144 0001770203 XXXXXXXX LIVE 0001350593 Mueller Water Products, Inc. 001-32892 1200 ABERNATHY RD, NE SUITE 1200 ATLANTA GA 30328 770-206-4200 Smith Suzanne G Officer Former VP and CAO Common Stock Citigroup Global Markets, Inc.

390 Greenwich St. New York NY 10013

750 20094.38 156293515 09/08/2025 NYSE Common Stock 09/08/2025 ESPP Shares MUELLER WATER PRODUCTS, INC. N 750 09/08/2025 Cash N Suzanne G Smith

1200 Abernathy Road N.E. Suite 1200 Atlanta GA 30328

Common Stock 08/28/2025 1288 34654.16 Suzanne G Smith

1200 Abernathy Road N.E. Suite 1200 Atlanta GA 30328

Common Stock 08/15/2025 8621 227352.15 Shares sold were acquired at various dates through the employee stock purchase plan. 09/08/2025 Conformed Signature on File