The immuno-oncology drug developer, backed by several pharmaceutical firms, has raised $55m in an IPO that saw it float substantially below its $14 to $16 range.

Coller Capital, HarbourVest Partners and Lexington Partners have reportedly requested information on a planned sale of stakes collectively worth up to $1bn.

Stanmore Implants is acquired by Stryker Corporation, providing an exit to Imperial Innovations.

Intrasoft Technologies received funding from Intel Capital in 2007, and the corporate venturing unit has now sold a 5.1% stake in the listed company.

The sports marketing platform is planning to float in China, providing an exit to shareholders including sporting apparel producer Guirenniao.

The two Australia-based, Rocket Internet-backed grocery e-commerce businesses have merged into a single company that will operate as ShopWings.

Hearst-backed vintage goods auctioneer Auctionata has agreed to merge with contemporary art auction platform Paddle8 to target the sub-$500,000 market.

The biosimilar developer, backed by Strides Arcolab, floated at around half the price of its range having first filed for a $115m initial public offering in January 2016.

The corporate-backed pharmaceutical company has postponed an initial public offering for the second time, a week after it set the terms.

Naspers-backed hyperlocal marketplace app Letgo has absorbed the US operations of Spain-based competitor Wallapop, picking up $100m from existing backers in the process.