[Form 4] UNIFIRST CORP Insider Trading Activity

Rhea-AI Filing Summary

UniFirst Corp director reports new equity awards and updated holdings. On December 16, 2025, the reporting person received 646 restricted stock units of UniFirst common stock at a price of $0 under the company’s 2023 Stock Option and Incentive Plan. These units vest in three equal annual installments on October 31, 2026, 2027 and 2028.

The filing also reports a grant of a stock appreciation right covering 618 shares, with an exercise price of $174.2 per share, vesting in three equal annual installments on the same October 31 dates and expiring on December 16, 2035. After these transactions, the director beneficially owned 10,912 shares of UniFirst common stock, including previously granted restricted stock units and directly owned shares.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Croatti Matthew

Role 10% Owner

Type	Security	Shares	Price	Value
Grant/Award	Stock Appreciation Right	618	$0.00	--
Grant/Award	Common Stock	646	$0.00	--

Holdings After Transaction: Stock Appreciation Right — 618 shares (Direct); Common Stock — 10,912 shares (Direct)

Footnotes (1)

1. Represents restricted stock units granted under the UniFirst Corporation 2023 Stock Option and Incentive Plan (the "2023 Plan"). Such restricted stock units vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028. These are annual grants for fiscal 2026. 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, 646 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028 and 9,134 shares of Common Stock owned by the reporting person. This stock appreciation right, which was granted under the 2023 Plan, becomes vested and exercisable in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028. This stock appreciation right is required to be settled in stock at the time of exercise.

Form 4 Insider Transactions: What Each Field Means →

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

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^*

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)
12/16/2025

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	12/16/2025		A		646(1)(2)	A	$0	10,912(3)	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
Stock Appreciation Right(2)(4)	$174.2	12/16/2025		A		618		(4)	12/16/2035	Common Stock ($0.10 par value)	618	$0	618	D

Explanation of Responses:

1. Represents restricted stock units granted under the UniFirst Corporation 2023 Stock Option and Incentive Plan (the "2023 Plan"). Such restricted stock units vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028.

2. These are annual grants for fiscal 2026.

3. 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, 646 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028 and 9,134 shares of Common Stock owned by the reporting person.

4. This stock appreciation right, which was granted under the 2023 Plan, becomes vested and exercisable in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028. This stock appreciation right is required to be settled in stock at the time of exercise.

	/s/ John Dowd, Attorney-in-Fact	12/18/2025
	** 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 insider transaction did UniFirst (UNF) report on December 16, 2025?

A UniFirst director reported receiving 646 restricted stock units of common stock on December 16, 2025 under the company’s 2023 Stock Option and Incentive Plan.

How do the new UniFirst (UNF) restricted stock units vest?

The 646 restricted stock units vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028.

What stock appreciation right was granted to the UniFirst (UNF) director?

The director received a stock appreciation right covering 618 shares of common stock with an exercise price of $174.2 per share, vesting in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028, and expiring on December 16, 2035.

How must the UniFirst (UNF) stock appreciation right be settled?

The filing states that the stock appreciation right granted under the 2023 Plan is required to be settled in stock at the time of exercise.

What is the UniFirst (UNF) director’s total beneficial ownership after the reported transactions?

After the reported grants, the director beneficially owned 10,912 shares of UniFirst common stock, consisting of both restricted stock units and directly owned shares.

Which equity plan governed the UniFirst (UNF) director’s new awards?

The restricted stock units and the stock appreciation right were granted under the UniFirst Corporation 2023 Stock Option and Incentive Plan.