STG Group, Inc., trading under the ticker GDEF on Nasdaq, is a government-focused information technology and professional services company that reached public markets through a SPAC merger with Global Defense & National Security Systems, Inc., which completed its initial public offering in 2014. The company operates primarily in the defense and federal IT services sector, providing technology solutions and managed services to U.S. government and defense agency clients. On November 15, 2017, STG Group filed a Form NT 10-Q with the SEC, notifying regulators that it was unable to submit its quarterly report on time for the period ending September 30, 2017. For complete filing history, ownership data, and deal analytics on GDEF and hundreds of other SPAC transactions, sign up for full access at SpacDesk.