The Federal Deposit Insurance Corp had been expected to announce a deal on Sunday night, with the regulator likely to say at the same time that it had seized the lender, three sources previously told Reuters.
Deposits at regional banks have stabilized and the Biden administration can use the same tools it used in recent weeks to address financial stress if needed, she said.
The deposit slump overshadowed profits that beat expectations for the beleaguered lender, which was shored up through an injection of deposits by larger US banks last month after the collapse of two US regional lenders.