X0508 4 2023-08-24 0001350593 Mueller Water Products, Inc. MWA 0001303624 Heinrichs Steven S 1200 ABERNATHY RD., NE SUITE 1200 ATLANTA GA 30328 1 EVP, CFO, CLO and CCO 0 Common Stock 2023-08-24 4 F 0 4493.0000 13.5100 D 95163.0670 D Restricted Stock Unit 2023-08-24 4 A 0 74015.0000 0.0000 A 82677.0000 D Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units. Includes 8,764.07 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan Acquisition is pursuant to grant of restricted stock units ("RSUs") under the Mueller Water Products, Inc. Second Amended and Restated 2006 Stock Incentive Plan. Each RSU represents a contingent right to receive one (1) share of Mueller Water Products, Inc. Common Stock when the restrictions lapse. Twenty (20) percent of the RSUs underlying this grant vested on the date of grant, with an additional twenty (20) percent vesting on each 6-month anniversary of the date of grant thereafter, subject to the reporting person's continued service on each such vesting date. /s/ Barbara A. Smucygz, Attorney-in-Fact 2023-08-29