UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported) August 9, 2016

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On August 9, 2016, CMS Energy Corporation (“CMS Energy”) and Consumers Energy Company (“Consumers”) announced the following management change.

As of September 1, 2016, Venkat Dhenuvakonda Rao will assume the position of senior vice president, strategy and business planning.   Mr. Rao, age 45, was elected as vice president in 2012. From 2012-2015, he served as vice president – treasurer and financial planning. Since 2015, he served as vice president – treasurer, financial planning and investor relations.   Between 2000 and 2012, Mr. Rao served in various roles of increasing responsibilities at CMS Energy and Consumers, including executive director of financial planning and forecasting from 2009-2012.

In connection with Mr. Rao’s appointment, he will receive a grant of 7,500 shares of restricted stock which cliff vests with 5 years of service, effective September 1, 2016.

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrants have duly caused this report to be signed on their behalf by the undersigned hereunto duly authorized.

3