X0508 4 2026-02-19 0001350593 Mueller Water Products, Inc. MWA 0001729377 Helms Todd P 1200 ABERNATHY RD., NE SUITE 1200 ATLANTA GA 30328 1 SVP and CHRO 1 Common Stock 2026-02-19 4 S 0 10720.0000 29.7153 D 75196.8641 D The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 20, 2025. The price reported in Column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $29.560 to $30.025, 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. Includes 9.77 shares acquired under the Employee Stock Purchase Plan ("ESPP"). /s/ Barbara A. Smucygz, Attorney-in-Fact 2026-02-20