STOCK TITAN

Mueller Water (MWA) director Zakas sells 54,254 shares under 10b5-1 plan

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Mueller Water Products director and former officer Marietta Edmunds Zakas sold shares in a planned transaction. She executed an open-market sale of 54,254 shares of common stock at an average price of $25.2624 per share, pursuant to a Rule 10b5-1 trading plan adopted on February 26, 2026.

After the sale, she holds 479,867.9554 shares directly and 28,101.8600 shares indirectly through her spouse, whose holdings include shares acquired via a retirement plan. Her direct holdings also include shares previously acquired under the company’s Employee Stock Purchase Plan.

Positive

  • None.

Negative

  • None.
Insider ZAKAS MARIETTA EDMUNDS
Role Former Officer and Director
Sold 54,254 shs ($1.37M)
Type Security Shares Price Value
Sale Common Stock 54,254 $25.2624 $1.37M
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 479,867.955 shares (Direct, null); Common Stock — 28,101.86 shares (Indirect, By Spouse)
Footnotes (1)
  1. 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. Shares acquired by reporting person's spouse through retirement plan.
Shares sold 54,254 shares Open-market sale of common stock
Average sale price $25.2624 per share Average across multiple trades
Post-sale direct holdings 479,867.9554 shares Direct ownership after transaction
Indirect spousal holdings 28,101.8600 shares Held by spouse, including retirement plan shares
ESPP shares included 1,890.16 shares Acquired under Employee Stock Purchase Plan
Trade price range $25.080–$25.725 per share Range of execution prices on sale date
Rule 10b5-1 trading plan regulatory
"The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Employee Stock Purchase Plan financial
"Includes 1,890.16 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan."
An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.
retirement plan financial
"Shares acquired by reporting person's spouse through retirement plan."
indirect ownership financial
""ownership_type": "indirect""
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
X
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
ZAKAS MARIETTA EDMUNDS

(Last)(First)(Middle)
1200 ABERNATHY RD., NE
SUITE 1200

(Street)
ATLANTA GEORGIA 30328

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Mueller Water Products, Inc. [ MWA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Former Officer and Director
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/28/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock05/28/2026S(1)V54,254D$25.2624(2)479,867.9554(3)D
Common Stock28,101.86(4)IBy Spouse
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. 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.
2. 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.
3. Includes 1,890.16 shares acquired under the Mueller Water Products, Inc. Employee Stock Purchase Plan.
4. Shares acquired by reporting person's spouse through retirement plan.
/s/ Barbara A. Smucygz, Attorney-in-Fact05/29/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Marietta Edmunds Zakas report for Mueller Water Products (MWA)?

Marietta Edmunds Zakas reported selling common stock of Mueller Water Products in an open-market transaction. The Form 4 shows she disposed of 54,254 shares, reflecting a planned sale under a pre-arranged Rule 10b5-1 trading plan rather than a spontaneous market decision.

How many Mueller Water Products (MWA) shares did Marietta Edmunds Zakas sell and at what price?

She sold 54,254 shares of Mueller Water Products common stock at an average price of $25.2624 per share. A footnote explains this average reflects multiple trades executed within a price range from $25.080 to $25.725, inclusive, during the reported transaction date.

How many Mueller Water Products (MWA) shares does Marietta Edmunds Zakas hold after this Form 4 sale?

Following the reported sale, she holds 479,867.9554 shares of Mueller Water Products directly. In addition, she has 28,101.8600 shares reported as indirectly owned through her spouse, providing a combined view of her direct and spousal-related ownership position after the transaction.

Was the Mueller Water Products (MWA) insider sale by Marietta Edmunds Zakas under a Rule 10b5-1 plan?

Yes. A footnote states the sale was effected pursuant to a Rule 10b5-1 trading plan adopted on February 26, 2026. Such plans pre-schedule trades, indicating the timing of this disposition was arranged in advance rather than decided opportunistically around market movements.

What price range did the Mueller Water Products (MWA) shares sell within on the transaction date?

The filing notes that individual trades occurred at prices ranging from $25.080 to $25.725 per share. The reported $25.2624 figure is an average price across these multiple executions, and the reporting person offers to provide detailed trade-level data upon request.

What indirect holdings in Mueller Water Products (MWA) are reported for Marietta Edmunds Zakas?

She reports indirect ownership of 28,101.8600 Mueller Water Products shares held by her spouse. A footnote explains these include shares acquired by the spouse through a retirement plan, distinguishing them from her directly held shares in the company.

Does the Mueller Water Products (MWA) Form 4 mention shares from an Employee Stock Purchase Plan?

Yes. A footnote indicates that her holdings include 1,890.16 shares acquired under the Mueller Water Products Employee Stock Purchase Plan. This clarifies that a portion of her reported ownership came through ongoing participation in the company’s employee stock purchase program.