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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
811156	Cms Energy Corp	CMS	Electric & Other Services Combined (4931)	382726431

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1180043	G David Mengebier	One Energy Plaza Jackson MI 49201	Senior Vice President	No	No	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	2011-08-08	8,240	$0.00	109,331	No	4	A	Direct
Common Stock	Disposition	2011-08-08	9,027	$18.27	100,304	No	4	F	Direct
Common Stock	Disposition	2011-08-09	4,000	$17.60	96,304	No	4	S	Direct

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

Footnotes

Shares of Common Stock of CMS Energy Corporation acquired as a result of CMS exceeding certain performance criteria established under the 2008 Restricted Stock award granted to the reporting person in accordance with the provisions of the CMS Performance Incentive Stock Plan.
The total holdings reflect an adjustment of 52 additional shares of Common Stock of CMS Energy Corporation purchased by CMS on behalf of the reporting person as a result of his participation in the CMS Stock Purchase Plan, and an adjustment of 532 additional shares of Restricted Stock purchased on behalf of the reporting person as a result of an automatic acquisition of Restricted Stock in lieu of cash dividends pursuant to the terms of the award granted to the reporting person in accordance with the provisions of the CMS Performance Incentive Stock Plan.