This Primer provides a basic overview of the U.S. antitrust procedural and substantive requirements governing mergers and acquisitions to help attorneys and businesspersons with limited merger experience. Providing a grounding in ""first principles"" of merger reporting requirements and analysis, A Primer on the Law of Mergers and Acquisitions complements the Antitrust Section's two in-depth handbooks (The Merger Review Process, Second Edition and Mergers and Acquisitions). The Section of Antitrust Law of the American Bar Association has developed this general guide to the law of mergers and acquisitions to aid non-antitrust lawyers' and business managers' understanding of merger enforcement and principles. It is written primarily to make businesspersons aware of important factors that may significantly affect their proposed transactions. This primer is not a substitute for legal advice but, rather, is offered as background to help spot issues so that advice may be sought from an experienced attorney. The booklets are about the size of a pocket journal and have a space on the back to identify the law firm or company and contact counsel. They are available singly and, at substantial d