The online media company, which once counted NBC Universal as an investor, is set to be the latest in a series of big US deals for Rakuten.

University spinout energy-saving company RUMM has been acquired by UK energy supplier RWE npower.

Cambridge University spinouts and startups based in the Cambridge business and technology cluster pull in $2.08bn in March.

The Netherlands-based oncology company, backed by corporate venturing subsidiaries of Johnson & Johnson, Novartis and Pfizer, plans to float in the US later this year.

The Samsung-backed flash storage company, which closed a round valuing it at $3bn in April 2014, has begun talks with banks and plans to float later this year.

Sprinklr, which reached unicorn status last week, has bought the online community platform in a deal that will give an exit to long-term investor O'Reilly Media.

Bitcoin exchange platform Buttercoin, which raised a Google-backed seed round in 2013, will turn off its services by the end of the week.

The game streaming service, backed by HTC, AT&T, Belgacom, BT and Autodesk, will shut down by the end of the month, and sell its patents to Sony.

The Novo and Immunocore-backed cancer treatment developer has targeted $150m from a Nasdaq IPO, filing seven months after a $104m series A round.