Insider Trading
Insider trading generally refers to buying or selling a company's stock or other securities based on important information about the company that has not yet been made public. Because this information is confidential and could affect the security's price, trading on it can give an unfair advantage over other market participants. In many jurisdictions this conduct may constitute a criminal offense, though it is important to distinguish unlawful insider dealing from the lawful, disclosed trading that company insiders may legitimately undertake.
Insider trading is the trading of a public company's securities on the basis of material, nonpublic information (MNPI) concerning that company. The concept typically hinges on two elements: the materiality of the information (its likely relevance to an investment decision) and its nonpublic status. Terminology and precise legal tests vary by jurisdiction. In US law, insider trading is addressed within the broader securities-fraud framework, with the term commonly analyzed by reference to persons having access to confidential or material nonpublic information about the issuer. In some civil-law jurisdictions the offense is codified directly by statute; the evidence notes, for example, that it is defined as a criminal offense under the French Monetary and Financial Code. A critical distinction exists between the criminal-law meaning of insider trading (which requires the applicable legal elements, such as knowing possession and use of MNPI, to be established) and the lawful form of insider transactions, in which corporate insiders may buy or sell their own company's securities subject to disclosure and other regulatory requirements. Specific definitions, thresholds, and enforcement standards should be confirmed against the applicable regime.
Why it matters
Insider trading strikes at the integrity and fairness of securities markets. When individuals trade on material, nonpublic information (MNPI), they gain an advantage over other participants who lack access to the same information, undermining the level playing field that public markets depend on. For compliance officers, investigators, and risk professionals, understanding insider trading is essential because it sits within the broader market abuse and securities-fraud frameworks that obliged entities and market participants must monitor, detect, and, where appropriate, report.
The stakes are heightened by the fact that insider trading may constitute a criminal offense in many jurisdictions, while a closely related activity, the disclosed, lawful trading that corporate insiders may legitimately undertake in their own company's securities, remains permitted subject to regulatory requirements. This distinction is critical: the presence of an insider transaction, an alert, or a suspicious pattern does not by itself establish wrongdoing. Establishing the criminal-law offense typically requires the applicable legal elements, such as knowing possession and use of MNPI, to be met, and precise legal tests vary by regime.
Because definitions, thresholds, and enforcement standards differ across jurisdictions, for example, insider trading is addressed within the securities-fraud framework in US law, while it is codified directly as a criminal offense under the French Monetary and Financial Code, professionals must be careful not to assume a single global standard applies. Applying the correct legal framework to the relevant market and conduct is fundamental to accurate analysis, monitoring, and any escalation or reporting decision.
Who it's relevant to
Inside Insider Trading
Common questions
Answers to the questions practitioners most commonly ask about Insider Trading.