X0303 4 2010-12-14 0 0000022252 COMARCO INC CMRO 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 2010-12-14 4 S 0 6993 0.6 D 775379 I By Limited Partnerships Common Stock 2010-12-15 4 S 0 48211 0.5513 D 727168 I By Limited Partnerships This is a weighted average price. 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, LP (QP), Special Situations Cayman Fund, L.P. (Cayman), Special Situations Technology Fund, LP (Tech) and Special Situations Technology Fund II, L.P. (Tech II), respectively. 453,000 shares of Common Stock are held by QP and 274,168 shares of Common Stock are held by Cayman. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, and Cayman is limited to the extent of his pecuniary interest. Austin W. Marxe 2010-12-16 David M. Greenhouse 2010-12-16