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Misappropriation Theory

THE MISAPPROPRIATION Theory is associated with insider-trading law. It is not in the statutes, but has evolved through case law since 1981. Until federal securities laws were enacted in the 1930s, it was generally not a crime for officers, directors, or controlling shareholders to trade stock in their own corporations on the basis of inside information. This is still the situation in many other countries; it is considered to be a privilege of corporate status.

Before 1980, insider trading cases were prosecuted using Section 10(b) and Rule 10b-5, which prohibits a corporate insider from buying or selling shares in her own company based on non-public information. This is the basis for the traditional or classic theory of insider trading. The Misappropriation Theory extends insider trading cases ...

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