Berkshire’s annual shareholder meeting in Omaha, Neb., was held earlier this month. Photo: Madeline Cass for The Wall Street JournalWarren Buffett ’s company spent the first quarter opening a new position in Capital One Financial and adding to its already large holdings of Bank of America and Apple . A regulatory filing released Monday showed Berkshire Hathaway trimmed its stakes in Chevron , General Motors , Amazon.com and Activision Blizzard , among other companies. It dumped the remainder of its stakes in Taiwan Semiconductor Manufacturing , Bank of New York Mellon , U.S. Bancorp and RH , the home-furnishings company formerly known as Restoration Hardware.

---