Blackout Period
A blackout period is a defined stretch of time during which a company's policy limits or forbids certain actions, most commonly the buying or selling of company securities by insiders such as executives, directors, and certain employees. The restriction is typically intended to reduce the risk that trades occur while a person may hold material non-public information, such as around quarterly financial results. The same term is also used in other contexts, such as retirement plans, where participants may be temporarily unable to change their investment allocations.
A blackout period is a policy-defined interval during which specified actions are restricted or prohibited. In the securities compliance context, it refers to windows established under a company's insider trading policy during which covered persons (such as directors, officers, and designated employees) may not transact in, or in some policies exercise options on, the company's securities. Quarterly blackout periods are commonly tied to the fiscal calendar; for example, one company policy provides that quarterly blackout periods begin at the end of the fifteenth day of the third month of each fiscal quarter and end at the start of the second full trading day (or comparable defined point) after the release of quarterly results (see Source 1). The term also has distinct applications outside securities trading: under retirement plan administration, a blackout period is an interval during which 401(k) plan participants cannot make changes to their investment allocations (Source 3), and certain institutions such as Federal Reserve officials observe communication blackout periods around policy meetings (Source 5). Because scope, timing, and covered persons are set by each organization's policy and by applicable law, exact parameters vary by entity and jurisdiction. This entry is educational and is not a substitute for advice from qualified legal counsel; specific policy terms and legal obligations should be confirmed against primary sources and applicable regulation.
Why it matters
Blackout periods sit at the intersection of securities law compliance and internal policy governance. Because insiders such as executives and directors often have access to material non-public information, particularly in the run-up to quarterly earnings releases, unrestricted trading during those windows creates elevated exposure to insider trading liability for both the individual and the organization. A clearly defined blackout period is intended to reduce that risk by removing the opportunity to transact during the intervals when the likelihood of holding undisclosed material information is highest.
For compliance and ethics programs, blackout periods are a control mechanism rather than a standalone solution. They are typically one element of a broader insider trading policy that also addresses pre-clearance procedures, the identification of covered persons, and the handling of material non-public information. A blackout period restricts when covered persons may act, but it does not by itself determine whether a given piece of information is material or ensure that all covered persons are correctly identified. Its effectiveness depends on accurate scoping, timely communication of the applicable dates, and enforcement.
The term also carries distinct meanings outside securities trading, which is a common source of confusion. In retirement plan administration, a blackout period refers to an interval during which 401(k) participants cannot change their investment allocations, and certain institutions such as the Federal Reserve observe communication blackout periods around policy meetings. Programs should be precise about which meaning is intended in a given policy or training context, because the legal obligations and affected populations differ substantially across these uses.
Who it's relevant to
Inside Blackout Period
Common questions
Answers to the questions practitioners most commonly ask about Blackout Period.