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

Rhea-AI Filing Summary

Mueller Water Products senior officer reports vesting and sale of shares. An executive of Mueller Water Products, Inc. (SVP, General Counsel, Chief Compliance Officer and Corporate Secretary) filed a Form 4 for transactions on December 1, 2025. A tranche of 3,707 units of phantom stock, originally granted on November 29, 2022 and vesting over three years, vested after the scheduled November 29, 2025 vesting date fell on a non-trading day. Each phantom stock unit is economically equivalent to one share of common stock and is settled in cash upon vesting.

On the same date, the officer disposed of 3,707 shares of common stock at a price of $24.08 per share. After these transactions, the officer directly beneficially owns 16,080.9424 shares of Mueller Water Products common stock, which includes 7,617.94 shares acquired under the company’s Employee Stock Purchase Plan.

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

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^*

Carroll Chason A

(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
X	Officer (give title below)		Other (specify below)
	SVP, GC, CCO and Corp Sec

3. Date of Earliest Transaction (Month/Day/Year)
12/01/2025

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	12/01/2025		M		3,707	A	$0(1)	19,787.9424	D
Common Stock	12/01/2025		D		3,707	D	$24.08	16,080.9424(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
Phantom Stock(3)	(1)	12/01/2025		M			3,707	(4)	11/29/2025(5)	Common Stock	3,707	$0.0000	0.0000	D

Explanation of Responses:

1. Each share of phantom stock is the economic equivalent of one share of Mueller Water Products, Inc. common stock on the vesting date. Shares of phantom stock are settled solely in cash upon vesting.

2. Includes 7,617.94 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

3. Phantom stock granted on November 29, 2022 pursuant to the Mueller Water Products, Inc. Phantom Plan.

4. Phantom stock awards vest annually, on a pro-rata basis, over a 3-year period. The first tranche of the award (3,707 shares) vested on November 29, 2023; the second tranche (3,707 shares) vested on November 29, 2024; and the third tranche (3,707 shares) vested on December 1, 2025.

5. Because November 29, 2025 fell on a non-trading day, vesting occurred on December 1, 2025, the next trading day.

	/s/ Barbara A. Smucygz, Attorney-in-Fact	12/03/2025
	** 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 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 Mueller Water Products (MWA) report on this Form 4?

The filing reports that a senior officer of Mueller Water Products, Inc. had 3,707 phantom stock units vest on December 1, 2025, and separately sold 3,707 shares of common stock at $24.08 per share.

Who is the reporting person in the Mueller Water Products (MWA) Form 4 and what is their role?

The reporting person is an officer of Mueller Water Products serving as SVP, General Counsel, Chief Compliance Officer and Corporate Secretary, filing as a single reporting person.

How many Mueller Water Products (MWA) shares did the insider sell and at what price?

The insider disposed of 3,707 shares of Mueller Water Products common stock on December 1, 2025 at a price of $24.08 per share.

What is phantom stock in the context of Mueller Water Products (MWA) compensation?

The filing explains that each share of phantom stock is the economic equivalent of one share of Mueller Water Products common stock on the vesting date, and that phantom stock is settled solely in cash upon vesting.

How many Mueller Water Products (MWA) shares does the insider own after the reported transactions?

Following the reported transactions, the officer directly beneficially owns 16,080.9424 shares of Mueller Water Products common stock.

Does the insider’s share count include stock from the Mueller Water Products (MWA) Employee Stock Purchase Plan?

Yes. The filing notes that the reported holdings include 7,617.94 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

When was the Mueller Water Products (MWA) phantom stock originally granted and how did it vest?

The phantom stock was granted on November 29, 2022 under the Mueller Water Products Phantom Plan and vests annually on a pro-rata basis over three years: 3,707 units on November 29, 2023, 3,707 units on November 29, 2024, and 3,707 units on December 1, 2025 (the next trading day after November 29, 2025).