Company says it is cooperating with the SEC after receiving a document request.. Agriculture company Archer Daniels Midland ADM .. placed its chief financial officer, Vikram Luthar, on administrative leave as it investigates accounting practices at the company. The Chicago grain merchant and commodity trader said that the continuing investigation centers around ADM’s nutrition business and that it follows a voluntary document request by the U.S. Securities and Exchange Commission. ADM said Luthar’s leave is pending an investigation by outside counsel and its board’s audit committee, focused on certain intersegment transactions in the company’s nutrition business. ADM said it is...