US FTC has reportedly told Cintas (CTAS) and UniFirst (UNF) that they will block the USD 5bln merger, Semafor reports

US FTC has reportedly told Cintas (CTAS) and UniFirst (UNF) that they will block the USD 5bln merger, Semafor reports.

An FTC move to block rather than to negotiate a remedy is the less common fork in merger review; historically, a large share of challenged deals settle through divestiture consent decrees, and an outright block signals the staff concluded no structural fix cures the overlap, here presumably route density in uniform rental and facility services. The immediate tell is whether the agency actually files in court, since reported threats to sue have in past episodes been used as leverage to extract concessions and not all of them reach litigation. The deal spread behaves accordingly: a reported block without a filed complaint tends to widen the gap between UniFirst's price and any implied offer value, while the acquirer's shares have in comparable episodes risen modestly on relief that leverage or overpayment risk is off the table. Attribution matters here; a single-outlet report citing unnamed sources is the kind that has on occasion been walked back or reframed, so confirmation from the companies or a second outlet is the gating event. Worth watching is the go-shop or break-fee mechanics and whether Cintas elects to litigate, since merging parties that fight the FTC in court have faced long timelines and a mixed record.