A major Yahoo shareholder has asked for a review of how its votes were cast in last week's re-election of the Internet company's board, raising questions about whether the opposition to the directors may have been understated. Capital Research Global Investors, which owns a 6.2% stake in Yahoo, demanded the review Monday, Capital spokesman Chuck Freadhoff said. Capital World Investors, a related fund that owns nearly 10% of Yahoo's stock, didn't make the same request.

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