
Locked-Box Pricing Has Started Showing Up in U.S. Middle-Market M&A — Why the European Closing Mechanic Is Finally Catching On in 2026
For thirty years, U.S. private M&A has run on closing accounts and working-capital adjustments. In 2026, locked-box pricing — the European default — has started showing up in mid-market deal documents. Here is why, and what changes when it does.

