Gail Icahn Is a Businessperson and the Wife of Carl Icahn. Gail Icahn’s Husband Is an American Businessman, Investor, and Philanthropist. He Gained Publicity for Being the Founder and Controlling Shareholder of Icahn Enterprises, a Public Company, a Holding Company with a Diverse Portfolio Based in Sunny Isles Beach, Florida. in the 1980S He Was Called a Corporate Raider, but in Later Year's He Was More Often Labeled an Activist Investor. He Is Worth 5.7 Billion Usd per Forbes.