Carl Icahn

Carl Icahn is one of Wall Street's most successful investors and has been shaking up corporate America for decades.

Icahn's primary investing vehicle is publicly traded Icahn Enterprises. He also runs an investment fund made up of his personal cash and money belonging to Icahn Enterprises.

He spent the first months of the Trump Administration advising Donald Trump on regulatory overhaul, but left the position amid controversy.

Icahn grew up in Far Rockaway, Queens. He graduated from Princeton with a degree in philosophy in 1957.

He has donated about $200 million to what is now the Icahn School of Medicine at Mount Sinai.