Pat Ryan, grandson of the founder of 80-year-old Ryan Cos. US Inc., will step down June 1 as president and CEO of the Minneapolis-based developer, following a succession plan that includes the promotion of Iowa State University graduate and company co-owner Jeff Smith to president, according to a release. Ryan Cos. is a major player in development projects in Greater Des Moines and across Iowa. Pat Ryan will be chairman of the company’s board of directors. Bryan Murray has been named CEO. Along with Smith and another owner, Mike McElroy, he has helped lead the company’s day-to-day operations for the last five years, according to the release. McElroy will be the company’s chief investment officer. Tim Gray, who currently chairs the company’s board of directors, will assume the title of chairman emeritus. Murray joined the company in 2009, and is currently the chief operating officer and chief financial officer leading Ryan’s construction operations and shared services functions. Smith has been with the company for nearly 32 years and is currently the national president, overseeing 15 regional offices and leading client development efforts. McElroy is currently president of real estate investments, leading real estate management and capital markets groups and has been with the company nearly 20 years. Smith is a Bettendorf native who graduated from Iowa State in 1983 with a degree in construction engineering.