Tech shares have risen more than banks, utilities, health firms, energy companies or consumer brands.
Kalanick said the company would begin "actively looking" for a chief operating officer who could help write Uber's "next chapter."
Hewlett Packard Enterprise is offering $12.50 for each share of Nimble Storage, a 45.3 percent premium compared to Monday's close.
Shares of Hewlett Packard Enterprise tanked after the company reported lower-than-expected quarterly revenue and slashed its outlook.
Meg Whitman, HP Enterprises CEO, discusses the Trump administration's views on the border adjustment tax.
Meg Whitman, HP Enterprises CEO, discusses the company's first quarter earnings report and the growth trajectory.
The company reported mixed fiscal first quarter results after the bell.
Tech's biggest superstar, Elon Musk, has not yet accepted an invitation to meet with Donald Trump.
Larry Page, Tim Cook and Sheryl Sandberg will attend a tech summit with Donald Trump.
"We've got to manage that. It's part of our new reality," HPE CEO Meg Whitman tells CNBC, after it reported mixed quarterly results.
With the election over, "I'm supporting" President-elect Trump, the billionaire Republican businesswoman tells CNBC.
Hewlett Packard Enterprise CEO Meg Whitman discusses the results of the 2016 election.
Hewlett Packard Enterprise CEO Meg Whitman discusses the company's earnings release and growth plan.
These are the stocks posting the largest moves after the bell, including Hewlett Packard Enterprise, HP, Inc. and Urban Outfitters.
Hillary Clinton invited wealthy business figures Mark Cuban and Meg Whitman to Wednesday's third presidential debate.
Hedge fund billionaire David Tepper tells CNBC that a "fairly bad choice" of presidential candidates is "affecting things."
Hillary Clinton's tech plans will do nothing to help resolve the big issues tech companies would like the next administration tackle, says investor.
"I had to put country before party," the CEO of Hewlett Packard Enterprise tells CNBC.
Hewlett Packard CEO Meg Whitman weighs in on how their strategy is "very different from Dell".
Hewlett-Packard Enterprise will spin off a big chunk of its business software line-up in an $8.8 billion deal with Micro Focus International.