X0202 3 2005-04-05 0 0000722567 CAPRIUS INC CAPS 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M 153 E 53RD ST 55TH FL NEW YORK NY 10022 0 0 1 0 Convertible Preferred 2.9 2005-04-05 2005-04-05 Common Stock 1034483 I By Limited Partnerships Warrants A 0.28 2005-05-16 2010-02-15 Common Stock 310345 I By Limited Partnerships Mandatory conversion. 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 Private Equity Fund, LP (PE). 30,000 shares of Pfd Stock converted into 1,034,483 shares of Common Stock, 6,206,896 Wts A convertible into 310,345 shares of Common Stock and 2,758,620 Wts B, not yet Convertible, are held by PE. The interest of Marxe and Greenhouse in the shares of Common Stock owned by PE is limited to the extent of his pecuniary interest. Austin W. Marxe 2005-04-29 David M. Greenhouse 2005-04-29