Rule 10b5-1 Plan
A Rule 10b5-1 plan is a written trading plan that a corporate insider sets up in advance, often as an arrangement with a broker, specifying predetermined instructions for buying or selling company stock. Because the trades follow instructions set before the insider had any confidential company information, the plan is intended to provide a legal defense against accusations of insider trading. This entry is educational and not a substitute for advice from qualified legal counsel.
A Rule 10b5-1 plan is a written securities trading plan structured to comply with Rule 10b5-1(c) under Section 10(b) of the Securities Exchange Act of 1934 and Rule 10b-5. When properly established and maintained, it provides an affirmative defense to insider trading liability by demonstrating that trades were executed pursuant to predetermined instructions (as to amount, price, and date, or a written formula/algorithm) adopted before the person became aware of material nonpublic information. The rule and its conditions, including provisions addressing plan modifications such as the substitution or removal of an executing broker, were amended by the SEC effective in the period following the December 2022 adopting release; practitioners should confirm current conditions, cooling-off periods, and certification requirements against the primary regulatory text, as specific figures and effective dates require verification against the applicable rule. The affirmative defense is jurisdiction-specific to U.S. federal securities law and is not a guarantee against liability; its availability depends on strict adherence to the rule's conditions and good-faith operation of the plan.
Why it matters
Insider trading enforcement is one of the highest-profile areas of U.S. securities law, and corporate insiders, officers, directors, and employees with access to material nonpublic information, face genuine legal exposure whenever they buy or sell company stock. A Rule 10b5-1 plan matters because it offers one of the few structured mechanisms recognized under U.S. federal securities law for insiders to trade while reducing the risk that those trades will be characterized as improper. By committing to trading instructions before becoming aware of confidential information, an insider can point to a predetermined arrangement rather than an opportunistic decision, which is the basis for the affirmative defense the rule provides.
For compliance and legal teams, the plan is significant precisely because the defense is conditional, not automatic. Rule 10b5-1(c) sets specific requirements, and the SEC amended those conditions through the adopting release issued in December 2022, adding requirements that practitioners commonly reference as cooling-off periods and certifications. Because exact figures, effective dates, and current conditions require verification against the primary regulatory text, programs cannot rely on general summaries; they must confirm the operative requirements against the applicable rule. A plan that fails to meet the rule's conditions or that is not operated in good faith may not deliver the intended protection.
It is important to be clear about what the plan does and does not do. A Rule 10b5-1 plan is intended to provide an affirmative defense under U.S. federal securities law; it is not a guarantee against liability and is jurisdiction-specific. Its value depends entirely on strict adherence to the rule's conditions and on the plan being adopted before the insider possessed material nonpublic information. This entry is educational and does not substitute for advice from qualified legal counsel, which should be engaged when designing or reviewing any such arrangement.
Who it's relevant to
Inside Rule 10b5-1 Plan
Common questions
Answers to the questions practitioners most commonly ask about Rule 10b5-1 Plan.