Steven S. Sintros - 19 Nov 2025 Form 4 Insider Report for UNIFIRST CORP (UNF)

Role: President and CEO, Director
Signature: /s/ John Dowd, Attorney-in-Fact
Issuer symbol: UNF
Transactions as of: 19 Nov 2025
Transactions value $: -$45,877
Form type: 4
Filing time: 21 Nov 2025, 11:06:08 UTC
Previous filing: 04 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sintros Steven S	President and CEO, Director	C/O UNIFIRST CORP, 68 JONSPIN ROAD, WILMINGTON	/s/ John Dowd, Attorney-in-Fact	21 Nov 2025	0001453910

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	UNF	Common Stock	Tax liability	-$45.9K	-287	-0.99%	$159.85	28.8K	19 Nov 2025	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	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.
F2	Consists of (i) 18,743 shares of Common Stock owned by the reporting person, (ii) 747 restricted stock units that vest in one remaining annual installment on October 31, 2026, (iii) 1,576 restricted stock units that vest in two remaining equal annual installments on October 31, 2026 and October 31, 2027, (iv) 2,738 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028, (v) 3,113 restricted stock units that vest in two equal annual installments on October 31, 2026 and October 31, 2027 and (vi) 1,898 restricted stock units that vest in two equal annual installments on October 31, 2026 and October 31, 2027.

Content

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.

Consists of (i) 18,743 shares of Common Stock owned by the reporting person, (ii) 747 restricted stock units that vest in one remaining annual installment on October 31, 2026, (iii) 1,576 restricted stock units that vest in two remaining equal annual installments on October 31, 2026 and October 31, 2027, (iv) 2,738 restricted stock units that vest in three equal annual installments on October 31, 2026, October 31, 2027 and October 31, 2028, (v) 3,113 restricted stock units that vest in two equal annual installments on October 31, 2026 and October 31, 2027 and (vi) 1,898 restricted stock units that vest in two equal annual installments on October 31, 2026 and October 31, 2027.