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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
823768	Waste Management Inc	WM	Refuse Systems (4953)	731309529

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1028870	Jr V Carl Rush	1001 Fannin Street Suite 4000 Houston TX 77002	Sr. Vp - Organic Growth	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2012-02-16	10,500	$27.88	14,863	No	4	M	Direct
Common Stock	Acquisiton	2012-02-16	3,886	$34.45	18,749	No	4	A	Direct
Common Stock	Disposition	2012-02-16	1,111	$34.45	17,638	No	4	F	Direct
Common Stock	Disposition	2012-02-16	9,076	$34.18	8,562	No	4	F	Direct
Common Stock	Disposition	2012-02-17	192	$34.64	8,370	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	A	Direct
No	4	F	Direct
No	4	F	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Disposition	2012-02-16	10,500	$27.88	10,500	$27.88

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2003-03-07	2012-03-07	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	8,519	Indirect	By 401(k) Plan

Footnotes

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.
Settlement of performance share award granted under Waste Management, Inc. 2004 Stock Incentive Plan.
Sale of shares in accordance with Rule 10b5-1.