X0202 4 2006-12-19 0 0000933974 BROOKS AUTOMATION INC BRKS 0001182721 LEPOFSKY ROBERT C/O BROOKS AUTOMATION, INC. 15 ELIZABETH DRIVE CHELMSFORD MA 01824 1 0 0 0 Stock Option (right to buy) 12.69 2006-12-19 4 D 0 25000 D 2012-10-26 Common Stock 25000 0 D Stock Option (right to buy) 13.03 2006-12-19 4 A 0 25000 A 2012-10-26 Common Stock 25000 25000 D Amendment of outstanding option resulting in deemed cancellation of option and grant of replacement option. The option was originally granted on October 26, 2005 and becomes exercisable with respect to 5,000 shares subject to the option every on each anniversary of the date of grant, begining on the first anniversary, such that the option becomes fully exercisable as of the fifth anniversary of the date of grant. No amount was paid upon grant of the option. The reporting person will pay for the shares upon exercise of the option pursuant to the price listed in Column 2. /s/ Thomas S. Grilk, attorney-in-fact for Robert J. Lepofsky 2006-12-21