WASTE MANAGEMENT INC — Director's Dealing 2013

Mar 1, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WASTE MANAGEMENT INC (WM)
CIK: 0000823768
Period of Report: 2013-02-27

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-27	Common Stock	M	120000.0000	$19.6100	Acquired	256987.1082	Direct
2013-02-27	Common Stock	F	83549.0000	$36.5050	Disposed	173438.1082	Direct
2013-02-28	Common Stock	S	3850.0000	$36.9504	Disposed	169588.1082	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-02-27	Stock Option (Right to Buy)	$19.6100	M	120000.0000	Disposed	2013-03-06	Common Stock (120000.0000)	Direct

Footnotes

F1: This transaction was executed in multiple trades at prices ranging from $36.94 to $36.97. The price reported above reflects the weighted average sale 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 transaction was effected.

F2: 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.