Watermark Bank would focus on business banking and entrepreneurs, with technology and concierge services designed to target those customers.
State Bank popped up on the Houston company’s radar eight years ago, but management waited until now to strike.
The Houston company had been an interested, but selective, acquirer before announcing this year's biggest bank deal.
The investment bank agreed to buy Business Bancshares in St. Louis.
A group, led by former community bank CEO Dave Mallett, is planning Ohio State Bank in Columbus.
Financial Institutions agreed to buy HNP Capital, a wealth management firm near Rochester.
The northern Virginia company will also gain more branches around Washington as part of the $33 million deal.
The serial acquirer is buying Delaware Place Bank, which is less than 1% of its size.
The $350 million acquisition is among the biggest bank mergers announced so far this year.
Capitol Federal will enter commercial lending for the first time in its 125-year history after it buys Capital City Bank.