STG Group, Inc. (Nasdaq: GDEF) is a defense technology and professional services firm that came to market through a merger with Global Defense & National Security Systems, Inc., a blank check company that completed its IPO in 2013. The SPAC was sponsored by Global Defense & National Security Holdings LLC and was structured to pursue acquisitions in the defense, intelligence, and national security sectors. The 8-K filed on July 21, 2015, under accession number 0001144204-15-043457, is a current report submitted to the SEC reflecting a material event disclosure in the period following the business combination. Sign up for full data on SpacDesk to access complete filing histories, sponsor records, and deal analytics for GDEF and the broader SPAC universe.