Investors in Hansen Medical Inc. will be allowed to proceed a Delaware Court of Chancery lawsuit alleging the California-based medical robotics firm’s $80 million squeezeout merger with Auris Surgical Robotics Inc. unfairly benefited a group of controlling stockholders who steered the deal.

Vice Chancellor Tamika Montgomery-Reeves on Monday said the proposed class had made a viable case for breach of fiduciary duty against a contingent of major shareholders, which collectively owned a majority stake in Hansen when the company was sold in 2016.