X0204 3 2011-12-19 0 0001094348 Mattersight Corp MATR 0000889232 INVESTOR AB C/O INVESTOR GROWTH CAPITAL, INC. ONE ROCKEFELLER PLAZA, SUITE 2801 NEW YORK NY 10020 0 0 1 0 Common Stock, $0.01 par value per share 2364209 I See footnotes As of December 19, 2011, IGC Fund VI, L.P., a Delaware limited partnership (the "Fund"), holds 2,364,209 common shares, $0.01 par value per share (the "Common Shares"), of Mattersight Corporation, a Delaware corporation (the "Company"). Investor AB, a limited liability company incorporated under the laws of Sweden (the "Reporting Person"), through one or more intermediate entities, possesses the sole power to vote and the sole power to direct the disposition of all securities of the Company held by the Fund. A senior executive employee of an affiliate of the Reporting Person, Mr. Philip R. Dur, is a director of the Company and, as of the date of the filing of this Form 3, Mr. Dur holds options to acquire 50,000 Common Shares. Mr. Dur separately files statements pursuant to Section 16 of the Securities Exchange Act of 1934 (the "Act") with respect to such options. The Reporting Person's interest in all of the Company's securities is limited to the extent of its pecuniary interest in such securities, if any, and neither the filing of this statement nor any of its contents shall be deemed to constitute an admission by the Reporting Person or any other person/entity that he/she or it was or is the beneficial owner of any of the Company's securities for purposes of Section 16 of the Act, or for any other purpose. INVESTOR AB, By: /s/ Michael V. Oporto, Authorized Signatory, and /s/ Stephen Campe, Authorized Signatory 2011-12-27