c3ai shares are taking a beating friday pressured by a negative research note from deutsche bank analyst patrick colville who cut his rating on the stock to sell from hold with a new price target of 18 down from 36 a provider of artificial intelligence software applications for enterprise customers c3ai ticker ai posted financial results earlier this week that were generally well received for the january quarter the company posted revenue of 698 million up 42 from a year ago and ahead of both the company’s