Prexton Therapeutics, a Parkinson's disease-focused spinoff of Merck Group that had raised $41m in funding, has agreed to an acquisition that could reach more than $1.1bn in size.

Medical University of Vienna-founded radiology image search engine creator Contextflow has been backed by investors including spinout-focused venture fund IST Cube.

The SoftBank Ventures Korea-led round increased the angling social network's total funding to $28m, though existing backer Recruit did not participate.

The Unilever-backed meal-kit delivery service has received $39.8m from Hargreave Hale, Angel CoFund, MMC Ventures and BGF Ventures to more than double its total funding.

Allegion Ventures will invest between $250,000 and $5m in physical security technology developers on behalf of its parent company.