X0202 4 2008-05-06 0000789019 MICROSOFT CORP MSFT 0000902012 GATES WILLIAM H III ONE MICROSOFT WAY REDMOND WA 98052 1 0 0 0 Common Stock 2007-11-20 5 G 0 24368890 0 D 833130446 D Common Stock 2008-05-06 4 S 0 10100 29.8500 D 833120346 D Common Stock 2008-05-06 4 S 0 18500 29.8400 D 833101846 D Common Stock 2008-05-06 4 S 0 600 29.8350 D 833101246 D Common Stock 2008-05-06 4 S 0 13300 29.8300 D 833087946 D Common Stock 2008-05-06 4 S 0 3500 29.8200 D 833084446 D Common Stock 2008-05-06 4 S 0 43400 29.8100 D 833041046 D Common Stock 2008-05-06 4 S 0 50000 29.8000 D 832991046 D Common Stock 2008-05-06 4 S 0 30000 29.7900 D 832961046 D Common Stock 2008-05-06 4 S 0 48000 29.7800 D 832913046 D Common Stock 2008-05-06 4 S 0 96600 29.7700 D 832816446 D Common Stock 2008-05-06 4 S 0 66300 29.7600 D 832750146 D Common Stock 2008-05-06 4 S 0 1200 29.7550 D 832748946 D Common Stock 2008-05-06 4 S 0 88800 29.7500 D 832660146 D Common Stock 2008-05-06 4 S 0 34900 29.7400 D 832625246 D Common Stock 2008-05-06 4 S 0 63872 29.7300 D 832561374 D Common Stock 2008-05-06 4 S 0 69381 29.7200 D 832491993 D Common Stock 2008-05-06 4 S 0 21120 29.7100 D 832470873 D Common Stock 2008-05-06 4 S 0 36027 29.7000 D 832434846 D Common Stock 2008-05-06 4 S 0 4400 29.6900 D 832430446 D Common Stock 2008-05-06 4 S 0 19050 29.6600 D 832411396 D Common Stock 2008-05-06 4 S 0 42401 29.6500 D 832368995 D Common Stock 2008-05-06 4 S 0 120200 29.6400 D 832248795 D Common Stock 2008-05-06 4 S 0 118349 29.6300 D 832130446 D Common Stock 2008-05-06 4 S 0 21801 29.6200 D 832108645 D Common Stock 2008-05-06 4 S 0 142957 29.6000 D 831965688 D Common Stock 2008-05-06 4 S 0 2842 29.5950 D 831962846 D Common Stock 2008-05-06 4 S 0 91139 29.5900 D 831871707 D Common Stock 2008-05-06 4 S 0 41261 29.5800 D 831830446 D Common Stock 2008-05-06 4 S 0 23620 29.5600 D 831806826 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 2008-05-08