Steven S. Sintros - 31 Oct 2026 Form 4 Insider Report for UNIFIRST CORP (UNF)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: UNF
Reported as of: 31 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 03 Nov 2026, 17:01:35 UTC
Prior SEC filing: 18 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ John Dowd, Attorney-in-Fact

Filing notes and source

Key filing fact

Steven S. Sintros filed Form 4 for UNIFIRST CORP (UNF) on 03 Nov 2026.

Key facts

This page summarizes Steven S. Sintros's Form 4 filing for UNIFIRST CORP (UNF).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 03 Nov 2026, 17:01.

Change

Previous filing in this sequence was filed on 18 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001453910 Primary reporting owner

Sintros Steven S

Relationship: Chief Executive Officer, Director
Address: C/O UNIFIRST CORP., 68 JONSPIN ROAD, WILMINGTON
Signature: /s/ John Dowd, Attorney-in-Fact
Signature date: 03 Nov 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

UNF transaction

Common Stock

Tax liability

Transaction value
Shares: -2,885
Change %: -8.5%
Price: $254.84^*
Shares after: 31,097
Date: 31 Oct 2026
Ownership: Direct
Footnotes: F1

UNF transaction

Common Stock

Award

Transaction value
Shares: +2,907
Change %: +9.3%
Price: $0.000000^*
Shares after: 34,004
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F2

UNF transaction

Common Stock

Award

Transaction value
Shares: +6,963
Change %: +20%
Price: $0.000000^*
Shares after: 40,967
Date: 02 Nov 2026
Ownership: Direct
Footnotes: F3, F4, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote 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.

Footnote F2

Represents restricted stock units that were earned based on the achievement of certain performance criteria and that 50% of such restricted stock units remain subject to vesting on October 31, 2027 and 50% of such restricted stock units remain subject to vesting on October 31, 2028.

Footnote F3

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 November 2, 2027, November 2, 2028 and November 2, 2029.

Footnote F4

These are annual grants for fiscal 2027.

Footnote F5

Consists of (i) 22,532 shares of Common Stock owned by the reporting person, (ii) 789 restricted stock units that vest in one remaining annual installment on October 31, 2027, (iii) 1,825 restricted stock units that vest in two equal annual installments on October 31, 2027 and October 31, 2028, (iii) 1,557 restricted stock units that vest in one remaining annual installment on October 31, 2027, (iv) 3,445 restricted stock units that vest in two equal annual installments on October 31, 2027 and October 31, 2028, (v) 949 restricted stock units that vest in one remaining annual installment on October 31, 2027, (vi) 2,907 restricted stock units that vest in two equal annual installments on October 31, 2027 and October 31, 2028 and (vii) 6,963 restricted stock units that vest in three equal annual installments on November 2, 2027, November 2, 2028 and November 2, 2029.