Operating earnings translated to $2,228 per class A share, which missed projections of $2,402 per share from analysts surveyed by Thomson Reuters.
Berkshire shares had inched higher during the trading day and then dipped after hours, following the news.
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Berkshire is a broad-based investment conglomerate whose holdings include everything from Geico insurance to Burlington Northern Santa Fe railroad to Dairy Queen. It also has stakes in a variety of other large firms.