MICROSOFT CORP — Director's Dealing 2010

Dec 16, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MICROSOFT CORP (MSFT)
CIK: 0000789019
Period of Report: 2010-12-14

Reporting Person: SINOFSKY STEVEN J (President, Windows Division)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-12-14	Common Stock	M	44451	$25.1438	Acquired	737958	Direct
2010-12-14	Common Stock	S	44451	$27.316	Disposed	693507	Direct
2010-12-16	Common Stock	M	44444	$25.1438	Acquired	737951	Direct
2010-12-16	Common Stock	S	44444	$27.8087	Disposed	693507	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-12-14	Employee Stock Option (Right to Buy)	$25.1438	M	44451	Disposed	2011-02-20	Common Stock (44451)	Direct
2010-12-16	Employee Stock Option (Right to Buy)	$25.1438	M	44444	Disposed	2011-02-20	Common Stock (44444)	Direct

Footnotes

F1: The exercise of the stock option and the sale of the underlying shares were made under a 10b5-1 plan previously adopted by the reporting person.

F2: This transaction was executed in multiple trades at prices ranging from $27.265 to $27.39. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

F3: This transaction was executed in multiple trades at prices ranging from $27.79 to $27.82. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.