Steven S. Heinrichs - 09 Dec 2025 Form 4 Insider Report for Mueller Water Products, Inc. (MWA)

Reporting relationship: Former EVP, CFO, CLO and CCO
Issuer ticker: MWA
Reported as of: 09 Dec 2025
Net transaction value: -$814,105
SEC form: 4
Accepted by SEC: 10 Dec 2025, 17:56:21 UTC
Prior SEC filing: 04 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Barbara A. Smucygz, Attorney-in-Fact

Key filing fact

Steven S. Heinrichs filed Form 4 for Mueller Water Products, Inc. (MWA) on 10 Dec 2025.

Key facts

This page summarizes Steven S. Heinrichs's Form 4 filing for Mueller Water Products, Inc. (MWA).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 10 Dec 2025, 17:56.

Change

Previous filing in this sequence was filed on 04 Dec 2025.
Current net transaction value: -$814,105.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001303624 Primary reporting owner

Heinrichs Steven S

Relationship: Former EVP, CFO, CLO and CCO
Address: 1200 ABERNATHY RD., NE, SUITE 1200, ATLANTA
Signature: /s/ Barbara A. Smucygz, Attorney-in-Fact
Signature date: 10 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MWA transaction

Common Stock

Sale

Transaction value: $363,443
Shares: -14,965
Change %: -33%
Price: $24.29
Shares after: 30,050
Date: 09 Dec 2025
Ownership: Direct
Footnotes: F1, F2

MWA transaction

Common Stock

Sale

Transaction value: $450,662
Shares: -18,557
Change %: -62%
Price: $24.29
Shares after: 11,493
Date: 09 Dec 2025
Ownership: Direct
Footnotes: F1, F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Steven S. Heinrichs is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote 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.

Footnote 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.

Footnote F3

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