** Shares of artificial intelligence firm BigBear.ai BBAI.N rise 4.4% to $3.54 in extended trading
** Company appoints Kevin McAleenan as CEO and member of its board, effective immediately
** Current CEO Mandy Long will step down and transition to the role of company advisor
** McAleenan, at present, serves as BigBear.ai's president
** Stock had more than doubled in 2024
(Reporting by Harshita Mary Varghese in Bengaluru)
((HarshitaMary.Varghese@thomsonreuters.com))