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If the form is filed by more than one reporting person, see Instruction 5(b)(v). |
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Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). |
(1) |
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), Special Situations Private Equity Fund, LP (PE) and Special Situations Life Sciences Fund, L.P. (LS). 2,467,785 shares of Common Stock are owned by QP, 750,646 shares of Common Stock are owned by Cayman, 157,403 shares of Common Stock are owned by PE and 1,175,131 shares of Common Stock are owned by LS. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, Cayman, PE and LS are limited to the extent of his pecuniary interest. |
(2) |
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 Life Sciences Fund, L.P. (LS). 560,000 warrants are owned by QP, 170,000 warrants are owned by Cayman and 270,000 warrants are owned by LS. The interest of Marxe and Greenhouse in the shares of Warrants owned by QP, Cayman and LS are limited to the extent of his pecuniary interest. |