Investor and philanthropist David Rubenstein is a co-founder of the private equity firm the Carlyle Group, which recently went public.
May 3, 2012The Carlyle Group's logo is displayed on the exterior of the Nasdaq MarketSite in New York. Carlyle sold 30.5 million shares at $22 each, below the initial public offering's proposed $23 to $25 range, according to a statement. Scott Eells/Bloomberg
David Rubenstein, a co-founder and the public face of the Carlyle Group, spends his free time and money on missions such as repairing the Washington Monument after an earthquake and rescuing the Magna Carta from the auction block for the National Archives.