Selling company stock when you're an insider is more complicated than placing a trade. Between blackout windows, material nonpublic information restrictions, and the optics of large sales, these restrictions can cause executives to delay diversification longer than they otherwise would. This is where a 10b5-1 plan becomes useful.
A 10b5-1 plan is a pre-arranged agreement between you and your broker that defines when and how shares will be sold — on a set schedule, at target prices, or some combination. Once the plan is in place, trades execute according to the preset instructions regardless of what you know or what the market is doing. The plan provides an affirmative legal defense against insider trading claims, which is the primary reason it exists.
The practical benefit is just as important: it takes you out of the decision. No second-guessing earnings timing, no waiting for a better price, no letting a concentrated position grow larger while you deliberate.
The SEC tightened these plans significantly in 2023. Officers and directors now face a mandatory 90-day cooling-off period before the first trade executes — meaning you can't adopt a plan and start selling the next week. Single-trade plans are limited to one per twelve-month period, and overlapping plans are largely restricted. You're also required to certify that you're not aware of any insider information and that the plan is being adopted in good faith — a standard the SEC now applies not just at adoption, but throughout the life of the plan.
Most plans run six to eighteen months and can be structured around specific goals — funding a liquidity need, systematically reducing a concentrated position, or exercising options before expiration. With the 90-day cooling-off period, the earlier you put a plan in place, the more flexibility you have when it matters.
For educational purposes only. Not tax, legal, or investment advice.