Novo-backed Tobira, which failed to go public last year, plans to merge with another pharmaceutical company, Regado Biosciences, whose stock has fallen to about $1.00.

Bellerophon, which was spun out of biopharmaceutical company Ikaria last year, has filed for an initial public offering on Nasdaq.

The Hubert Burda-backed online handmade goods marketplace has raised more than $90m in venture capital over the last decade.

Social network Twitter has reportedly entered talks to acquire the Times Internet-backed mobile marketing startup for up to $40m.

The restaurant listings service, which is majority-owned by Info Edge, is raising the funding in the aftermath of its acquisition of US-based rival Urbanspoon.

The Genomic Health-backed genetic testing company intends to raise $86m from an initial public offering on the New York Stock Exchange.

Diagnostic testing company Adaptive has bought Celgene-backed blood cancers test developer Sequenta in a deal backed by $94m of private equity money.

Juno Therapeutics completes initial public offering, with stocks soaring.