X0304 4 2011-09-23 0 0000350868 ITERIS, INC. ITI 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M C/O SPECIAL SITUATIONS FUNDS 527 MADISON AVENUE, SUITE 2600 NEW YORK NY 10022 0 0 1 0 Warrants 3.25 2011-09-28 4 J 0 235004 0 D 2006-09-28 2011-09-28 Common Stock 0 0 I By Limited Partnerships Warrants expired on 9/28/2011. This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP), Special Situations Cayman Fund, L.P. (Cayman) and Special Situations Private Equity Fund, LP (PE), respectively. 0 Warrants are held by QP, 0 Warrants are held by Cayman and 0 Warrants are held by PE. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, Cayman and PE is limited to the extent of his pecuniary interest. Austin W. Marxe 2011-09-30 David M. Greenhouse 2011-09-30