X0306 4 2022-05-16 0001350593 Mueller Water Products, Inc. MWA 0001303624 Heinrichs Steven S 1200 ABERNATHY ROAD SUITE 1200 ATLANTA GA 30328 1 EVP, CLO, CCO and Secretary Common Stock 2022-05-16 4 S 0 17000.0000 11.5417 D 55316.2409 D The price reported in Column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $11.53 to $11.57, 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 5,927.24 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan. /s/ Barbara A. Smucygz, Attorney-in-Fact 2022-05-17