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Uber’s CEO Travis Kalanick has resigned effective immediately, following an indefinite leave of absence that was announced just last week. Kalanick said that the leave of absence was to grieve for the recent death of his mother.

The New York Times reported that five of Uber’s major investors had called for Kalanick’s resignation earlier on Tuesday, including venture capital group Benchmark which is one of Uber’s biggest shareholders. An Uber spokesperson confirmed the NYT‘s report with Ars.

Kalanick will remain on Uber’s board of directors, and he still controls a majority of the company’s voting shares; he’ll still be a key player in future decisions, including the hiring of a new CEO.