United Therapeutics Corporation (NASDAQ:UTHR – Get Free Report) COO Michael Benkowitz sold 14,625 shares of the stock in a transaction dated Tuesday, January 20th. Michael Benkowitz also recently made the following trade(s):Get United Therapeutics alerts:On Tuesday, January 20th, Michael Benkowitz sold 7,875 shares of United Therapeutics stock. On Monday, January 26th, Michael Benkowitz sold 22,500 shares of United Therapeutics stock. On Monday, January 12th, Michael Benkowitz sold 22,500 shares of United Therapeutics stock. On Monday, January 5th, Michael Benkowitz sold 14,625 shares of United Therapeutics stock.