Finally, Uber founder Travis Kalanick resigns as C.E.O

  Travis Kalanick stepped down Tuesday as chief executive of Uber, the ride-hailing service that he helped found in 2009 and built into a transportation colossus, after a shareholder revolt made it untenable for him to stay on at the company.

Mr. Kalanick’s exit came under pressure after hours of drama involving Uber’s investors, according to two people with knowledge of the situation, who asked to remain anonymous because the details were confidential.

Earlier on Tuesday, five of Uber’s major investors demanded that the chief executive resign immediately. The investors included one of Uber’s biggest shareholders, the venture capital firm Benchmark, which has one of its partners, Bill Gurley, on Uber’s board. The investors made their demand for Mr. Kalanick to step down in a letter delivered to the chief executive while he was in Chicago, said the people with knowledge of the situation.

In the letter, titled “Moving Uber Forward” and obtained by The New York Times, the investors wrote to Mr. Kalanick that he must immediately leave and that the company needed a change in leadership. Mr. Kalanick, 40, consulted with at least one Uber board member, and after long discussions with some of the investors, he agreed to step down. He will remain on Uber’s board of directors.