Exhibit 11.01 BROOKS AUTOMATION, INC. Computation of Net Income Per Share (in thousands, except per share amounts) Year Ended September 30, 1997 1996 1995 Net income applicable to common shares............................................... $ 806 $8,497 $4,945 ====== ====== ====== Weighted average shares outstanding: Common stock.................................................................. 7,681 7,503 5,758 Assumed conversion of stock options and warrants........................................................ 754 696 806 Shares issuable pursuant to SAB 83 using the treasury stock method............................................. - - 239 ------ ------ ------ Total shares........................................................... 8,435 8,199 6,803 ====== ====== ====== Net income per share.......................................................... $ 0.10 $ 1.04 $ .73 ====== ====== ======