Carl Icahn has taken some time out from his chummy relationship with President Trump to do some stock buying. The New York-based activist investor increased his holdings in Herbalife (HLF) and Hertz (HRI) . The Herbalife position might rub fellow billionaire Bill Ackman the wrong way - the pair have had a public feud over it.
Icahn has been tapped by the president as a special adviser on regulatory reform. Senate Democrats this week warned his involvement in the Trump administration presents an "unacceptable risk" for conflicts of interest.