X0101 42003-05-30 0000789019 MICROSOFT CORP MSFT 0000902015 BALLMER STEVEN A 1100Chief Executive OfficerCommon Stock2003-05-304S02330024.54D415496322DCommon Stock2003-05-304S080024.55D415495522DCommon Stock2003-05-304S05610024.56D415439422DCommon Stock2003-05-304S07620024.57D415363222DCommon Stock2003-05-304S0374624.59D415359476DCommon Stock2003-05-304S01340024.6D415346076DCommon Stock2003-05-304S01819824.61D415327878DCommon Stock2003-05-304S023818724.62D415089691DCommon Stock2003-05-304S022273824.63D414866953DCommon Stock2003-05-304S021360024.64D414653353DCommon Stock2003-05-304S055610924.66D413692116DCommon Stock2003-05-304S016480424.67D413527312DCommon Stock2003-05-304S021291724.68D413314395DCommon Stock2003-05-304S021368624.69D413100709DCommon Stock2003-05-304S037984424.7D412720865DCommon Stock2003-05-304S023081424.71D412490051DCommon Stock2003-05-304S017793824.72D412312113DCommon Stock2003-05-304S042582624.73D411886287DCommon Stock2003-05-304S08169424.74D411804593DCommon Stock2003-05-304S014804924.75D411656544DCommon Stock2003-05-304S012766124.76D411528883DCommon Stock2003-05-304S08523124.77D411443652DCommon Stock2003-05-304S04812524.78D411395527DCommon Stock2003-05-304S05852424.79D411337003DCommon Stock2003-05-304S012152124.8D411215482DCommon Stock2003-05-304S07130024.81D411144182DCommon Stock2003-05-304S02348924.82D411120693DThis sale was effected pursuant to a 10b5-1 sales plan adopted by the reporting person.This Form 4 is the first of two forms to report all May 30, 2003 transactions for the reporting person.John A. Seethoff, Attorney-in-Fact for Steven A. Ballmer2003-06-02