Twitter revealed in its earnings report that it spent a combined $86.6m to acquire William Morris Endeavor-backed Niche and Periscope earlier this year.

Novo Seeds, Lundbeck, Merck and Astellas all exited EpiTherapeutics after it was acquired by biopharmaceutical firm Gilead.

The medical device developer secured funding from backers including Knight Therapeutics as it went public in Canada through a reverse takeover.

The newly formed pharmaceutical company, backed by investors including Novo, also raised $40m to advance its lead product through clinical trials.

Nanyang Technological University-spinout NanoSun faces acquisition from US-based investment firm Raffles Capital Group.

CEO Rahul Sood confirmed Tabcorp's investment in the eSports startup, which launched its platform in partnership with the gambling business this week.

Singapore Telecommunications has exited travel e-commerce company Flocations, which raised almost $600,000 in 2012, through an acquisition by Venture Republic Group.

Stanford University cancer screening spinout CAPP Medical has been acquired by Roche.

The pharmaceutical company, which invested $45m in Quanticel in 2011, will pay $100m up front and up to $385m in milestone payments.

Oxford University Press bought the High-Tech Gruenderfonds-backed online language learning service for an undisclosed sum.