Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Sintros Steven S 2. Issuer Name and Ticker or Trading Symbol UNIFIRST CORP [UNF] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President and CEO (Last) (First) (Middle) C/O UNIFIRST CORP, 68 JONSPIN ROAD 3. Date of Earliest Transaction (Month/Day/Year) 10/31/2025 (Street) WILMINGTON, MA 01887 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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) Code V Amount (A) or (D) Price Common Stock 10/31/2025 F 1,696(1) D $154.35 27,204 D Common Stock 10/31/2025 A 1,898(2) A $ 0 29,102(3) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Sintros Steven S C/O UNIFIRST CORP 68 JONSPIN ROAD WILMINGTON, MA 01887	X		President and CEO

Signatures

/s/ John Dowd, Attorney-in-Fact		11/04/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Represents shares of Common Stock withheld by UniFirst Corporation to satisfy certain tax withholding obligations in connection with the vesting of certain restricted stock units.
(2)	Represents restricted stock units that were earned based on the achievement of certain performance criteria and that 50% of such restricted stock units remain subject to vesting on October 31, 2026 and 50% of such restricted stock units remain subject to vesting on October 31, 2027.
(3)	Consists of (i) 18,385 shares of Common Stock owned by the reporting person, (ii) 645 restricted stock units that will vest in one remaining annual installment on November 19, 2025, (iii) 747 restricted stock units that vest in one remaining annual installment on October 31, 2026, (iv) 1,576 restricted stock units that vest in two remaining equal annual installments on October 31, 2026 and October 31, 2027, (v) 2,738 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028, (vi) 3,113 restricted stock units that vest in two equal annual installments on October 31, 2026 and October 31, 2027 and (vii) 1,898 restricted stock units that vest in two equal annual installments on October 31, 2026 and October 31, 2027.

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