X0202 4 2007-07-27 0000789019 MICROSOFT CORP MSFT 0000902012 GATES WILLIAM H III ONE MICROSOFT WAY REDMOND WA 98052 1 0 0 0 Common Stock 2007-07-27 4 S 0 731 29.94 D 890498605 D Common Stock 2007-07-27 4 S 0 50110 29.93 D 890448495 D Common Stock 2007-07-27 4 S 0 10 29.92 D 890448485 D Common Stock 2007-07-27 4 S 0 10 29.91 D 890448475 D Common Stock 2007-07-27 4 S 0 100 29.90 D 890448375 D Common Stock 2007-07-27 4 S 0 1000 29.89 D 890447375 D Common Stock 2007-07-27 4 S 0 13439 29.88 D 890433936 D Common Stock 2007-07-27 4 S 0 300 29.87 D 890433636 D Common Stock 2007-07-27 4 S 0 19700 29.86 D 890413936 D Common Stock 2007-07-27 4 S 0 15000 29.85 D 890398936 D Common Stock 2007-07-27 4 S 0 12250 29.83 D 890386686 D Common Stock 2007-07-27 4 S 0 8470 29.82 D 890378216 D Common Stock 2007-07-27 4 S 0 22271 29.81 D 890355945 D Common Stock 2007-07-27 4 S 0 24960 29.80 D 890330985 D Common Stock 2007-07-27 4 S 0 9473 29.79 D 890321512 D Common Stock 2007-07-27 4 S 0 11524 29.78 D 890309988 D Common Stock 2007-07-27 4 S 0 11275 29.77 D 890298713 D Common Stock 2007-07-27 4 S 0 30452 29.76 D 890268261 D Common Stock 2007-07-27 4 S 0 28234 29.75 D 890240027 D Common Stock 2007-07-27 4 S 0 91134 29.74 D 890148893 D Common Stock 2007-07-27 4 S 0 74517 29.73 D 890074376 D Common Stock 2007-07-27 4 S 0 46940 29.72 D 890027436 D Common Stock 2007-07-27 4 S 0 69523 29.71 D 889957913 D Common Stock 2007-07-27 4 S 0 173130 29.70 D 889784783 D Common Stock 2007-07-27 4 S 0 143147 29.69 D 889641636 D Common Stock 2007-07-27 4 S 0 87655 29.68 D 889553981 D Common Stock 2007-07-27 4 S 0 187970 29.67 D 889366011 D Common Stock 2007-07-27 4 S 0 97998 29.66 D 889268013 D Common Stock 2007-07-27 4 S 0 162262 29.65 D 889105751 D In addition, there are 425,066 shares owned by reporting person's spouse. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purposes. * Duly authorized under Special Power of Attorney appointing Michael Larson attorney-in-fact, dated February 3, 2006, by and on behalf of William H. Gates III, filed as Exhibit 99.1 to Cascade Investment, L.L.C.'s Amendment No. 2 to Schedule 13G with respect to Arch Capital Group Ltd. on March 7, 2006, SEC File No. 005-45257, and incorporated by reference herein. William H. Gates III By: /s/ Michael Larson*, Attorney-In-Fact 2007-07-31