FTC Set to Sue to Block Cintas' $5.5B UniFirst Deal — Both Stocks Fall

Direct answer: The Federal Trade Commission has reportedly told Cintas it will sue to block its $5.5 billion acquisition of rival UniFirst, according to a Semafor report relayed by Reuters on Tuesday, October 27, 2026. UniFirst shares fell about 8% and Cintas shares fell about 5% after the report, as investors priced in the possible collapse of a deal agreed in March after a pursuit dating back to at least 2022.

What happened

Reuters reported on October 27 that the FTC has indicated to Cintas that it will sue to block the proposed $5.5 billion cash-and-stock acquisition of UniFirst. The report, originally from Semafor and citing people familiar with the matter, said FTC staff have privately expressed concerns about the two companies' combined market share. Importantly, the report also said the FTC has not yet voted on whether to sue — so this is a reported intention, not a filed lawsuit or a final agency decision.

Cintas, UniFirst and the FTC did not immediately respond to Reuters' requests for comment. The core claim should therefore be read as reported and unconfirmed, even though the market reaction was immediate.

Why this deal matters

Cintas and UniFirst are two of North America's largest workwear and facility-services providers. They rent, launder and deliver uniforms and supply workplace services to businesses across the United States and Canada. Cintas was valued at about $89.71 billion in the Reuters report, while UniFirst has a market capitalisation of about $5.06 billion — a large buyer absorbing one of its closest rivals.

The deal capped a multi-year pursuit. Cintas had made at least three formal approaches since 2022 before the two sides reached an agreement in March. For Cintas, the strategic logic was scale: combining delivery routes, plants and supply chains to cut costs and compete more effectively. For regulators, that same scale is the problem to examine — fewer large national providers can mean less competition for the business customers who buy these services.

Why it's blowing up now

The story broke during Tuesday's trading session and moved both stocks within hours. The Motley Fool's midday market coverage on October 27 already listed UniFirst and Cintas among the day's notable decliners on reports that the FTC plans to block their $5.5 billion merger, alongside a tech-led rise in the broader market. That contrast — indexes up, both deal stocks sharply down — is why the report spread quickly through finance coverage.

The size of the falls also tells a story. UniFirst fell further, about 8%, which fits the usual pattern for a target company: much of its share price reflected the takeover premium in the agreed deal, and that premium is the first thing investors remove when a deal looks at risk. Cintas fell about 5%, a smaller but still substantial move for a company of its size, reflecting both the loss of the expected cost savings and the prospect of a long, expensive court fight if it chooses to defend the deal.

Key facts

• Deal value: $5.5 billion, in cash and stock, agreed in March.
• Reported action: The FTC has indicated it will sue to block the deal, per Semafor via Reuters; the agency has not yet voted, according to the same report.
• Regulator's concern: The companies' combined market share in workwear and facility services.
• Market reaction: UniFirst down about 8% and Cintas down about 5% on Tuesday.
• History: At least three formal Cintas approaches since 2022 before the March agreement.
• Comment: Cintas, UniFirst and the FTC did not immediately respond to Reuters.

What happens next

Several paths are possible, and none is certain yet. The FTC could vote to file a formal complaint, which would move the dispute into a legal process where the companies could defend the merger. The companies could offer concessions, such as selling parts of the business, to address competition concerns. Or they could abandon the agreement if the expected fight looks too long or uncertain. Until there is a filed complaint, a company statement or a court step, readers should treat the outcome as open.

Watch for any official FTC statement, any response from either company, and whether the share-price moves hold. This article reports what happened and why markets reacted; it is not a recommendation to buy, sell or hold any security.

Sources

Reuters via KTWB — FTC to sue to block Cintas-UniFirst deal, Semafor reports
Global Banking & Finance — FTC set to sue to block $5.5B Cintas-UniFirst deal, shares fall
The Motley Fool — Stock Market Midday, Oct. 27: UniFirst and Cintas dropped on FTC reports

FAQ

Has the FTC already sued to block the Cintas-UniFirst deal?

No. Reuters, citing Semafor, reported the FTC has indicated it will sue, but the agency has not yet voted on whether to sue, and no filed lawsuit was reported.

How big is the Cintas-UniFirst deal?

It is a $5.5 billion cash-and-stock acquisition agreed in March, combining two of North America's largest workwear and facility-services providers.

Why did UniFirst shares fall more than Cintas shares?

UniFirst fell about 8% versus about 5% for Cintas. Target-company shares usually carry a takeover premium, so they tend to fall further when a deal's completion looks at risk.

Why does the FTC have concerns?

According to the report, FTC staff are concerned about the combined market share of Cintas and UniFirst and what that could mean for competition among workwear and facility-service providers.