David Martin Katz - 16 Dec 2025 Form 4 Insider Report for UNIFIRST CORP (UNF)

Role: Executive VP, Sales/Marketing
Signature: /s/ John Dowd, Attorney-in-Fact
Issuer symbol: UNF
Transactions as of: 16 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 18 Dec 2025, 20:13:18 UTC
Previous filing: 05 Nov 2025
Next filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Katz David Martin	Executive VP, Sales/Marketing	C/O UNIFIRST CORP, 68 JONSPIN ROAD, WILMINGTON	/s/ John Dowd, Attorney-in-Fact	18 Dec 2025	0001459610

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	UNF	Common Stock	Award	$0	+1,866	+31%	$0.000000	7,925	16 Dec 2025	Direct	F1, F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	UNF	Stock Appreciation Right	Award	$0	+2,676		$0.000000	2,676	16 Dec 2025	Common Stock ($0.10 par value)	2,676	$174.20	Direct	F2, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	These are annual grants for fiscal 2026.
F3	Consists of 299 restricted stock units that vest in one remaining annual installment on October 31, 2026, 709 restricted stock units that vest in two remaining equal annual installments on October 31, 2026 and October 31, 2027, 1,232 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028, 1,125 restricted stock units that vest in two equal annual installments on October 31, 2026 and October 31, 2027, 2,676 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028 and 2,694 shares of Common Stock owned by the reporting person.
F4	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.