Carl Icahn has a big new position

Legendary investor Carl Icahn just announced a new position in Allergan Pharmaceuticals.We have recently acquired a large position in Allergan $ACT & are very supportive of CEO Brent Saunders. Read more: https://t.co/5OoDWo6Q0g— Carl Icahn(@Carl_C_Icahn) May 31, 2016
Allergan has been very popular on Wall Street.
Back in 2014 billionaire hedge fund manager Bill Ackman tried to team up with Valeant Pharmaceuticals to buy Allergan in a hostile takeover. It instead agreed a deal with Acta