The Securities and Exchange Commission has launched an inquiry into Apple supplier GT Advanced Technologies. The New Hampshire company, which was to furnish sapphire glass for Apple products, disclosed in a regulatory filing that the federal regulator is conducting an inquiry into trading activities around the company’s stock going back to January 2013, before it secured its contract with Apple. It is unclear if the inquiry will look at GT Chief Executive Officer Thomas Gutierrez’s sale of more than 9,000 shares of the company’s stock for $160,000 a month before the bankruptcy filing set the company’s stock plummeting. The company, which said it is cooperating fully with the inquiry, has previously said the trade was part of a prearranged plan.
This article originally appeared on Recode.net.