X0202 3 2007-10-16 0 0001230355 TRANS1 INC TSON 0001317308 ATV Associates VII, L.L.C. C/O ADVANCED TECHNOLOGY VENTURES 1000 WINTER STREET, SUITE 3700 WALTHAM MA 02451 0 0 1 0 0001138942 ADVANCED TECHNOLOGY VENTURES VII LP C/O ADVANCED TECHNOLOGY VENTURES 1000 WINTER STREET, SUITE 3700 WALTHAM MA 02451 0 0 1 0 0001294525 Advanced Technology Ventures VII(B), L.P. C/O ADVANCED TECHNOLOGY VENTURES 1000 WINTER STREET, SUITE 3700 WALTHAM MA 02451 0 0 1 0 0001294527 Advanced Technology Ventures VII(C), L.P. C/O ADVANCED TECHNOLOGY VENTURES 1000 WINTER STREET, SUITE 3700 WALTHAM MA 02451 0 0 1 0 0001294513 ATV Entrepreneurs VII, L.P. C/O ADVANCED TECHNOLOGY VENTURES 1000 WINTER STREET, SUITE 3700 WALTHAM MA 02451 0 0 1 0 Series B Convertible Preferred Stock 0.00 Common Stock 1531339 I By Advanced Technology Ventures VII, L.P. Series C Convertible Preferred Stock 0.00 Common Stock 895968 I By Advanced Technology Ventures VII, L.P. Series B Convertible Preferred Stock 0.00 Common Stock 61452 I By Advanced Technology Ventures VII (B), L.P. Series C Convertible Preferred Stock 0.00 Common Stock 35955 I By Advanced Technology Ventures VII (B), L.P. Series B Convertible Preferred Stock 0.00 Common Stock 29538 I By Advanced Technology Ventures VII (C), L.P. Series C Convertible Preferred Stock 0.00 Common Stock 17282 I By Advanced Technology Ventures VII (C), L.P. Series B Convertible Preferred Stock 0.00 Common Stock 9125 I By ATV Entrepreneurs VII, L.P. Series C Convertible Preferred Stock 0.00 Common Stock 5338 I By ATV Entrepreneurs VII, L.P. The reported securities are convertible at any time at the option of Advanced Technology Ventures VII, L.P., but automatically convert into shares of Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering, which is estimated to occur on or about October 22, 2007. Not applicable. The reported securities are owned directly by Advanced Technology Ventures VII, L.P. and indirectly by ATV Associates VII, L.L.C., as general partner of Advanced Technology Ventures VII, L.P. ATV Associates VII, L.L.C. disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein. The reported securities are convertible at any time at the option of Advanced Technology Ventures VII (B), L.P., but automatically convert into shares of Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering, which is estimated to occur on or about October 22, 2007. The reported securities are owned directly by Advanced Technology Ventures VII (B), L.P. and indirectly by ATV Associates VII, L.L.C., as general partner of Advanced Technology Ventures VII (B), L.P. ATV Associates VII, L.L.C. disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein. The reported securities are convertible at any time at the option of Advanced Technology Ventures VII (C), L.P., but automatically convert into shares of Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering, which is estimated to occur on or about October 22, 2007. The reported securities are owned directly by Advanced Technology Ventures VII (C), L.P. and indirectly by ATV Associates VII, L.L.C., as general partner of Advanced Technology Ventures VII (C), L.P. ATV Associates VII, L.L.C. disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein. The reported securities are convertible at any time at the option of ATV Entrepreneurs VII, L.P., but automatically convert into shares of Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering, which is estimated to occur on or about October 22, 2007. The reported securities are owned directly by ATV Entrepreneurs VII, L.P. and indirectly by ATV Associates VII, L.L.C., as general partner of ATV Entrepreneurs VII, L.P. ATV Associates VII, L.L.C. disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein. The Date of Event is based upon the date of effectiveness of the Issuer's Registration Statement on Form S-1 filed in connection with the Issuer's initial public offering, which is estimated to close on or about October 22, 2007. See Exhibit 99.1 - Joint Filer Information. EXHIBIT LIST: Exhibit 99.1 Joint Filer Information /s/ Michael A. Carusi 2007-10-16 Michael A. Carusi 2007-10-16 Michael A. Carusi 2007-10-16 Michael A. Carusi 2007-10-16 Michael A. Carusi 2007-10-16