Ackman said billionaire investor Warren Buffett — whose Berkshire Hathaway is Kraft's largest shareholder — was the catalyst for Pershing Square's decision to buy Kraft shares.
"[Buffett] said Kraft shouldn’t issue too many shares—that was the big risk," he said. "Once he said that, we thought the likelihood of that happening was very small and we started building our stake in the company."
"You’re buying Kraft at less than 15 times earnings at over 4 percent dividend yield and they’re buying one of the greatest businesses of all times.”
Ackman’s firm Pershing Square has a 2 percent stake in Kraft as of last week and plans to purchase more shares.
"These are very high margin businesses," he said. "What Kraft gets is an improved global distribution...If you look at the Kraft brand, it’s an incredible collection of the best brands."
"The other opportunity is, we have two businesses, both are underearning, they’re both not achieving what they should be in terms of margins...and I think the combined business has synergy as well."
In the last few months, Ackman said his firm bought shares of Nestle, ADP , McDonald’s .
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Pershing Square disclosed a 2 percent stake in Kraft last week. No other information was immediately available for Ackman or his firm.