Warren Buffett, the legendary investor known as the "Oracle of Omaha," continues to make waves in the financial world even as he approaches his mid-90s. His company, Berkshire Hathaway, has been

If you know anything about Warren Buffett, you probably greatly admire how he has increased the value of his company, Berkshire Hathaway, by an annual average of nearly 20% over close to 60 years. Buffett has bought many great companies outright and has invested in the stock of other companies.

Buffett invested in Heinz in 2013 and two years later, Heinz merged with Kraft Foods. He bought 326 million shares during this merger at a cost of around $24.6 billion. He has held on to that stake, which is now worth $11.4 billion.

One of those value plays is Kraft Heinz ( KHC 0.72%), which trades at just 9 times forward earnings and pays a hefty forward dividend yield of 5.5%. Buffett gained 326 million shares of Kraft Heinz in 2015 after driving Kraft Foods to merge with H.J. Heinz, and he hasn't ever sold a single share.