The Pearson-backed adaptive learning company took its overall funding to almost $150m in a round expected to close at about $47m.

Knewton, a US-based adaptive learning technology producer backed by educational services company Pearson, has raised $42.3m in a series F round expected to close at $47.3m, according to a regulatory filing.

The round is being led by investment firm Sofina and so far also includes existing investors Atomico, Accel Partners, Bessemer Venture Partners, FirstMark and Founders Fund, Knewton said in a statement yesterday.

Founded in 2008, Knewton provides software that can help personalise digital course materials for K-12 and university…