Maneet Ahuja and Becky Quick

By CNBC hedge fund specialist Maneet Ahuja and "Squawk Box" host Becky Quick.

Activist Investor William Ackman Makes His Biggest Bet Ever
Finance

Activist Investor William Ackman Makes His Biggest Bet Ever

Ackman's firm Pershing Square Capital Management has acquired a 9.8 percent position in industrial gas company Air Products & Chemicals, a stake valued at $2.2 billion.