NEW YORK, Aug 13 : Bill Ackman unveiled six new holdings, including Netflix, Visa and Mastercard, marking the billionaire investor's biggest portfolio overhaul in years.Ackman said on Thursday he acquired shares starting in the second quarter that will be held in his investment funds, including his newest off

The hedge fund also disclosed new positions in Visa, Mastercard, S&P Global, Intercontinental Exchange, and Alcon

NEW YORK, Aug 13 : Bill Ackman unveiled six new holdings, including Netflix, Visa and Mastercard, marking the billionaire investor's biggest portfolio overhaul in years.Ackman…