[Form 3] CMS ENERGY CORP Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Thomas Shannon filed an initial Form 3 reporting a 09/29/2025 event for CMS Energy Corp (CMS). He is identified as a Senior Vice President and officer. The filing declares no beneficial ownership of CMS common stock or the 4.2% Perpetual Preferred Stock, Series C. A Power of Attorney is attached and the form is signed by Rhonda M. Morris, attorney-in-fact on 10/03/2025.

Positive

• Form 3 filed and identifies reporting person and role clearly
• Filing discloses no beneficial ownership, removing immediate conflict-of-interest concerns

Negative

• None.

Insights

Corporate Governance Analyst

Initial disclosure shows no holdings for newly reported officer role.

The filing confirms Thomas Shannon is an officer (Senior Vice President) of CMS Energy Corp and that he currently holds zero shares of both common stock and the Series C preferred.

The attached Power of Attorney and signature by Rhonda M. Morris on 10/03/2025 indicate the filing was executed by an authorized representative.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
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1. Name and Address of Reporting Person^*

Thomas Shannon

(Last) (First) (Middle)

ONE ENERGY PLAZA

(Street)

JACKSON MI 49201

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
09/29/2025

3. Issuer Name and Ticker or Trading Symbol
CMS ENERGY CORP [ CMS ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Senior Vice President

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	0	D
Depositary Shares - 4.2% Perpetual Preferred Stock, Series C	0	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

The Power of Attorney is attached at Exhibit 24. No securities are beneficially owned.

	Rhonda M. Morris, Attny-in-fact	10/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Thomas Shannon disclose on the CMS (CMS) Form 3?

The Form 3 states Thomas Shannon is a Senior Vice President and reports no beneficial ownership of CMS common stock or the 4.2% Perpetual Preferred Stock, Series C.

When was the reportable event dated on the Form 3 for CMS (CMS)?

The Date of Event Requiring Statement is 09/29/2025 as shown on the Form 3.

Who signed the Form 3 for Thomas Shannon on behalf of the reporting person?

The Form 3 was executed by Rhonda M. Morris, attorney-in-fact and dated 10/03/2025.

Does the Form 3 report any derivative or indirect holdings for CMS (CMS)?

No. The filing lists zero holdings for common stock and the cited preferred series and shows no derivative securities.

What officer title did Thomas Shannon list on the Form 3 for CMS (CMS)?

He is listed as a Senior Vice President and an officer of CMS Energy Corp.