Select Medical Holdings Corporation Announces Results For Its First Quarter Ended March 31, 2024 and Cash Dividend PR Newswire MECHANICSBURG, Pa., May 2, 2024 MECHANICSBURG, Pa. , May 2, 2024 /PRNewswire/ -- Select Medical Holdings Corporation ("Select Medical," "we," "us," or "our") (NYSE: SEM) today announced results for its first quarter ended March 31, 2024, and the declaration of a cash dividend. For the first quarter ended March 31, 2024, revenue increased 7.4% to $1,788.8 million ,...