4 2003-07-09 0 0000893821 ATTUNITY LTD attu 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M 0 0 1 0 Common Stock 2003-07-09 4 S 0 8000 1.333 D 3474800 I By Limited Partnership 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 Cayman Fund, L.P. (Cayman), Special Situations Private Equity Fund, LP (PE), Special Situations Technology Fund, L.P. (Tech) and Special Situations Technology II, L.P. (Tech II), respectively. 368,400 shares of Common Stock, 288,450 Wts A and 96,150 Wts B are held by Cayman, 893,300 shares of Common Stock, 692,250 Wts A and 230,750 Wts B are held by PE, 72,576 shares of Common Stock, 56,643 Wts A and 18,881 Wts B are held by Tech and 371,424 shares of Common Stock, 289,482 Wts A and 96,494 Wts B are held by Tech II. The interest of Marxe and Greenhouse in the shares of Common Stock owned by Cayman, PE, Tech, and Tech II is limited to the extent of his pecuniary interest. Austin W. Marxe 2003-07-10 David M. Greenhouse 2003-07-10