Joanne D Smith, EVP & Chief People Officer at Delta Air Lines (NYSE:DAL), reported an insider sell on October 15, according to a new SEC filing. What Happened: Smith’s recent move involves selling 3,431 shares of Delta Air Lines. This information is documented in a Form 4 filing with the U.S. Securities and Exchange Commission on Tuesday. The total value is $173,131. The latest market snapshot at Wednesday morning reveals Delta Air Lines shares up by 4.36%, trading at $55.03. Delving into Delta Air Lines’s BackgroundAtlanta-based Delta Air Lines is one of the world’s largest airlines, with a n…