A consortium led by SoftBank Group Corp. will buy a large number of shares in Uber Technologies Inc. in a deal that values the ride-services firm at $48 billion, Uber said on Thursday, in a victory for new Chief Executive Dara Khosrowshahi.

The price is a roughly 30 percent discount on Uber's most recent valuation of $68 billion. The deal will trigger a number of changes in the way the board oversees the company, which is dealing with federal criminal probes, a high-stakes lawsuit and an overhaul of its workplace culture.

SoftBank and the rest of the consortium, which includes Dragoneer Investment Group, will own approximately 17.5 percent of Uber, a person familiar with the matter said. That stake includes a share purchase from earlier investors and employees at the $48 billion valuation, as well as a $1.25 billion investment of fresh funding at the $68 billion level.