BURLINGTON, N.C.--(BUSINESS WIRE)--Laboratory Corporation of America® Holdings (LabCorp®) (NYSE: LH) today announced that its Board of Directors has authorized a new stock repurchase program under which LabCorp may purchase up to an aggregate of $500,000,000 of its Common Stock from time-to-time. The Company also reported that it has repurchased $131.0 million of stock during the fourth quarter to date and has $198.2 million remaining authorization under the previously-announced existing share repurchase plan.