[Form 4] Mueller Water Products, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Steven S. Heinrichs, identified as a former EVP, CFO, CLO and CCO of Mueller Water Products, Inc. (MWA), reported a sale of common stock on 08/28/2025. The Form 4 shows 10,310 shares were sold (transaction code S) at an average price of $26.8616, with prices in the range $26.860 to $26.875. After the sale, the reporting person is shown as beneficially owning 11,458.8956 shares, which includes 11,458.895675 shares acquired under the Employee Stock Purchase Plan (ESPP). The Form 4 was signed by an attorney-in-fact on 08/29/2025. No derivative transactions or other securities classes are reported in this filing.

Positive

• Continued beneficial ownership: Reporting person retains 11,458.8956 shares, largely through the ESPP.
• Complete disclosure: Sale price disclosed as an average and filer offers to provide per-trade detail on request, supporting transparency.

Negative

• Insider sale: 10,310 shares were sold on 08/28/2025, which reduces the reporting person's direct holdings.
• Former executive: The reporting person is identified as a former EVP/CFO/CLO/CCO, which may be contextually relevant to observers monitoring insider activity.

Insights

Securities Analyst

TL;DR A former senior officer sold 10,310 MWA shares at an average of $26.8616, retaining 11,458.8956 shares (largely via ESPP).

The transaction is a straightforward Section 16 disclosure showing an open-market disposition of common stock on 08/28/2025. The sale price is reported as an average across multiple executions between $26.860 and $26.875; the filer offers to provide per-trade detail on request. The filing lists no options, warrants, or other derivatives. For investors, this is a routine insider sale disclosure rather than an announcement of corporate action; it documents liquidity by the reporting person and continued modest beneficial ownership via the ESPP.

Corporate Governance Expert

TL;DR The Form 4 documents a single insider sale with continued ESPP-based ownership, filed by one reporting person.

The form identifies the reporting person as a former executive and indicates the filing was made by one reporting person. The signature was provided by an attorney-in-fact, which is common for administrative filings. No amendments, related-party transfers, or plan-based 10b5-1 indicators are shown on the face of the form. From a governance perspective, the filing provides required transparency about changes in beneficial ownership but does not disclose motives or any company-level governance events.

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).

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)
08/28/2025

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	08/28/2025		S		10,310	D	$26.8616(1)	11,458.8956(2)	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 price reported in Column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $26.860 to $26.875, 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.

2. Includes 11,458.895675 shares acquired under the Employee Stock Purchase Plan ("ESPP").

	/s/ Barbara A. Smucygz, Attorney-in-Fact	08/29/2025
	** 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.

FAQ

What did Steven S. Heinrichs report on the Form 4 for MWA?

The Form 4 reports a sale of 10,310 common shares on 08/28/2025 at an average price of $26.8616 and beneficial ownership of 11,458.8956 shares following the sale.

What price did the insider receive for the MWA shares sold?

The filing reports an average price of $26.8616, with executions ranging from $26.860 to $26.875.

How many MWA shares does the reporting person own after the reported transaction?

After the sale, the reporting person beneficially owns 11,458.8956 shares, which includes 11,458.895675 shares acquired under the Employee Stock Purchase Plan.

Was the Form 4 filed by multiple reporting persons or an attorney?

The form indicates it was filed by one reporting person and the signature on the form was provided by an attorney-in-fact on 08/29/2025.

Were any derivative securities (options, warrants) reported in this Form 4 for MWA?

No derivative securities are reported in Table II; the filing only discloses the non-derivative common stock sale.