UniFirst Corp: 5%+ holders

As of November 6, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of UniFirst Corp. The largest reported stake is Cintas Corp's, at 18.7%. 11 filings are on record since July 17, 2025 (Schedule 13D, March 16, 2026).

The London Company also filed stake reports on 3 other companies ↓

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Key facts

• Filing 2026-10-08 · Reporting person: Dimensional Fund Advisors LP · Sole voting: 689,810 · Shared voting: 0 · Sole dispositive: 703,965 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-10-08
• Filing 2026-08-14 · Reporting person: The London Company · Sole voting: 703,865 · Shared voting: 1,034 · Sole dispositive: 740,213 · Shared dispositive: 1,034 · SCHEDULE 13G/A, 2026-08-14
• Filed 2026-04-30 · Holder: Vanguard Capital Management · Percent: 5.24% · SCHEDULE 13G
• Filed 2026-04-29 · Holder: Vanguard Portfolio Management · Percent: 5.68% · SCHEDULE 13G
• Filed 2026-03-27 · Holder: The Vanguard Group · Percent: 0% · SCHEDULE 13G/A

UniFirst Corp has 11 Schedule 13D or 13G filings on record since 2025-07-17. 5 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

Holders

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More on UniFirst Corp and the records around it.

UniFirst Corp elsewhere on the record

• Who owns it

Companies that share a holder

• The London Company also filed stake reports on 3 other companies: NEWMARKET CORP (Aug 2025)
• River Road Asset Management, LLC also filed stake reports on 8 other companies: Embecta Corp. (May 2026), Cannae Holdings, Inc. (Apr 2026), Ridgepost Capital, Inc. (Apr 2026)
• Dimensional Fund Advisors LP also filed stake reports on 366 other companies: Acadia Healthcare Co Inc (Oct 2026), ADT Inc (Oct 2026), AGCO Corp (Oct 2026)

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Voting and dispositive power, as filed

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The latest filing identifies UniFirst Corp by CUSIP 904708104 and gives its principal executive office as 68 Jonspin Road, Wilmington (SCHEDULE 13G/A, 2026-10-08).

Purpose of Transaction (Item 4)

River Road Asset Management, LLC

The Stock was acquired for investment purposes in the ordinary course of business. As such, the Filer may purchase, hold, vote, trade, dispose, sell or otherwise deal the Stock for the benefit of its clients depending on changes in the per share price of the Stock, or related to changes in the Issuer's operations, management structure, business strategy, future acquisitions, growth prospects, liquidity, capital allocation, including use of leverage, or from the sale or merger of the Issuer. The Filer may discuss such matters and specifically may discuss board of director nominees and may suggest potential board of director nominees, with the Issuer's management or directors, other shareholders, existing or potential strategic partners or competitors, investment and finance professionals, and other investors. Such analysis and discussions may result in the Filer materially modifying their ownership of the Stock. The Filer may also exchange information with the Issuer pursuant to confidentiality or similar agreements, propose changes in its operations, governance, capitalization, or propose one or more of the actions described in sections a through j of Item 4 of Schedule 13D, all in order to enhance shareholder value. The Filer does not intend to seek control of the Issuer or participate in the day-to-day management of the Issuer.Item 4 of the SCHEDULE 13D/A filed 2026-03-17

Cintas Corp

Items 3 and 5 are incorporated by reference in this Item 4 as if fully set forth herein. The purpose of the Mergers (as defined below) is for Cintas Corporation to acquire control of, and the entire equity interest in, the Issuer. Merger Agreement On March 10, 2026, Cintas Corporation, a Washington corporation ("Cintas"), entered into an Agreement and Plan of Merger (the "Merger Agreement") with (i) UniFirst Corporation, a Massachusetts corporation ("UniFirst"), (ii) Bruin Merger Sub I, Inc., a Delaware corporation and a wholly owned subsidiary of Cintas ("Merger Sub Inc."), and (iii) Bruin Merger Sub II, LLC, a Delaware limited liability company and a wholly owned subsidiary of Cintas ("Merger Sub LLC"). The Merger Agreement provides, among other things, that, on the terms and subject to the conditions set forth therein (i) Merger Sub Inc. will be merged with and into UniFirst (the "First Merger"), whereupon the separate existence of Merger Sub Inc. will cease, and UniFirst will continue as the surviving corporation of the First Merger and a wholly owned subsidiary of Cintas and (ii) immediately after the First Merger, UniFirst will be merged with and into Merger Sub LLC (the "Second Merger," and, together with the First Merger, the "Mergers"), whereupon the separate existence of UniFirst will cease, and Merger Sub LLC will continue as the surviving entity of the Second Merger and a wholly owned subsidiary of Cintas. Merger Consideration At the effective time of the …The first part of Item 4 of the SCHEDULE 13D filed 2026-03-16; the filing has the rest

Timeline

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Questions about who owns UniFirst Corp

Who owns UniFirst Corp?

On this page, 5 holders' latest ownership filings report 5% or more of UniFirst Corp: Cintas Corp (18.7%, Schedule 13D, filed 2026-03-16), BlackRock, Inc. (14.3%, Schedule 13G/A, filed 2025-07-17), Vanguard Portfolio Management (5.68%, Schedule 13G, filed 2026-04-29), Vanguard Capital Management (5.24%, Schedule 13G, filed 2026-04-30) and The London Company (5.09%, Schedule 13G/A, filed 2026-08-14).

Who are the largest shareholders of UniFirst Corp?

By the share each holder's latest filing reports, the largest holders of UniFirst Corp on this page are Cintas Corp (18.7%), BlackRock, Inc. (14.3%) and Vanguard Portfolio Management (5.68%).

When did Cintas Corp buy into UniFirst Corp?

The filings give report dates, not purchase dates. The earliest filing from Cintas Corp on this page is the Schedule 13D, filed 2026-03-16, reporting 18.7%.

Is this an audit or a full list?

Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 11 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.

Also on the record for UniFirst Corp

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

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