American Express, Interpublic, US Cellular and Verizon exited the advertising platform developer last year in an acquisition by NinthDecimal.

Stanford University is set to exit video telematics system developer SmartDrive, which has agreed to be purchased after raising at least $265m.

Naspers and Rand Merchant Investment both exited digital asset marketplace and wallet Luno, which has been bought by fellow investor Digital Currency Group.

Wabco and Michelin North America are set to exit video telematics system developer SmartDrive, which has agreed to be purchased after raising at least $265m.

KAR Auction Services has agreed to pay $425m to buy the online used vehicle marketplace, which had raised about $50m from investors including Renren.

Progress intends to buy software development technology producer Chef for $220m in cash, following $105m in funding from backers including HPE and Citi.

Telefónica-owned ElevenPaths has bought cybersecurity training service iHackLabs, which received funding from Telefónica's Wayra unit in 2018.

Grifols has acquired its existing portfolio company Alkahest, five years after buying a 45% stake in the Stanford University spinout.

Grifols agreed the deal five years after supplying $50m in equity and development financing for the neurodegenerative disease therapy developer.

Digital marketing platform developer Optimizely has agreed to be bought after raising $200m from investors including Citi, Salesforce, Accenture and Alphabet.