Celtic Intermediate Corp. completed its acquisition of Boston-based health services provider Civitas Solutions Inc. for $17.75 per share in cash.

Celtic Intermediate is an affiliate of private equity firms Centerbridge Partners LP and The Vistria Group LLC.

Under the terms of the transaction, Civitas will merge with Celtic Tier II Corp., with Civitas as the surviving entity and becoming a unit of Celtic Intermediate Corp. The deal was approved Civitas shareholders.

As a result of the completion, trading of Civitas' common stock on the NYSE has been suspended.

Civitas provides health and human services to individuals with intellectual, developmental, physical or behavioral disabilities and other special needs.