Bill Ackman’s Pershing Square stayed highly concentrated in Q1 2026, with just five positions making up over 70% of the portfolio.
Top holdings included:
◾ $BN.TO – 18%
◾ $AMZN – 17%
◾ $UBER – 16%
◾ $MSFT – 15%
◾ $QSR – 12%
Total reported 13F AUM: $13.71B.