Uber board fighting getting nasty: A group of minority shareholders in Uber delivered a petition to majority shareholder Benchmark Capital yesterday asking that it sell at least 75% of its stake and step off the board. The petition is the latest act “in a boardroom drama that threatens to tear apart Silicon Valley’s most highly valued private company,” says the Financial Times. Business Insider also has the story. This comes just a day after Benchmark — which owns 20% of the ride-hailing service — filed a lawsuit against former Uber CEO Travis Kalanick for fraud. The rest of the Uber board signed a letter urging the two sides to reconcile quietly. Fortune has more.

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