Uber faced a year of mounting scandals and regulatory battles after Burghardt signed on last September as policy and communications chief.
The pan-European Stoxx 600 closed 0.16 percent higher with sectors pointing in different directions.
European stocks eked out slight gains by the close on Tuesday as political concerns eased and investors digested new data releases.
European stocks closed largely flat Tuesday afternoon, with the pan-European Stoxx 600 down 0.04 percent.
German industrial group Siemens is likely to decide on Tuesday to pursue a multibillion-dollar rail merger with French rival Alstom rather than Canada's Bombardier.
German industrial group Siemens plans an IPO of its healthcare unit, expected to value the business at up to 40 billion euros ($47 billion), in the first half of 2018, it said in a statement on Thursday.
Bourses in Europe closed sharply lower on Friday as euro strengthened and fresh corporate earnings failed to boost sentiment.
Amazon keeps staffing up with medical experts, and has just hired the head of Box's health group.
Ninety percent of corporate decisions about job investment and expansion are being made using online profiles of America's communities.
The company said it became an unwitting paw in a scheme to evade sanctions against Russia, The New York Times reports.
Southeast Asian nations face a historic opportunity to surpass their developed peers in technological innovation.
This weekend, hordes of foreign diplomats and business leaders are expected to descend on Beijing for a meeting on the "One Belt, One Road" policy.
"The main challenge is… to get people who can cope with digital," said Philippe Cochet, GE's chief productivity officer.
ABB's move to acquire Austrian automation group B&R will strengthen its number two position and bring it closer in line with Siemens, ABB CEO told CNBC.
Overseas companies that invest in the UK issued a flurry of warnings about the threat Brexit poses to their businesses, the FT reports.
German Chancellor Angela Merkel said she was informed of a winter storm by U.S. President Donald Trump.
"We're making a lot of money in Europe," says the CEO of a major investment banking advisory firm.
ABB reported an end to its almost two-year decline in order intake by posting a small increase in new business.
European markets closed higher on Wednesday as investors focused on corporate earnings.
The chief executive of Germany's Siemens is worried about developments in the United States since Donald Trump took office as president, he said on Wednesday.