X0202 4 2006-08-03 0000789019 MICROSOFT CORP MSFT 0000902012 GATES WILLIAM H III ONE MICROSOFT WAY REDMOND WA 98052 1 1 0 0 Chairman of the Board Common Stock 2006-08-03 4 S 0 2700 24.47 D 965496636 D Common Stock 2006-08-03 4 S 0 2100 24.46 D 965494536 D Common Stock 2006-08-03 4 S 0 3462 24.45 D 965491074 D Common Stock 2006-08-03 4 S 0 13995 24.43 D 965477079 D Common Stock 2006-08-03 4 S 0 143643 24.42 D 965333436 D Common Stock 2006-08-03 4 S 0 77100 24.41 D 965256336 D Common Stock 2006-08-03 4 S 0 91113 24.40 D 965165223 D Common Stock 2006-08-03 4 S 0 284152 24.39 D 964881071 D Common Stock 2006-08-03 4 S 0 173579 24.38 D 964707492 D Common Stock 2006-08-03 4 S 0 154756 24.37 D 964552736 D Common Stock 2006-08-03 4 S 0 121900 24.36 D 964430836 D Common Stock 2006-08-03 4 S 0 69600 24.35 D 964361236 D Common Stock 2006-08-03 4 S 0 99432 24.34 D 964261804 D Common Stock 2006-08-03 4 S 0 25100 24.33 D 964236704 D Common Stock 2006-08-03 4 S 0 17700 24.32 D 964219004 D Common Stock 2006-08-03 4 S 0 38268 24.31 D 964180736 D Common Stock 2006-08-03 4 S 0 36800 24.30 D 964143936 D Common Stock 2006-08-03 4 S 0 41800 24.29 D 964102136 D Common Stock 2006-08-03 4 S 0 131664 24.28 D 963970472 D Common Stock 2006-08-03 4 S 0 106700 24.27 D 963863772 D Common Stock 2006-08-03 4 S 0 65336 24.26 D 963798436 D Common Stock 2006-08-03 4 S 0 33700 24.25 D 963764736 D Common Stock 2006-08-03 4 S 0 35900 24.24 D 963728836 D Common Stock 2006-08-03 4 S 0 22000 24.23 D 963706836 D Common Stock 2006-08-03 4 S 0 27900 24.22 D 963678936 D Common Stock 2006-08-03 4 S 0 24600 24.21 D 963654336 D Common Stock 2006-08-03 4 S 0 5125 24.20 D 963649211 D Common Stock 2006-08-03 4 S 0 14640 24.19 D 963634571 D Common Stock 2006-08-03 4 S 0 33935 24.18 D 963600636 D Common Stock 2006-08-03 4 S 0 51100 24.17 D 963549536 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 purpose 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 2006-08-07