WASTE MANAGEMENT INC — Director's Dealing 2010

Dec 22, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WASTE MANAGEMENT INC (WM)
CIK: 0000823768
Period of Report: 2010-12-21

Reporting Person: TREVATHAN JAMES E JR (Senior Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-12-21	Common Stock	M	100000.0000	$24.0100	Acquired	185905.4329	Direct
2010-12-21	Common Stock	F	78654.0000	$36.3100	Disposed	107251.4329	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-12-21	Stock Option (Right to Buy)	$24.0100	M	100000.0000	Disposed	2011-03-01	Common Stock (100000.0000)	Direct

Footnotes

F1: Stock option granted pursuant to Waste Management, Inc. 2000 Stock Incentive Plan. The stock option originally vested in 25% annual increments commencing on the first anniversary of the date of the grant. The Compensation Committee of the Board of Directors accelerated the vesting of the Company's outstanding options effective December 28, 2005.