X0306 4 2012-08-01 0 0001493761 Parametric Sound Corp PAMT 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 2012-08-01 4 S 0 4550 10 D 672312 I By Limited Partnerships Common Stock 2012-08-02 4 S 0 23104 10.2194 D 649208 I By Limited Partnerships Common Stock 2012-08-03 4 S 0 8700 11.1488 D 640508 I By Limited Partnership Common Stock 2012-08-06 4 S 0 2826 11.0685 D 637682 I By Limited Partnerships This is a weogjted 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 Private Equity Fund, L.P. (PE), Special Situations Technology Fund, LP (TN) and Special Situations Technology Fund II, L.P. (T2), respectively. 291,944 shares of Common Stock are held by QP, 101,946 shares of Common Stock are held by PE, 33,053 shares of Common Stock are held by TN and 210,739 shares of Common Stock are held by T2. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, PE, TN and T2 is limited to the extent of his pecuniary interest. Austin W. Marxe 2012-08-06 David M. Greenhouse 2012-08-06