Berkshire Hathaway

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7. BILL GATES Bill Gates, Microsoft co-founder and director at Berkshire Hathaway, smiles during a game of bridge following the annual Berkshire Hathaway shareholders meeting in Omaha, Neb., Sunday, May 5, 2019. (AP Photo/Nati Harnik)

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3. Warren Buffett, 87, Berkshire Hathaway, $84 B Berkshire Hathaway Chairman and CEO Warren Buffett speaks during an interview in Omaha, Neb., Monday, May 7, 2018, with Liz Claman on Fox Business Network's "Countdown to the Closing Bell". (AP Photo/Nati Harnik)

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FILE - In this May, 2015, file photo, Howard Buffett smiles during the annual Berkshire Hathaway shareholders meeting in Omaha, Neb. Buffett's Foundation has contributed $55.1 million to Decatur, Ill., and its surrounding Macon County with dozens of grants. Buffet says while he plans to eventually return to his hometown of Omaha, Nebraska, his foundation will stay and continue to assist Decatur. (AP Photo/Nati Harnik, File)

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FILE - This Tuesday, July 7, 2015, file photo, shows Bank of America's corporate headquarters in Charlotte, N.C. Buffett's Berkshire Hathaway is buying 700 million shares in Bank of America, making Buffett the largest shareholder in two of the nation's largest banks. (AP Photo/Chuck Burton, File)

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FILE - In this May 2, 2016, file photo, Berkshire Hathaway Chairman and CEO Warren Buffett is interviewed in Omaha, Neb. Buffett's Berkshire Hathaway is buying 700 million shares in Bank of America, making Buffett the largest shareholder in two of the nation's largest banks. (AP Photo/John Peterson, File)

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Berkshire Hathaway Chairman and CEO Warren Buffett and his Vice Chairman Charlie Munger, in red tie, are seen on large screens, as they preside over the Berkshire Hathaway shareholders meeting in Omaha, Neb., Saturday, May 6, 2017. More than 30,000 people were expected to attend the annual Berkshire Hathaway shareholders meeting. (AP Photo/Nati Harnik)

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Warren Buffett, Berkshire Hathaway Chairman and CEO, smiles when presented with a talking Warren doll made by Genius Brands International, as he tours the exhibit floor at the CenturyLink Center in Omaha, Neb., Saturday, May 6, 2017, where company subsidiaries display their products. (AP Photo/Nati Harnik) ** FILE **

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Talking Warren Buffett dolls are offered for sale at the Berkshire Hathaway shareholders meeting as shareholders visit and shop at company subsidiaries in Omaha, Neb., Friday, May 5, 2017. More than 30,000 people are expected to attend the annual meeting, and participate in company-sponsored activities, though the main attraction is CEO Warren Buffett and Vice Chairman Charlie Munger's Q&A session on Saturday. (AP Photo/Nati Harnik)

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A image of Warren Buffett towers over Berkshire Hathaway shareholders as they visit and shop at company subsidiaries in Omaha, Neb., Friday, May 5, 2017, at the Berkshire Hathaway shareholders meeting. More than 30,000 people are expected to attend the annual meeting, and participate in company-sponsored activities, though the main attraction is CEO Warren Buffett and Vice Chairman Charlie Munger's Q&A session on Saturday. (AP Photo/Nati Harnik)

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15. Warren Buffett, 86, considered to be one of the most successful investors in the world, and as of March 2017 is the second wealthiest person in the United States with a total net worth of $78.7 billion. Buffett has been the chairman and largest shareholder of Berkshire Hathaway since 1970, and his business exploits have had him referred to as the "Wizard", "Oracle" or "Sage" of Omaha by global media outlets. He is noted for his adherence to value investing and for his personal frugality despite his immense wealth. Buffett is a notable philanthropist, having pledged to give away 99 percent of his fortune to philanthropic causes, primarily via the Bill & Melinda Gates Foundation. (Photo by Charles Sykes/Invision/AP)

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This undated image provided by The Coca-Cola Co. shows an ad for Coke products, including a can of Cherry Coke with a likeness of billionaire investor Warren Buffett, in China. Coke said it introduced Cherry Coke in China on March 10, 2017, and that the special edition cans with Buffett’s image will remain on shelves for a limited time. Buffett is a known fan of Cherry Coke, and his Berkshire Hathaway is Coke's largest single shareholder. (The Coca-Cola Co. via AP)

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FILE - In this June 14, 2016 file photo, Berkshire Hathaway Chairman and CEO Warren Buffett addresses the White House Summit on the United State of Women in Washington. Buffett is planning to release his annual letter to Berkshire Hathaway shareholders on Saturday, Feb. 25, 2017. The letter is always one of the best-read business documents every year because of Buffett's knack for explaining complex issues in simple terms and because of his remarkably successful investing record. (AP Photo/Cliff Owen)

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FILE - In this Sunday, May 3, 2015, file photo, Berkshire Hathaway Chairman and CEO Warren Buffett plays bridge outside the Borsheims jewelry store, a Berkshire Hathaway subsidiary, in Omaha, Neb. Buffett has a high-class problem: cash is piling up at Berkshire Hathaway faster than he can invest it. (AP Photo/Nati Harnik, File)

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Berkshire Hathaway Chairman and CEO Warren Buffett, 86. $65.5 Billion. (AP Photo/Andrew Harnik)

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Berkshire Hathaway Chairman and CEO Warren Buffett speaks during an interview with Liz Claman on the Fox Business Network in Omaha, Neb. (AP Photo/Nati Harnik, File)

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In this May 5, 2014, file photo, Microsoft co-founder and Berkshire Hathaway board member Bill Gates speaks during an interview with Liz Claman on the Fox Business Network in Omaha, Neb. (AP Photo/Nati Harnik, File)

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Microsoft co-founder and Berkshire Hathaway board member Bill Gates gestures during an interview with Liz Claman on the Fox Business Network in Omaha, Neb., Monday, May 5, 2014. The annual Berkshire Hathaway shareholders meeting concluded over the weekend. (AP Photo/Nati Harnik)