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) May 15, 2025

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:

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

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

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

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

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).  Emerging growth company:  CMS Energy Corporation ¨        Consumers Energy Company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  CMS Energy Corporation ¨  Consumers Energy Company ¨

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

Item 8.01 Other Events.

On May 15, 2025, CMS Energy Corporation (“CMS Energy”) announced a new corporate organizational structure to support the company’s operational transformation and long-term company strategy. The new structure, including new leadership roles and business units, will take effect on July 1, 2025.

Tonya L. Berry will be named CMS Energy and Consumers Energy Company’s (“Consumers”) executive vice president and chief operating officer. Berry’s biographical information and CMS Energy’s and Consumers’ executive compensation program and other relevant information can be found in the “Information About CMS Energy’s and Consumers’ Executive Officers” section of the CMS Energy Form 10-K filed February 11, 2025 and the CMS Energy Proxy Statement filed March 20, 2025, respectively, which are incorporated in this Item 5.02 by reference.

Additional leadership roles are described in the CMS Energy News Release which is filed as Exhibit 99.1 to this report and incorporated by reference.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

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.