This casebook focuses on federal securities litigation and enforcement, an area of law that encompasses private litigation, Securities & Exchange Commission (SEC) enforcement, criminal enforcement by the Department of Justice (DOJ), and securities arbitration. The fourth edition incorporates developments since 2011. These include the Jumpstart Our Business Startups (JOBS) Act of 2012 as well as numerous major Supreme Court decisions that appear as principal cases – Salman v. United States; Omnicare, Inc. v. Laborers District Council Construction Industry Pension Fund; Halliburton Co. v. Erica P. John Fund, Inc. (Halliburton II); Chadbourne & Parke LLP v. Troice, and Amgen, Inc. v. Conn. Ret. Plans & Trust Funds.