Novartis invested another $11.5m in the immuno-oncology drug developer, which is also backed by Eli Lilly and Amgen, alongside the offering.

GE is selling $58m of shares in the Dell EMC spinout, which is also backed by Ford and VMware, as it prepares to float in the middle of its range.

The gut-based cancer and inflammatory disease drug developer has raised almost $170m from investors including Celgene, GV and Mayo Clinic.

The Tencent and Bertelsmann-backed social commerce platform has spoken to potential advisors and underwriters about an offering that could value it at $4bn.

The Salesforce-backed file storage platform expanded the offering after the underwriters bought an additional $113m of shares.

Barclays, BPIfrance, CLSA and unnamed existing investors have increased the communication software provider's overall funding to more than $300m.

Medtronic spinout Inspire Medical Systems, the developer of a neurostimulation device for sleep apnea, has targeted $86.3m for its IPO.

The Dell EMC spinout has set the range for an offering in which General Electric will sell up to $62m of shares.

The YY-founded live game streaming platform raised $462m from Tencent last month at a valuation of $1.16bn.

The age-related disease drug developer, which counts Mayo Clinic and WuXi PharmaTech as investors, raised $55m as recently as last month.