10b5-1 plans for tech employees and Section 16 officers

If you work at a public company, you routinely know things the market does not: the quarter's numbers before they print, the deal in diligence, the product slipping a quarter. Securities law calls that material nonpublic information (MNPI), and trading while you have it is insider trading. Companies manage the risk with trading windows: a few open weeks after each earnings release, blackout the rest of the time. So the equity holder with the most concentrated, least diversified position in the building is also the one with the fewest days a year to do anything about it. Rule 10b5-1 is the escape hatch: commit to a sell schedule while you are clean of MNPI, and the trades execute later no matter what you learn in between.

A 10b5-1 plan is a commitment device. You give up the right to time your sales, and in exchange the sales happen, on schedule, even in a blackout, even when you know things.

What Rule 10b5-1 actually is

Rule 10b5-1 is a Securities and Exchange Commission (SEC) rule under the Securities Exchange Act, adopted in 2000 and substantially amended in December 2022 (effective February 27, 2023). It provides an affirmative defense to insider-trading liability: if you adopted a qualifying written plan while unaware of MNPI, trades executed under that plan are deemed not to have been made on the basis of whatever you knew at execution time. An affirmative defense is not immunity. The plan has to satisfy every condition of the rule, at adoption and in operation, or the defense is gone and you are back to defending the trades on their own facts.

Who needs one

Section 16 officers and directors. Section 16 of the Exchange Act covers officers, directors, and holders of more than 10 percent of a company's stock; it requires them to report their trades publicly (Form 4, within two business days) and lets the company claw back any profit from a purchase and sale inside a six-month window, the short-swing rule. For this group a 10b5-1 plan is close to standard practice. Every trade is public within two days, every trade invites the question “what did they know,” and the plan is the documented answer: the decision was made months earlier, on a schedule, in writing. The 2022 amendments also aim most of their machinery, the longer cooling-off period, the certification, the disclosure, at exactly this group.

Rank-and-file employees. If you are not an officer, the rule's formal burdens are lighter and the practical payoff is often just as large: a plan trades through blackout windows. Without one, your selling is compressed into a few open weeks a year, which is how equity holders end up with five years of vested shares they kept meaning to sell. With one, vesting and selling stop competing for the same four open windows. Many companies require preclearance or impose their own plan guidelines on employees too, so the company's stock plan administrator is the first call either way.

How a plan works mechanically

You adopt the plan with a broker, in writing, during an open trading window, while unaware of MNPI. From there the rule's conditions take over:

• The schedule is fixed at adoption. The plan must specify the amount of securities, the price, and the dates of sales, or a written formula or algorithm that determines them. “Sell 2,000 shares on the first trading day of each month if the price is above $40” qualifies. “Sell when it feels right” does not.
• No later influence. The plan cannot permit you to exercise any subsequent influence over how, when, or whether the trades happen. The broker executes; you watch.
• A cooling-off period before the first trade. For officers and directors: the later of 90 days after adoption, or two business days after the company files the Form 10-Q or 10-K covering the fiscal quarter in which the plan was adopted, capped at 120 days. For everyone else (other than the company itself): 30 days.
• Certification, for officers and directors. The plan must include a written representation that you are not aware of MNPI and are adopting the plan in good faith and not as part of a scheme to evade the rule.
• No overlapping plans. You generally cannot maintain a second plan covering open-market trades while the first is outstanding. The exceptions are narrow: plans split across multiple brokers that together act as one, a later-commencing plan whose first trade waits until the earlier plan completes, and sell-to-cover instructions that only sell enough shares to satisfy tax withholding when an award vests.
• One single-trade plan per 12 months. A plan designed to sell everything in one transaction is allowed, but only one such plan in any 12-month period.
• Good faith, both directions. The plan must be entered into in good faith, and since 2022 you must also have acted in good faith with respect to it for as long as it runs. Pressuring the company to time a disclosure around your plan's trade dates is the canonical way to fail this one.

What changed in December 2022, and why

For its first two decades the rule had no cooling-off period, no plan limits, and no disclosure: an insider could adopt a plan and trade days later, run several plans at once and let the favorable one execute, or cancel a plan when the price moved. Each 2022 amendment closes one of those doors. The cooling-off period puts months between what you knew at adoption and the first trade. The certification puts the officer's own signature on the “unaware of MNPI” condition. The overlapping-plan ban and the single-trade limit stop plan portfolios and serial one-shot plans. The good-faith condition now covers the plan's whole life, not just its birth.

The amendments also made plans public machinery. Companies must disclose each quarter, in the 10-Q or 10-K, any adoption or termination of a trading plan by a director or officer, with the name, title, date, duration, and aggregate shares covered (price terms are excluded). And Forms 4 and 5 now carry a checkbox indicating whether a reported trade was made under a 10b5-1 plan, with the plan's adoption date. If you are an officer, your plan's existence, size, and schedule footprint are visible to anyone who reads the filings.

The schedule inside the plan is a math problem

Everything above is the legal wrapper. The content of the plan, the part the rule makes you fix in advance and then forbids you to touch, is a sell schedule: how many shares, from which lots, in which months and years. That is a computable question, and committing to it in writing is exactly the wrong moment to guess.

If the goal is a number, a down payment or tuition by a date, the Equity Funding Plan Calculator computes the schedule directly: give it your lots (shares, cost basis, acquisition dates), your after-tax target, and your deadline, and it returns the sale schedule that nets the target by the date with the most wealth left at the deadline. It picks which lots to sell and when, spreads gains across tax years and months, classifies each sale as short- or long-term on its actual sale date, itemizes federal, state, and net investment income tax per sale, and compares the result against selling everything in the target year. You can also set the shortfall risk you will accept, and it sizes how much to lock in now versus let ride. If the goal is unwinding concentration rather than funding a purchase, the concentration risk article covers how fast to sell down. Either way, the output is the thing a 10b5-1 plan wants as input: a dated, share-counted schedule you can hand to the broker.

Practical notes

The discipline is a feature. The same commitment that satisfies the SEC also defeats the usual reasons diversification never happens: waiting for a better price, anchoring on the all-time high, one more vest. Equity holders who would never place a sell order on a red day will let a plan do it for them.

Taxes do not change. A 10b5-1 sale is taxed exactly like any other sale of the same shares: gains are short- or long-term by holding period, and long-term capital gains (LTCG) treatment still requires holding more than one year. What the plan changes is that sale dates are chosen in advance, which cuts both ways. Place a lot's sale date after its one-year mark and you have locked in LTCG treatment by design; ignore the clocks and the plan will cheerfully realize short-term gains on schedule. Date selection inside the plan is where the tax planning happens.

Hedging is usually a separate door, often locked. If what you want is downside protection rather than sales, options structures like zero-cost collars exist, but most companies' insider trading policies restrict or prohibit hedging company stock, especially for officers. Check the policy before pricing the collar.

This article covers the planning math, not the drafting. The plan document, its company-specific guidelines, and the legal review belong to your stock plan administrator and counsel.

Where to go from here

Start with the Equity Funding Plan Calculator to compute the schedule your plan should contain, and read the funding a goal article for how the risk dial works. If the underlying problem is that one stock is most of your net worth, the concentration risk article sizes that exposure and the cost of fixing it.

The calculator handles one goal in isolation. OptionsAhoy plans the full picture jointly: every ISO, NSO, RSU vest, concentrated position, and hedge, across bullish, neutral, and bearish scenarios. The output is a year-by-year Plan optimized for total after-tax wealth, a schedule worth wrapping in a plan document. Free during beta.