[Form 4] UNIFIRST CORP Insider Trading Activity

Rhea-AI Filing Summary

UniFirst (UNF) reported an insider transaction reflecting tax withholding on vested equity. On 10/31/2025, the reporting person had 272 shares of Common Stock withheld (Transaction Code F) at $154.35 per share. Following this, beneficial ownership stands at 10,266 shares.

The filing also details unvested awards: 94 RSUs vest on October 31, 2026; 237 RSUs vest in two equal installments on October 31, 2026 and 2027; 411 RSUs vest in three equal installments on October 31, 2026, 2027, and 2028; 390 RSUs vest in two equal installments on October 31, 2026 and 2027. The reporting person is listed as a Director.

SEC Form 4

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

OMB APPROVAL

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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).

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^*

Croatti Matthew

(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	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/31/2025

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	10/31/2025		F		272(1)	D	$154.35	10,266(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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. Consists of 94 restricted stock units that vest in one remaining annual installment on October 31, 2026, 237 restricted stock units that vest in two remaining equal annual installments on October 31, 2026 and October 31, 2027, 411 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028, 390 restricted stock units that vest in two equal annual installments on October 31, 2026 and October 31, 2027 and 9,134 shares of Common Stock owned by the reporting person.

	/s/ John Dowd, Attorney-in-Fact	11/04/2025
	** 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).
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.

FAQ

What did UniFirst (UNF) disclose in this Form 4?

A tax-withholding transaction on vested equity: 272 shares withheld on 10/31/2025 at $154.35 (Code F).

How many UniFirst (UNF) shares does the reporting person now own?

Beneficial ownership after the transaction is 10,266 shares.

What RSU vesting schedule is outlined for UNF?

RSUs vest as follows: 94 on 10/31/2026; 237 in two equal installments on 10/31/2026 and 10/31/2027; 411 in three equal installments on 10/31/2026, 10/31/2027, 10/31/2028; 390 in two equal installments on 10/31/2026 and 10/31/2027.

What is the transaction code used in this UNF Form 4?

The filing uses Transaction Code F, applied to the 272-share tax withholding.

What is the reporting person’s relationship to UniFirst (UNF)?

The reporting person is identified as a Director.

Was the transaction executed under Rule 10b5-1?

The form includes a checkbox for Rule 10b5-1 plans; the filing excerpt does not indicate it was selected.