Andrew McDonald, a nearly 20-year veteran of Chicago-based Cushman & Wakefield, has been named chief executive of the company’s Americas division following a management shakeup.

McDonald, who will continue to be based in Los Angeles, replaces Shawn Mobley.

Mobley had been with Cushman & Wakefield for nine years, the last three as CEO.

McDonald most recently served as president of Cushman & Wakefield’s West region where he managed the company’s brokerage businesses in California, Washington, Oregon, Colorado, Arizona, Nevada, Utah and Texas.

Before that, he served as Cushman & Wakefield’s executive managing director and regional managing principal for the greater Los Angeles/Orange County region, where he oversaw eight offices.

Prior to joining Cushman & Wakefield, McDonald was with Beijing-based private equity firm ASIMCO, which was acquired by Bain Capital.

“In his nearly 20 years at Cushman & Wakefield, Andrew has been a proven leader in our firm and in the industry,” Cushman & Wakefield President John Forrester said in a statement. “In his latest role, as leader of our Americas West region, he very successfully directed the firm’s operations and services lines across California, Texas, Colorado, Arizona, Washington, Oregon, Nevada and Utah.”

In a LinkedIn post, Mobley discussed his departure.

“The last few months have brought about profound personal and professional changes for all of us,” he wrote, adding that the “disruption to our normal lives, isolation from friends, family, and colleagues, and fear of the unknown” had caused him to reflect.

He said he would be “reassessing and refocusing both my personal and professional priorities” and spending more time with select organizations, including Loyola University.

In a statement, Forrester said, “We extend our sincere gratitude and appreciation to Shawn Mobley for his accomplishments and dedication to the firm. After many years in management positions within our firm and the industry, Shawn has decided to leave Cushman & Wakefield to pursue the next chapter of his career, and we wish him well.”