InsidersTradesSigma
Insider Trading & Regulation
A formal written notice filed by an insider establishing a binding commitment to execute a predetermined securities trading program under Rule 10b5-1(c), which provides an affirmative defense against insider trading liability if the plan was adopted in good faith without knowledge of material nonpublic information.
A 10b5-1 trading plan adoption notice documents the insider's intent to enter into a binding commitment under SEC Rule 10b5-1(c), which permits officers, directors, and other insiders to establish predetermined trading schedules that operate as an affirmative defense against insider trading prosecution. The plan must specify the amount, price, and date of transactions and must be entered into in good faith without knowledge of material nonpublic information at the time of adoption. Once adopted, the insider loses discretion over execution, and transactions proceed automatically according to the plan terms, provided the plan remains in effect and the insider does not terminate or amend it in violation of cooling-off period requirements.
From a compliance and surveillance perspective, 10b5-1 plan adoption notices represent structured, pre-committed trading activity that reduces discretionary insider trading risk. However, these notices must be monitored for potential abuse patterns, including repeated adoptions at strategically timed intervals, amendments designed to circumvent blackout windows, or overlapping plans that create layered execution strategies. Quantitative insider scoring systems must distinguish between genuine good-faith trading plan activity and potentially opportunistic adoption patterns that correlate with material nonpublic information cycles.