Yin, by power of attorney 2017-03-02