X0508 4 2024-02-13 0001350593 Mueller Water Products, Inc. MWA 0001729377 Helms Todd P 1200 ABERNATHY RD., NE SUITE 1200 ATLANTA GA 30328 1 SVP and CHRO 0 Common Stock 2024-02-13 4 M 0 15671.0000 11.8600 A 66852.1239 D Common Stock 2024-02-13 4 M 0 11329.0000 11.4100 A 78181.1239 D Common Stock 2024-02-13 4 S 0 37000.0000 15.1515 D 41181.1239 D Stock Option (Right to Buy) 11.4100 2024-02-13 4 M 0 11329.0000 0.0000 D 2032-11-29 Common Stock 11329.0000 22658.0000 D Stock Option (Right to Buy) 11.8600 2024-02-13 4 M 0 15671.0000 0.0000 D 2030-12-02 Common Stock 15671.0000 11005.0000 D The price reported in Column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $15.080 to $15.250, 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 3,519.03 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan Stock options vest in three equal annual installments beginning on the first anniversary of the grant date. /s/ Barbara A. Smucygz, Attorney-in-Fact 2024-02-15