And Warren Buffett, it seems, has taken notice. Over the past few years, his holding company, Berkshire Hathaway Inc. (NYSE:BRK.B), has quietly accumulated 18.6 million STORE Capital units. At current prices, the value of his stake now tops $696.6 million. (Source: " Store Capital Corp (STOR) – Hedge Fund Holdings ," Insider Monkey, last accessed February 14, 2020.)