Levi & Korsinsky, LLP announces it has commenced an investigation of Express Scripts Holding Company ("Express Scripts") (NASDAQ:ESRX) concerning possible violations of federal securities laws. On April 24, 2017, Express Scripts shares fell over 15% in after-hours trading when the Company announced that it is losing its biggest customer, Anthem Inc. Anthem accounted for about 18 percent of Express Scripts' first-quarter revenue in 2017. Anthem has filed a suit against Express Scripts over alleged overcharging. To obtain additional information, go to: http://zlk.9nl.com/espress-scripts or contact Joseph E. Levi, Esq. either via email at firstname.lastname@example.org or by telephone at (212) 363-7500, toll-free: (877) 363-5972. Levi & Korsinsky is a national firm with offices in New York, Connecticut, California and Washington D.C. The firm's attorneys have extensive expertise in prosecuting securities litigation involving financial fraud, representing investors throughout the nation in securities and shareholder lawsuits. Attorney advertising. Prior results do not guarantee similar outcomes.