A Practice Note that explains the mechanics of setting up an at-the-market (ATM) program and making sales as part of an ATM offering. In certain contexts, an ATM program may also be referred to as an equity dribble out program or a controlled equity offering. The Note outlines the advantages and disadvantages of ATMs and recent trends in how they have been structured and used. The Note also discusses the offering process, including SEC filings, documentation, due diligence, and sales execution. Compliance-related issues and liability considerations are also noted.