Mueller Water director may sell $291K in stock

Rhea-AI Filing Summary

Mueller Water Products, Inc. (MWA) is the issuer for a proposed resale of common stock under Rule 144 by director Christine Ortiz. The notice covers 12,048 shares of common stock, with prior issuances from stock plan activity on 02/28/2025 (7,376 shares) and 02/06/2026 (4,672 shares). The filing lists total common shares outstanding as 156,125,679 and an aggregate market value of $291,136 for the securities covered, with planned sales through Merrill Lynch on the NYSE.

Key Figures

Shares to be sold under Rule 144: 12,048 shares of common stock Shares from 02/28/2025 stock plan activity: 7,376 shares of common stock Shares from 02/06/2026 stock plan activity: 4,672 shares of common stock +2 more

5 metrics

Shares to be sold under Rule 144 12,048 shares of common stock Total securities covered by the notice

Shares from 02/28/2025 stock plan activity 7,376 shares of common stock Securities to be sold section

Shares from 02/06/2026 stock plan activity 4,672 shares of common stock Securities to be sold section

Shares outstanding 156,125,679 shares of common stock Total common shares outstanding listed in the securities information section

Aggregate market value of securities to be sold $291,136 Market value of the securities covered by the notice

Key Terms

Rule 144, Stock Plan Activity, aggregate market value

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Stock Plan Activity financial

"Common | 02/06/2026 | Stock Plan Activity | Issuer"

aggregate market value financial

"Common | Merrill Lynch ... | 12048 | 291136 | 156125679"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

What does the Form 144 filing for MWA disclose about planned share sales?

The Form 144 notice discloses that director Christine Ortiz may sell 12,048 shares of Mueller Water Products common stock through Merrill Lynch on the NYSE under Rule 144, based on shares acquired via stock plan activity in 2025 and 2026.

How many Mueller Water Products (MWA) shares are outstanding according to this filing?

The filing states that Mueller Water Products has 156,125,679 shares of common stock outstanding, which serves as the reference base for the Rule 144 sale notice.

What is the aggregate market value of the MWA shares covered by this Form 144?

The securities covered by the notice have an aggregate market value of $291,136, as stated in the securities information section of the Form 144.

How many MWA shares from stock plans are included in Christine Ortiz’s Form 144?

The notice covers 7,376 shares from stock plan activity dated 02/28/2025 and 4,672 shares from stock plan activity dated 02/06/2026, totaling 12,048 shares of Mueller Water Products common stock.

Through which broker and market are the MWA shares in this Form 144 intended to be sold?

The Form 144 lists Merrill Lynch as the broker and indicates that the Mueller Water Products common stock is listed on the NYSE, where the planned Rule 144 sales may occur.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/31/2026 - 04:48 PM Accepted by SEC EDGAR 08/31/2026 - 04:47 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001764692
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MUELLER WATER PRODUCTS, INC.
SEC File Number
Address of Issuer	1200 Abernathy Road N.E. Suite 1200 Atlanta GEORGIA 30328
Phone	7702064200
Name of Person for Whose Account the Securities are To Be Sold	Christine Ortiz
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Merrill Lynch 1800 K ST NW Suite 800 Washington DC 20006	12048	291136	156125679	08/31/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/06/2026	Stock Plan Activity	Issuer			4672	02/06/2026	n/a
Common	02/28/2025	Stock Plan Activity	Issuer			7376	02/28/2025	n/a

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/31/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/01/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Christine Ortiz
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)