Boxwood Merger Corp. (Nasdaq: ATCX) is a blank-check company that completed its initial public offering in 2018 with a focus on the infrastructure and technical services sector. The company filed an S-4/A amendment with the SEC on November 9, 2020, under accession number 0001213900-20-035984, in connection with its proposed business combination with Atlas Technical Consultants, a provider of infrastructure, environmental, and geotechnical services to government and commercial clients across the United States. The S-4/A represents a material update to the merger registration statement filed ahead of shareholder approval. For full filing history, sponsor details, deal timelines, and analytics on Boxwood Merger Corp. and the broader SPAC market, sign up for access on SpacDesk.