MWA

The purchase reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 11, 2026.

Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units.

Includes 12,086.04 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 26, 2026.

The price reported in Column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $25.080 to $25.725, 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 1,890.16 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

The purchase reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 11, 2026.

The price reported in Column 4 is an average price. These shares were purchased in multiple transactions at prices ranging from $25.740 to $25.830, 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 purchased at each separate price within the ranges set forth in this footnote.

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 $27.340 to $27.885, 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 9.79 shares acquired under the Employee Stock Purchase Plan ("ESPP").

Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units.

Includes 1,322.33 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

The price reported in Column 4 is an average price. These shares were purchased in multiple transactions at prices ranging from $29.410 to $29.863, 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 purchased at each separate price within the ranges set forth in this footnote.

The stock options will vest in three (3) equal, annual installments on the anniversary of the grant date.

Acquisition is pursuant to grant of restricted stock units under the Mueller Water Products, Inc. Third Amended and Restated 2006 Stock Incentive Plan. Each restricted stock unit represents a contingent right to receive one (1) share of Mueller Water Products, Inc. Common Stock when the restrictions lapse. The lapse occurs in three (3) equal, annual installments beginning on the first anniversary of the grant date.

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").

The stock options will vest in three (3) equal, annual installments on the anniversary of the grant date.

Acquisition is pursuant to grant of restricted stock units under the Mueller Water Products, Inc. Third Amended and Restated 2006 Stock Incentive Plan. Each restricted stock unit represents a contingent right to receive one (1) share of Mueller Water Products, Inc. Common Stock when the restrictions lapse. The lapse occurs in three (3) equal, annual installments beginning on the first anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of Mueller Water Products, Inc. Common Stock when the restrictions lapse on the first anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of Mueller Water Products, Inc. Common Stock when the restrictions lapse on the first anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of Mueller Water Products, Inc. Common Stock when the restrictions lapse on the first anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of Mueller Water Products, Inc. Common Stock when the restrictions lapse on the first anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of Mueller Water Products, Inc. Common Stock when the restrictions lapse on the first anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of Mueller Water Products, Inc. Common Stock when the restrictions lapse on the first anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of Mueller Water Products, Inc. Common Stock when the restrictions lapse on the first anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of Mueller Water Products, Inc. Common Stock when the restrictions lapse on the first anniversary of the grant date.

Each restricted stock unit represents a contingent right to receive one share of Mueller Water Products, Inc. Common Stock when the restrictions lapse on the first anniversary of the grant date.

The purchase reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 7, 2025.

The price reported in Column 4 is an average price. These shares were purchased in multiple transactions at prices ranging from $24.400 to $24.500, 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 purchased at each separate price within the ranges set forth in this footnote.

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 9, 2025.

The price reported in Column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $24.070 to $24.550, 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.

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 9, 2025.

The price reported in Column 4 is an average price. These shares were sold in multiple transactions at prices ranging from $24.070 to $24.550, 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 11,493.07 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

The price reported in Column 4 is an average price. These shares were purchased in multiple transactions at prices ranging from $24.555 to $24.685, 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 purchased at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is an average price. These shares were purchased in multiple transactions at prices ranging from $24.555 to $24.685, 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 purchased at each separate price within the ranges set forth in this footnote.

Includes 9.77 shares acquired under the Employee Stock Purchase Plan ("ESPP").

The stock options vest in three equal annual installments beginning on the first anniversary of the grant date.

The stock options vest in three equal annual installments beginning on the first anniversary of the grant date.

Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units.

Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units.

Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units.

Includes 1,880.52 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units.

Includes 7,617.94 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units.

Includes 979.73 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units.

Shares were withheld to cover the tax liability on the lapse of the restrictions on restricted stock units.

Includes 11,800.68 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

Acquisition is pursuant to grant of restricted stock units under the Mueller Water Products, Inc. Second Amended and Restated 2006 Stock Incentive Plan. Each restricted stock unit represents a contingent right to receive one (1) share of Mueller Water Products, Inc. Common Stock when the restrictions lapse. The lapse occurs in three (3) equal, annual installments beginning on the first anniversary of the grant date.

The stock options will vest in three (3) equal, annual installments on the anniversary of the grant date.

Acquisition is pursuant to the grant of performance-based restricted stock units under the Mueller Water Products, Inc. Amended and Restated 2006 Stock Incentive Plan. Units were earned based on the Company's rTSR and ROIC performances during a three-year performance period that vested on the last day of the award cycle. Excludes shares withheld to satisfy tax obligations.

Includes 9.77 shares acquired under the Employee Stock Purchase Plan ("ESPP").

Acquisition is pursuant to the grant of performance-based restricted stock units under the Mueller Water Products, Inc. Amended and Restated 2006 Stock Incentive Plan. Units were earned based on the Company's rTSR and ROIC performances during a three-year performance period that vested on the last day of the award cycle. Excludes shares withheld to satisfy tax obligations.

Includes 11,800.68 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.

Acquisition is pursuant to grant of restricted stock units under the Mueller Water Products, Inc. Second Amended and Restated 2006 Stock Incentive Plan. Each restricted stock unit represents a contingent right to receive one (1) share of Mueller Water Products, Inc. Common Stock when the restrictions lapse. The lapse occurs in three (3) equal, annual installments beginning on the first anniversary of the grant date.

The stock options will vest in three (3) equal, annual installments on the anniversary of the grant date.

Acquisition is pursuant to the grant of performance-based restricted stock units under the Mueller Water Products, Inc. Amended and Restated 2006 Stock Incentive Plan. Units were earned based on the Company's rTSR and ROIC performances during a three-year performance period that vested on the last day of the award cycle. Excludes shares withheld to satisfy tax obligations.

The stock options will vest in three (3) equal, annual installments on the anniversary of the grant date.

The stock options will vest in three (3) equal, annual installments on the anniversary of the grant date.

Acquisition is pursuant to grant of restricted stock units under the Mueller Water Products, Inc. Second Amended and Restated 2006 Stock Incentive Plan. Each restricted stock unit represents a contingent right to receive one (1) share of Mueller Water Products, Inc. Common Stock when the restrictions lapse. The lapse occurs in three (3) equal, annual installments beginning on the first anniversary of the grant date.

Acquisition is pursuant to grant of restricted stock units under the Mueller Water Products, Inc. Second Amended and Restated 2006 Stock Incentive Plan. Each restricted stock unit represents a contingent right to receive one (1) share of Mueller Water Products, Inc. Common Stock when the restrictions lapse. The lapse occurs in three (3) equal, annual installments beginning on the first anniversary of the grant date.

Acquisition is pursuant to the grant of performance-based restricted stock units under the Mueller Water Products, Inc. Amended and Restated 2006 Stock Incentive Plan. Units were earned based on the Company's rTSR and ROIC performances during a three-year performance period that vested on the last day of the award cycle. Excludes shares withheld to satisfy tax obligations.