This thoroughly revised and updated text is for use in law school classes on insider trading, securities regulation, or business associations. In a thorough yet compact fashion, it offers a clear and direct exposition of the law and policy concerns raised by this important and high-profile area of the law. The author provides sufficient detail for a complete understanding of the subject without getting bogged down in minutiae. Faculty interested in teaching a short course on insider trading or making insider trading a major part of a course in securities or corporate law will find the text highly teachable, while students staking such a course using other materials will find it a useful study aid.