James River Group Holdings Ltd. said Tuesday it delivered a notice of early cancellation of all insurance policies issued to Rasier LLC, its largest customer.

Rasier is an affiliate of Uber Technologies Inc.

James River said the policies will be canceled as of Dec. 31.

“This account has not met our expectations for profitability, and we think it best to terminate the underwriting relationship as of year-end,” said J. Adam Abram, the chairman and chief executive of James River.

“All insurance policies related to this customer are included in the company’s commercial auto line of business within its Excess and Surplus Lines segment, and a majority of the insurance policies were due to expire on February 29, 2020,” James River said.