U.S. Bancorp's U.S. Bank NA agreed to purchase Mellon 1st Business Bank in California, a unit of Bank of New York Mellon Corp.
Financial terms of the deal weren't disclosed.
U.S. Bancorp, a Minneapolis bank holding company, will acquire $3.4 billion in assets, $1.1 billion in loans and $2.7 billion in deposits.
The deal is expected to close by the end of the second quarter and be fully integrated by the end of the fourth quarter.