TOKYO -- Mizuho Financial Group said Monday it will buy U.S. investment bank Greenhill & Co. for $550 million, as Japan's third-largest lender aims to expand its American presence.
Mizuho will offer $15 a share for the boutique M&A adviser, a nearly 60% premium over Greenhill's weighted average 90-day share price of $9.45. The transaction is due to close by the end of the year.
