Director at CMS Energy (NYSE: CMS) buys 2,000 company shares

Rhea-AI Filing Summary

CMS Energy Corp director Diane Leopold bought 2,000 shares of common stock in an open-market purchase. The transaction took place on February 25, 2026 at a price of $76.699 per share. After this purchase, she directly owns 2,769 CMS Energy shares.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Leopold Diane

(Last) (First) (Middle)

ONE ENERGY PLAZA

(Street)

JACKSON MI 49201

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/25/2026		P		2,000	A	$76.699	2,769	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	Rhonda M. Morris, Attny-in-fact	02/27/2026
	** 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 4 (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 insider transaction did CMS (CMS Energy Corp) report?

CMS Energy reported that director Diane Leopold completed an open-market purchase of 2,000 common shares. The transaction occurred on February 25, 2026, and was reported on a Form 4 insider filing detailing her updated direct ownership position in the company.

How many CMS Energy shares did Diane Leopold buy and at what price?

Diane Leopold bought 2,000 CMS Energy common shares at a price of $76.699 per share. This open-market transaction increases her direct stake and reflects a single purchase reported in the Form 4 filing for February 25, 2026.

What is Diane Leopold’s total CMS Energy share ownership after this trade?

After the reported transaction, Diane Leopold directly owns 2,769 CMS Energy common shares. This figure reflects her holdings following the 2,000-share open-market purchase executed on February 25, 2026, as disclosed in the Form 4 insider filing.

Was the CMS insider transaction a purchase or sale of shares?

The CMS Energy insider transaction was a purchase of shares, not a sale. Director Diane Leopold conducted an open-market buy of 2,000 common shares, coded as a “P” transaction and described as a purchase in open market or private transaction.

Does Diane Leopold hold CMS Energy shares directly or indirectly?

Diane Leopold holds the reported CMS Energy shares directly. The Form 4 identifies her ownership type as direct with a “D” code, and no footnotes indicate any indirect ownership through trusts, partnerships, or other related entities.