Western Alliance Bancorporation (NYSE: WAL) Chairman and CEO Robert Sarver announced today that Dennis Rygwalski has been named Executive Vice President, Technology and Operations of the bank holding company. Rygwalski has over 23 years of experience in senior management in the banking and technology industries. “We are very pleased to have Dennis join our management team,” said Sarver. “Dennis has a strong track record in managing technology programs with two major regional banks. His experience in increasing operational efficiency as well as driving the creation of new systems will be important assets as we continue to grow in this fast-changing environment,” he added. Prior to joining Western Alliance, Rygwalski was Senior Vice President and Chief Technology Officer with BOK Financial since 2006. Prior to BOK Financial, he was with Exigen Group as General Manager of Financial Industry Product Development. In 1987, he joined Fleet Boston Financial, where he held several key positions during his career, including Managing Director of Business Technology Solutions, and held the title of Executive Vice President, CIO. Rygwalski began his banking and technology career in Cleveland, Ohio. About Western Alliance Bancorporation Western Alliance Bancorporation is a leading bank holding company in the Southwest with banking and financial service subsidiaries in Arizona, California, Nevada and Colorado. The company provides services to businesses, entrepreneurs, professionals, nonprofit organizations, high net worth individuals and other consumers seeking the robust product array of a national bank with the individual, personal attention of a community bank, delivered through a dedicated, local Relationship Manager.