X0202 4 2007-05-03 0000789019 MICROSOFT CORP MSFT 0000902012 GATES WILLIAM H III ONE MICROSOFT WAY REDMOND WA 98052 1 0 0 0 Common Stock 2007-05-03 4 S 0 4700 30.985 D 912494636 D Common Stock 2007-05-03 4 S 0 5852 30.983 D 912488784 D Common Stock 2007-05-03 4 S 0 5102 30.982 D 912483682 D Common Stock 2007-05-03 4 S 0 544488 30.980 D 911939194 D Common Stock 2007-05-03 4 S 0 5103 30.976 D 911934091 D Common Stock 2007-05-03 4 S 0 26828 30.975 D 911907263 D Common Stock 2007-05-03 4 S 0 24500 30.973 D 911882763 D Common Stock 2007-05-03 4 S 0 1198305 30.970 D 910684458 D Common Stock 2007-05-03 4 S 0 7200 30.967 D 910677258 D Common Stock 2007-05-03 4 S 0 16280 30.966 D 910660978 D Common Stock 2007-05-03 4 S 0 45285 30.965 D 910615693 D Common Stock 2007-05-03 4 S 0 18200 30.963 D 910597493 D Common Stock 2007-05-03 4 S 0 9600 30.962 D 910587893 D Common Stock 2007-05-03 4 S 0 3600 30.961 D 910584293 D Common Stock 2007-05-03 4 S 0 678738 30.960 D 909905555 D Common Stock 2007-05-03 4 S 0 8870 30.955 D 909896685 D Common Stock 2007-05-03 4 S 0 6600 30.952 D 909890085 D Common Stock 2007-05-03 4 S 0 9400 30.951 D 909880685 D Common Stock 2007-05-03 4 S 0 274378 30.950 D 909606307 D Common Stock 2007-05-03 4 S 0 9100 30.948 D 909597207 D Common Stock 2007-05-03 4 S 0 19754 30.945 D 909577453 D Common Stock 2007-05-03 4 S 0 6200 30.942 D 909571253 D Common Stock 2007-05-03 4 S 0 212517 30.940 D 909358736 D Common Stock 2007-05-03 4 S 0 5100 30.938 D 909353636 D Common Stock 2007-05-03 4 S 0 8219 30.935 D 909345417 D Common Stock 2007-05-03 4 S 0 5400 30.934 D 909340017 D Common Stock 2007-05-03 4 S 0 188281 30.930 D 909151736 D Common Stock 2007-05-03 4 S 0 11500 30.925 D 909140236 D Common Stock 2007-05-03 4 S 0 54200 30.920 D 909086036 D Common Stock 2007-05-03 4 S 0 2299 30.915 D 909083737 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 2007-05-07