The KDDI-backed media curation app developer has filed for an initial public offering that will reportedly value it at about $335m.

Antibody developer XO1, backed by a Johnson & Johnson-backed fund, has been acquired by another Johnson & Johnson subsidiary, Janssen Parmaceuticals.

Hearst and Amazon both exited the revenue management company after it was acquired by AppNexus, which will integrate its technology into its own platform.

Pfizer-backed Cellectis, which is developing cancer treatments, will issue 3.5 million shares and could raise about $129m.

Pulmatrix, an inhaled drug developer that had raised $65m in venture funding, will be acquired by publicly-listed Ruthigen in an all-share deal.

Seachaid Pharmaceuticals-backed Cidara, which is developing therapies to treat fungal infections, has raised $74m in the past two years.

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Salesforce-backed internet of things company 2lemetry has been bought by online retailer Amazon for an undisclosed sum.