Philly.com If they close above that price for 20 trading days in a 30-day window, the chemical maker can convert Buffett’s $3 billion preferred stake into common stock. The stock closed Wednesday at $53.89. Swapping the shares would cut dividend payments that Dow … Buffett faces end of $255ma year dividend chequeNew Zealand Herald Buffett faces end of $255 million a year on Dow stakeCrain’s Detroit Business Buffett faces end of $255 million a year on Dow Chemical stakeColumbus CEO |