Lyncean, based on research at Stanford University and its SLAC National Accelerator Laboratory, has raised $13.8m in a first close of its series B round from backers such as Intel.

Stanford-StartX Fund has contributed to a $15m series B round for Fictiv, which also attracted commitments from Intel Capital and Bill Gates.

Echo Health Ventures was among the series B investors as medical engagement app developer mPulse Mobile took its total funding to $25m.

The Amazon-backed baby monitor developer will use the proceeds to support the launch of two new products this year.

Allianz X has led a round that will support Simplesurance's expansion into Japan, the home of fellow investor Rakuten Capital.

The apartment manager has raised series C1 funding from investors including Greentown Service Group, Galaxy Holdings, SIG and Legend Capital.

The social commerce platform, backed by Tencent and Bertelsmann, has hired Morgan Stanley, Credit Suisse and China Renaissance as underwriters for its initial public offering.

Amgen Ventures and M Ventures returned to reinvest in Akili Interactive Labs, a developer of game-based treatments for cognitive conditions.

The AMT, Accuron and Tianda Pharmaceuticals-backed cancer drug developer raised half of its initial target for the offering.

Walmart invested in the e-commerce platform at a $20.8bn valuation, allowing SoftBank, Naspers and eBay to achieve billion-dollar returns.