{固定描述} In March, Warren Buffett hinted to CNBC that Berkshire Hathaway had made a "tiny purchase" during a period of record cash holdings. Now, a recent regulatory filing may shed light on that mystery investment, offering clues about where the Oracle of Omaha is selectively deploying capital.
Warren Buffett's 'Tiny Purchase' Teased in March May Be Revealed in New Berkshire Filing - {财报副标题}
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