X0303 4 2011-06-10 1 0001317872 TomoTherapy Inc TOMO 0001242740 POWELL THOMAS E 1240 DEMING WAY MADISON WI 53717 0 1 0 0 CFO and Treasurer Common Stock 2011-06-10 4 D 0 348919 D 0 D Employee Stock Option (right to buy) 2.66 2011-06-10 4 D 0 75000 D 2015-06-22 Common Stock 75000 0 D Disposed of pursuant to the Agreement and Plan of Merger dated as of March 6, 2011 (the "Merger Agreement") among Accuray Incorporated ("Accuray"), Jaguar Acquisition, Inc. and TomoTherapy Incorporated ("TomoTherapy"), in exchange for a combination of $1,145,481.75 in cash and 59,928 shares of Accuray common stock based on $3.15 per share and 0.1648 shares of Accuray Common Stock for each TomoTherapy share held. These stock options vest with 25,000 shares vesting on 6/22/2011, 25,000 shares vesting on 6/22/2012 and 25,000 shares vesting on 6/22/2013. These stock options were cancelled and exchanged for 46,110 new stock options of Accuray with the same vesting terms, based on a conversion ratio of 0.6148, which is (A)(i) $3.15 divided by (ii) $7.00, the volume weighted average of the daily closing price of Accuray for the five (5) consecutive trading days preceding and including June 9, 2011, plus (B) 0.1648 pursuant to the Merger Agreement, at a new exercise price of $4.33, based on the previous exercise price divided by the same conversion ratio. /s/ Thomas E. Powell 2011-06-13