Firm: Pershing Square Capital Management

Current title: Founder and managing partner

Born: May 11, 1966, New York

Education: Bachelor's degree from Harvard College, 1988; MBA from Harvard Business School, 1992

Career history: Co-founded Gotham Partners, a public and private equity firm, 1992 to 2003; managing partner of Pershing Square, an activist hedge fund, 2003 to present

Drives: Volvo Cross-Country SUV

Favorite vacation spot: Anyplace warm

Most admired people: His father, Lawrence Ackman, and investor Warren Buffett

Hobbies: Tennis