WPP Digital, the digital investment arm of WPP, has acquired a minority interest in US content marketing startup, Percolate, to support a strategic partnership.

Glori Energy, backed by investors including Energy Technology Ventures, has announced a merger deal with Infinity Cross Border Acquisition Corporation.

The Kaiser Permanente-backed company, developer of treatments for heart aneurysms, raised the maximum target for its initial public offering from the initial $100m.

Opower, a GE-backed company that uses data analysis to make energy use more efficient, has raised $115.9m from an IPO that could close at more than $133m.

News Corp and IDG Ventures Vietnam were among the corporate investors to achieve partial exits in the automated advertising company's initial public offering.

Healthcare authentication and communication company Imprivata, which has raised $32m from investors including SAP Ventures, aims to generate up to $115m from its initial public offering.

UniQure, a gene-therapy company based in The Netherlands, has closed its initial public offering which raised $91.8m by selling 5.4 million shares of common stock.

The biopharmaceutical company, which has investors including the corporate venturing subsidiaries of GlaxoSmithKline and MedImmune, has secured $50m from its initial public offering.

SingTel-backed TubeMogul, developer of a platform that helps companies to brand themselves through online videos, could raise up to $75m when it floats.