Natus Medical Inc., a provider of medical devices for newborn care, said Wednesday that it completed the acquisition of privately held Sonamed Corp. for $9 million.
With the acquisition, Natus gains Waltham, Mass.-based Sonamed's products that are primarily used to test for hearing loss in newborns, such as the Clarity Screener.
Shares of Natus fell 27 cents to $20.99 in midday trading.