X0202 4 2006-09-28 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 Common Stock 2006-09-28 4 J 0 1192913 1.61 A 4339707 I By Limited Partnerships Warrants 1.61 2006-09-28 4 J 0 1192913 1.61 A 2002-08-16 2007-08-16 Common Stock 1192913 0 I By Limited Partnerships Warrants 3.25 2006-09-28 4 P 0 235004 3.25 A 2006-09-28 2011-09-28 Common Stock 235004 235004 I By Limited Partnerships Exercised 1,192,913 warrants for 1,192,913 Common Stock. 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. 2,266,850 shares of Common Stock, 128,299 Wts are held by QP, 728,203 shares of Common Stock, 41,035 Wts are held by Cayman and 1,109,650 shares of Common Stock, 65,670 Wts 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 2006-10-02 David M. Greenhouse 2006-10-02