Bristol-Myers Squibb has agreed to buy the cancer specialist just two months after its series B round, in a deal that will involve $800m in cash upfront.

Alzheimer's drug developer Heptares has been acquired by pharmaceutical company Sosei, providing exits to corporate backers Novartis and Takeda.

Itochu and Mitsubishi UFJ both exited the online flash sales company in a $14.8m purchase by internet company Mixi.

Samsung acquired the mobile commerce technology provider for an undisclosed sum, giving exits to Visa and General Electric subsidiary Synchrony Financial.

Existing investor British Gas has purchased the connected home company for $100m.

Revealed last week to be in discussions for a merger, the two companies have confirmed that they have agreed on the deal.

Softbank and Alibaba-backed Kuaidi Dache and Tencent-backed Didi Dache are considering a merger, in a deal that would cover a 95% share of the ride-sharing market in China.

GlaxoSmithKline originally invested in the vaccine developer in 2012.

Facilitating brand partnerships with social media celebrities, Niche raised approximately $3m.