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Mueller Industries (MLI) awards EVP 6,000 performance-based restricted stock

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Pieralisi Daniel reported acquisition or exercise transactions in this Form 4 filing.

MUELLER INDUSTRIES INC Executive VP - Admin Daniel Pieralisi received a grant of 6,000 shares of performance-based restricted common stock on August 5, 2026 at a reported price of $0.0000 per share. The award may be earned between 0% and 200% of this target based on adjusted EBITDA performance from December 28, 2025 through December 30, 2028 and vests on July 30, 2031.

Following a 2-for-1 stock split on June 30, 2026 that added 42,458 shares via stock dividend, Pieralisi holds 89,108 shares of common stock directly after the reported grant and split-related share issuance.

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Insider Pieralisi Daniel
Role Executive VP - Admin
Type Security Shares Price Value
Grant/Award Common Stock F1, F2 6,000 $0.00 $0.00
Holdings After Transaction: Common Stock — 89,108 shares (Direct)
Footnotes (2)
  1. F1. Represents performance-based restricted stock, which may be earned between 0% and 200% of the target amount reported herein based upon the Issuer's actual performance as compared with an adjusted EBITDA target during the three-year period from December 28, 2025 through December 30, 2028. The vesting date is July 30, 2031.
  2. F2. On June 30, 2026, the Issuer effected a 2-for-1 stock split of its common stock in the form of a stock dividend, as a result of which the Reporting Person received an additional 42,458 shares of common stock.
Restricted stock grant 6,000 shares Performance-based common stock awarded to Daniel Pieralisi on August 5, 2026
Grant price $0.0000 per share Reported transaction price per share for the restricted stock award
Shares after transaction 89,108 shares Direct common stock held by Daniel Pieralisi following the grant and stock split
Stock split ratio 2-for-1 Common stock split effected on June 30, 2026 via stock dividend
Shares from split 42,458 shares Additional common shares received by Daniel Pieralisi in the June 30, 2026 split
Performance payout range 0% to 200% of target Range of shares earnable relative to the 6,000-share performance-based award
Performance measurement period December 28, 2025 to December 30, 2028 Three-year period over which adjusted EBITDA is measured for the award
Vesting date July 30, 2031 Scheduled vesting date for the performance-based restricted stock
performance-based restricted stock financial
"Represents performance-based restricted stock, which may be earned between 0% and 200%"
Shares granted to employees or executives that are held back and only become actual, tradable stock if the company meets predefined performance targets; until those goals are met the shares cannot be sold. Think of it like a bonus held in escrow that’s released only when specific results are achieved — investors watch these awards because they tie management pay to company outcomes, can dilute existing shareholders when released, and signal how confident or incentivized insiders are to meet growth or profitability goals.
adjusted EBITDA financial
"based upon the Issuer's actual performance as compared with an adjusted EBITDA target"
Adjusted EBITDA is a way companies measure how much money they make from their core operations, like running a business, by removing certain costs or income that aren’t part of regular business activities. It helps investors see how well a company is doing without distractions from unusual expenses or gains, making it easier to compare companies or track performance over time.
2-for-1 stock split financial
"the Issuer effected a 2-for-1 stock split of its common stock"

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

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FAQ

What insider transaction did Mueller Industries (MLI) report for Daniel Pieralisi?

Mueller Industries reported that Executive VP - Admin Daniel Pieralisi received 6,000 shares of performance-based restricted common stock on August 5, 2026 at a stated price of $0.0000 per share. This equity award increased his directly held common stock position.

How many Mueller Industries (MLI) shares does Daniel Pieralisi hold after this Form 4 transaction?

After the reported activity, Daniel Pieralisi directly holds 89,108 shares of Mueller Industries common stock. This figure reflects both the new performance-based restricted stock award and the additional shares received from the company’s June 30, 2026 2-for-1 stock split in the form of a stock dividend.

What are the performance conditions on Daniel Pieralisi’s Mueller Industries (MLI) restricted stock award?

The performance-based restricted stock may be earned between 0% and 200% of the 6,000-share target. Payout depends on Mueller Industries’ actual performance versus an adjusted EBITDA target during the three-year period from December 28, 2025 through December 30, 2028.

When do Daniel Pieralisi’s Mueller Industries (MLI) performance-based restricted shares vest?

The performance-based restricted common stock granted to Daniel Pieralisi is scheduled to vest on July 30, 2031. Vesting is tied to the company’s adjusted EBITDA performance over the three-year measurement period ending December 30, 2028, which determines how many shares are ultimately earned.

How did Mueller Industries’ (MLI) June 30, 2026 stock split affect Daniel Pieralisi’s holdings?

On June 30, 2026, Mueller Industries effected a 2-for-1 stock split in the form of a stock dividend. As a result, Daniel Pieralisi received an additional 42,458 shares of common stock, which contributed significantly to his post-transaction total of 89,108 shares.

Was Daniel Pieralisi’s Mueller Industries (MLI) equity award made under a Rule 10b5-1 trading plan?

The Form 4’s Rule 10b5-1 checkbox is not marked as affirming that this performance-based restricted stock award was executed under a Rule 10b5-1 trading plan. The transaction is reported as a grant or award acquisition rather than an open-market purchase or sale.
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
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
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*
Pieralisi Daniel

(Last)(First)(Middle)
1303 BRAYSHORE DRIVE

(Street)
COLLIERVILLE TENNESSEE 38017

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
MUELLER INDUSTRIES INC [ MLI ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Executive VP - Admin
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/05/2026
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 Stock08/05/2026A6,000(1)A$089,108(2)D
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. Represents performance-based restricted stock, which may be earned between 0% and 200% of the target amount reported herein based upon the Issuer's actual performance as compared with an adjusted EBITDA target during the three-year period from December 28, 2025 through December 30, 2028. The vesting date is July 30, 2031.
2. On June 30, 2026, the Issuer effected a 2-for-1 stock split of its common stock in the form of a stock dividend, as a result of which the Reporting Person received an additional 42,458 shares of common stock.
Remarks:
Anthony J. Steinriede, Attorney-in-Fact08/05/2026
** 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)