Richard Wallgren is executive vice president of sales and marketing at Macklowe Properties, overseeing sales, marketing and the design of several of the firm's high-profile construction projects, including at 432 Park Avenue and 737 Park Avenue.

Wallgren's first job in real estate was at luxury real estate brokerage firm Brown Harris Stevens as director of sales, overseeing $2 billion in sales at the highly financially successful (and pricey) 15 Central Park West. He also personally owned a unit in the building, once the most expensive in Manhattan, which in 2013 he sold for twice what he paid. He also oversaw sales for Time Warner Center Condominiums after the buildings were completed.

Wallgren didn't start out in real estate but switched careers from investment banking, where he had worked handling commercial mortgages at Solomon Brothers and Union Bank of Switzerland. Wallgren graduated with a degree in finance from Babson College and has served on the board of non-profit Village Care of New York, which provides community services for seniors and those with chronic healthcare needs.