The city received its own subpoena from the Northern California grand jury for records relating to Uber's activities.
Chinese firms' long hunt in the US is becoming more elusive and investors are moving to Israel.
The social media firms' shares fell to $17.66, just above its IPO price of $17.
The South Korean firm announced an executive reshuffle following the arrest of Jay Y Lee.
Rachel Whetstone quits, weeks after two of Uber's high-level executives announced their plans to leave.
Former Ericsson CEO Hans Vestberg joins Verizon to lead a team building out its fibre network infrastructures amid growing competition.
The mobile games company plans to have the second-largest IPO in South Korea.
The home-renting site empowers Kenyan women to earn money, with one-third of female hosts' annual household expenditure coming from Airbnb.
Snap shares open at $24 on the New York Stock Exchange after pricing at $17 per share.
Car-hailing platform Snapp's mother company, Iran Internet Group, secures fresh funding from MTN Irancell.
Some 24% of US tech workers surveyed feel they had been discriminated against at their current companies.
The engineering group successfully completes the first test on gas turbine blades produced wholly by metal-based 3D printing.