How a plan works
The SEC adopted Rule 10b5-1 in 2000. An insider who sets the amounts, prices and dates in advance, or hands the decisions to a broker under a formula, can trade later even if they come to know material non-public information, because the decision was made before. Executives whose pay is mostly stock use plans to sell in a steady pattern without a trading window problem.
Amendments adopted in December 2022 and effective from February 27, 2023 tightened the rule after studies showed plans being adopted or changed shortly before news. Directors and officers must now wait for a cooling-off period before the first trade: the later of 90 days after adoption or two business days after the next quarterly or annual report, up to 120 days. Other persons wait 30 days. Directors and officers certify that they are unaware of material non-public information and act in good faith. Overlapping plans are restricted and a single-trade plan is allowed only once in any twelve months.
Why it matters when reading a filing
Since April 1, 2023, Form 4 has a checkbox for a transaction made under a 10b5-1 plan, together with the date the plan was adopted. A sale under a plan was decided months earlier, so it says little about the insider’s view of the stock on the day it happened. A purchase under a plan is rare and equally scheduled.
InsiderTell reads the checkbox and subtracts points: 15 from a buy and 20 from a sell. Scheduled selling is the norm for executives paid in stock, which is also why the warning score for sells treats it as the baseline rather than a signal.
Questions
Is a sale under a 10b5-1 plan a bad sign?
Usually not. The decision to sell was made when the plan was adopted, under the rule’s cooling-off period, so the trade says little about the insider’s current view. Scheduled selling is routine for executives paid largely in stock. A sale outside a plan, large and by a senior officer, is the kind the warning score weighs.
How can I tell whether a Form 4 trade was under a plan?
Form 4 has had a checkbox for it since April 2023, with the adoption date of the plan. InsiderTell shows it on every signal and lists it as a score component.
What is the cooling-off period?
For directors and officers, the later of 90 days after the plan is adopted or two business days after the company’s next quarterly or annual report, capped at 120 days. For other persons, 30 days. Trading under the plan may not start before it ends.