EMBL-backed Arsanis hopes to sell 3,125,000 shares priced at $15 to $17 and raise a total of up to $61m in its initial public offering.

Imaging technology provider InVisage has been bought by Apple for an undisclosed sum allowing Nokia, Intel and China Oceanwide to exit.

The board has recommended Touchstone shareholders accept the $641m all-shares offer from commercialisation peer IP Group before Touchstone ceases trading on Aim on December 11.

Cheetah Mobile and Legend Capital are among the investors exiting music-based social media app Musical.ly in a purchase by Bytedance.

Proofpoint will purchase fellow cybersecurity software provider Cloudmark in a $110m cash deal that will allow Nokia and Sumitomo to exit.

Unilever Ventures had held a majority stake in smoothie brand Froosh since 2008, but has exited through an acquisition by Fazer for an undisclosed sum.

Northeastern University cosmetics-focused artificial intelligence spinout Giaran has been acquired by Shiseido Americas for an undisclosed sum.

The fabless semiconductor producer, which counts GlobalFoundries, Cisco, Intel, LSI and Xilinx as investors, has gone public in a $61.4m initial public offering.

Continental has acquired Argus Cyber Security, which had raised about $30m in venture funding, in a deal that reportedly valued the company at $400m.

The Intel Capital-backed gaming equipment and accessories provider will float near the top of its range in Hong Kong.