c. (NYSE: AA) - Long 9th Annual Pershing Square Challenge Finalist McCoy Len, CFA Austin Kim mjenl7fggsb.columbia.edu akim I [email protected] Audun Nordrveic anordt. Fxerprfve Summar), I) Robust margin improvement potential (the largest business line in the value-added segment. Arconic. has a 10% EBIT