Warren Buffett’s Berkshire Hathaway bought 75 million shares of Apple in the first quarter, but Mario Gabelli, a Berkshire shareholder, said the Oracle of Omaha should consider buying unknown, under-the-radar stocks instead.

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“I have a list of anything to do with companion pets,” Gabelli told FOX Business’ Liz Claman during an interview in Omaha, Nebraska, a day before Saturday’s annual Berkshire shareholders meeting. “Pet parents are the products of the day.”

Gabelli, chairman and CEO of Gamco Investors, pointed to Blue Buffalo, a pet food company acquired by General Mills. Although General Mills’ stocks tumbled after the acquisition on fears it had paid too much, the addition of Buffalo Blue ended up bolstering the company’s worth, according to Gabelli.

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