X0202 4 2006-05-04 0 0001035267 INTUITIVE SURGICAL INC ISRG 0001280629 MCNAMARA JEROME J 950 KIFER ROAD SUNNYVALE CA 94086 0 1 0 0 Sr. Vice President Common Stock 2006-05-04 4 M 0 4731 11.74 A 6064 D Common Stock 2006-05-04 4 M 0 4433 18.50 A 10497 D Common Stock 2006-05-04 4 M 0 3126 18.50 A 13623 D Common Stock 2006-05-04 4 M 0 2084 19.68 A 15707 D Common Stock 2006-05-04 4 M 0 626 47.86 A 16333 D Common Stock 2006-05-04 4 S 0 5605 125.00 D 10728 D Common Stock 2006-05-04 4 S 0 700 125.01 D 10028 D Common Stock 2006-05-04 4 S 0 765 125.02 D 9263 D Common Stock 2006-05-04 4 S 0 400 125.03 D 8863 D Common Stock 2006-05-04 4 S 0 100 125.04 D 8763 D Common Stock 2006-05-04 4 S 0 50 125.05 D 8713 D Common Stock 2006-05-04 4 S 0 2200 125.20 D 6513 D CommonStock 2006-05-04 4 S 0 100 125.22 D 6413 D Common Stock 2006-05-04 4 S 0 100 125.23 D 6313 D Common Stock 2006-05-04 4 S 0 900 125.27 D 5413 D Common Stock 2006-05-04 4 S 0 100 125.28 D 5313 D Common Stock 2006-05-04 4 S 0 100 125.36 D 5213 D Common Stock 2006-05-04 4 S 0 400 125.38 D 4813 D Common Stock 2006-05-04 4 S 0 200 125.39 D 4613 D Common Stock 2006-05-04 4 S 0 100 125.44 D 4513 D Common Stock 2006-05-04 4 S 0 100 125.45 D 4413 D Common Stock 2006-05-04 4 S 0 100 125.47 D 4313 D CommonStock 2006-05-04 4 S 0 500 125.50 D 3813 D Common Stock 2006-05-04 4 S 0 200 125.52 D 3613 D Common Stock 2006-05-04 4 S 0 400 125.54 D 3213 D Common Stock 2006-05-04 4 S 0 500 125.60 D 2713 D Common Stock 2006-05-04 4 S 0 21 125.61 D 2692 D Common Stock 2006-05-04 4 S 0 1200 125.62 D 1492 D Common Stock 2006-05-04 4 S 0 59 125.63 D 1433 D Common Stock 2006-05-04 4 S 0 100 125.64 D 1333 D Stock Option 11.74 2006-05-04 4 M 0 4731 11.74 A 2013-02-06 Common Stock 4731 7813 D Stock Option 18.50 2006-05-04 4 M 0 4433 18.50 A 2014-02-13 Common Stock 4433 16042 D Stock Option 18.50 2006-05-04 4 M 0 3126 18.50 A 2012-02-01 Common Stock 3126 0 D Stock Option 19.68 2006-05-04 4 M 0 2084 19.68 A 2012-03-25 Common Stock 2084 0 D Stock Option 47.86 2006-05-04 4 M 0 626 47.86 A 2015-02-11 Common Stock 626 27199 D The total reflects the additional purchase of 108 shares made pursuant to the 2000 Employee Stock Purchase Plan Exercised shares are fully exercisable; remaining option shares vested at 1/48th of total grant per month. This number reflects the correct number of shares that remain subject to this option after taking into account the transaction being reported herein. Report filed on 11/3/2005 inadvertenly reflected only the number of shares then exercisable pursurant to the option rather than the total number of shares that remained subject to the option at that time. All share option grants are vested. /s/Jerome McNamara 2006-05-08