Mueller Water Products insider sells shares under 10b5-1 plan

Mueller Water Products, Inc. (MWA) reported an insider transaction by its former EVP, CFO, CLO and CCO.

Accepted by SEC EDGAR 12/10/2025 - 05:56 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Mueller Water Products, Inc. (MWA) reported an insider transaction by its former EVP, CFO, CLO and CCO. On December 9, 2025, the reporting person sold 14,965 and 18,557 shares of common stock in two separate transactions at average prices of $24.2862 and $24.2853 per share, respectively.

The sales were made under a Rule 10b5-1 trading plan adopted on September 9, 2025, which is designed to allow pre-arranged trades. Following these transactions, the reporting person beneficially owns about 11,493.07 shares, including shares acquired through the Mueller Water Products, Inc. Employee Stock Purchase Plan.

Insider Trade Summary

Net Seller: 33,522 shares

Net Sell 2 txns

Insider Heinrichs Steven S

Role Insider

Sold 33,522 shs ($814K)

Share of Position Sold 74.5%

Type	Security	Shares	Price	Value
Sale	Common Stock	14,965	$24.2862	$363K
Sale	Common Stock	18,557	$24.2853	$451K

Holdings After Transaction: Common Stock — 11,493.0663 shares (Direct)

Holdings Before and After: Common Stock, 45,015.0663 to 11,493.0663 shares (Direct)

Other Insiders: 1 other insider reported open-market sales of this stock in the 30 days up to this filing.

Footnotes (3)

1. F1. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 9, 2025.
2. F2. The price reported in Column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $24.070 to $24.550, inclusive. The reporting person undertakes to provide to Mueller Water Products, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
3. F3. Includes 11,493.07 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Mueller Water Products (MWA) report in this Form 4?

The filing reports that the former EVP, CFO, CLO and CCO of Mueller Water Products, Inc. (MWA) sold shares of the company’s common stock in two transactions on December 9, 2025.

How many Mueller Water Products (MWA) shares were sold and at what prices?

The reporting person sold 14,965 shares at an average price of $24.2862 per share and 18,557 shares at an average price of $24.2853 per share.

Was the Mueller Water Products (MWA) insider sale made under a Rule 10b5-1 plan?

Yes. The sale was effected pursuant to a Rule 10b5-1 trading plan that the reporting person adopted on September 9, 2025.

How many Mueller Water Products (MWA) shares does the insider hold after these sales?

After the reported transactions, the reporting person beneficially owns about 11,493.07 shares of Mueller Water Products common stock.

What is the source of the remaining Mueller Water Products (MWA) shares held by the insider?

The remaining holding includes 11,493.07 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

What role did the reporting person previously hold at Mueller Water Products (MWA)?

The reporting person is identified as a former EVP, CFO, CLO and CCO of Mueller Water Products, Inc.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

X

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

X

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^*

Heinrichs Steven S

(Last) (First) (Middle)

1200 ABERNATHY RD., NE

SUITE 1200

(Street)

ATLANTA GA 30328

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Mueller Water Products, Inc. [ MWA ]

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

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			Former EVP, CFO, CLO and CCO

3. Date of Earliest Transaction (Month/Day/Year)
12/09/2025

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	12/09/2025		S(1)		14,965	D	$24.2862(2)	30,050.0663	D
Common Stock	12/09/2025		S(1)		18,557	D	$24.2853(2)	11,493.0663(3)	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:

1. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 9, 2025.

2. The price reported in Column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $24.070 to $24.550, inclusive. The reporting person undertakes to provide to Mueller Water Products, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

3. Includes 11,493.07 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

	/s/ Barbara A. Smucygz, Attorney-in-Fact	12/10/2025
	** 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 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.