New York Community Bancorp’s subsidiary Flagstar Bank will operate Signature Bank’s 40 branches starting Monday, and “substantially all” of Signature’s deposits—which totaled $88.6 billion at the end of last year—will head to Flagstar, though about $4 billion in digital banking deposits weren’t included in the sale and will still be handled by the FDIC. The company also bought $38.4 billion worth of loans and other assets previously held by Signature, though some $60 billion in loans will remain with the FDIC, which took over Signature after it was shut down by New York state regulators last weekend.