FORM 4 UNITED 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
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
Ross William Masters

(Last) (First) (Middle)
C/O UNIFIRST CORP
68 JONSPIN ROAD

(Street)
WILMINGTON MA 01887

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
UNIFIRST CORP [ UNF ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Executive Vice President
3. Date of Earliest Transaction (Month/Day/Year)
11/28/2022
4. If Amendment, Date of 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
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 11/28/2022   A   1,378 (1) A $ 0 5,566 (2) D  
Common Stock               65 I By IRA
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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Appreciation Right (3) $ 190.53 11/28/2022   A   1,397     (3) 11/28/2032 Common Stock ($0.10 par value) 1,397 $ 0 1,397 D  
Explanation of Responses:
1. Represents restricted stock units granted under the UniFirst Corporation Amended and Restated 2010 Stock Option and Incentive Plan (the "2010 Plan"). Such restricted stock units vest in five equal annual installments on October 31, 2023, October 31, 2024, October 31, 2025, October 31, 2026 and October 31, 2027.
2. Consists of 209 restricted stock units that vest in one remaining annual installment on December 20, 2022, 247 restricted stock units that vest in one remaining annual installment on October 31, 2023, 388 restricted stock units that vest in two remaining equal annual installments on October 31, 2023 and October 31, 2024, 702 restricted stock units that vest in three remaining equal annual installments on October 31, 2023, October 31, 2024 and October 31, 2025, 896 restricted stock units that vest in four remaining equal annual installments on October 31, 2023, October 31, 2024, October 31, 2025 and October 31, 2026, 1,378 restricted stock units that vest in five equal annual installments on October 31, 2023, October 31, 2024, October 31, 2025, October 31, 2026 and October 31, 2027 and 1,746 shares of Common Stock owned by the reporting person.
3. This stock appreciation right, which was granted under the 2010 Plan, becomes vested and exercisable in five equal annual installments on October 31, 2023, October 31, 2024, October 31, 2025, October 31, 2026 and October 31, 2027. This stock appreciation right is required to be settled in stock at the time of exercise.
/s/ Steven S. Sintros, Attorney-in-Fact 11/30/2022
** Signature of Reporting Person Date
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).
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