10b5-1 Plans: How Executives Sell Stock Without Insider-Trading Risk

If you work at a public company and hold a significant amount of equity, you have probably heard the phrase "trading window." What fewer people understand is that a trading window is not a legal safe harbor. It is a compliance calendar. The actual protection comes from somewhere else.

What a 10b5-1 Plan Is and Why It Exists

Rule 10b5-1 is the SEC provision that defines insider trading liability. Trading "on the basis of" material nonpublic information (MNPI) is what triggers the rule. For years, executives struggled to sell their own company's stock without legal exposure, because almost by definition a senior employee knows things the market does not.

The safe harbor in Rule 10b5-1 solves that problem by separating the decision from the execution. You establish a written plan, in advance, at a time when you do not possess MNPI. That plan specifies the amount, price, and timing of future sales. Once the plan is in place and the cooling-off period has passed, sales happen automatically. You are not making a trading decision in the moment, so you are not trading on inside information. That is the logic, and it is legally meaningful.

The safe harbor protects individuals from civil and criminal liability under Rule 10b-5, provided the plan meets the SEC's formal requirements. A compliant plan is not just good practice. For a VP, director, or named executive officer, it is often the only responsible way to diversify.

The 2023 Rule Update Changed the Math

The SEC tightened the 10b5-1 rules in February 2023, and many executives are still operating on outdated assumptions.

The most important change: officers and directors must now observe a cooling-off period of the later of 90 days after plan adoption, or the date of the first filing of a quarterly or annual report after adoption, with a cap of 120 days. Before 2023, some executives adopted a plan and began selling within weeks, which the SEC viewed as abuse.

A few other changes worth knowing:

Single-trade plans are now limited to one per 12-month period per person.
Plans must include a representation that the executive is not aware of MNPI at the time of adoption, and that the plan is being entered in good faith.
Multiple overlapping plans are now prohibited in most circumstances.

The spirit of all of this is the same: the plan must represent a genuine advance commitment, not a mechanism to time trades opportunistically while preserving a legal fig leaf. If that is what a plan is being used for, it will not survive scrutiny.

Who Actually Needs One (It Is Probably More People Than You Think)

In my work with high-earning professionals at public companies, I find that most people who need a 10b5-1 plan do not think of themselves as "insiders." They are not on the board. They have never been in an earnings call. But if you are a VP of Engineering, a senior finance leader, or a product executive who routinely sees revenue data, customer pipeline numbers, or deal flow before the public does, you are almost certainly in possession of MNPI at some point in any given quarter.

Trading windows help, but they are imprecise. A window that opens 48 hours after an earnings release does not erase the fact that you knew what that report contained before anyone else. A 10b5-1 plan puts the decision upstream of all of that.

For executives with RSUs vesting on a rolling schedule, or who hold ISOs and NSOs they are looking to exercise and sell, a plan is usually the cleanest way to manage the position systematically. The broader tax and compensation context for those decisions lives in our parent page on equity compensation. The mechanics of how you sell the shares, and how you stay legally protected doing it, is what we are focused on here.

When a Plan Makes Sense Versus Trading Windows Alone

A trading window approach works reasonably well for infrequent, smaller transactions, particularly if your access to MNPI is limited or episodic. If you are a mid-level employee with a modest RSU grant and no regular access to sensitive financial data, a 10b5-1 plan may be unnecessary overhead.

A plan becomes essential in three situations. First, if you are a named executive officer, director, or otherwise subject to Section 16 reporting requirements. Second, if you need to sell a concentrated position in company stock and want to spread those sales across multiple quarters without navigating window availability each time. Third, if your role gives you ongoing access to MNPI such that clean trading windows are rare or short.

I had a client, a VP at a mid-cap software company, who had been sitting on a concentrated position for three years because she could never find a window where she felt confident she was clean. That is not a legal strategy. That is avoidance, and it was creating real financial risk because her equity represented more than 60 percent of her net worth. A properly structured plan gave her a defined schedule, legal protection, and a path to diversify.

How This Connects to Equity Compensation

The sell decision is only one piece of the equity puzzle. Taxes, timing, and position sizing all compound in this space in ways that can be expensive to undo. This page focuses on the legal infrastructure for selling. The Soil layer of a well-built plan handles the tax architecture around those sales, including whether proceeds land in taxable accounts, Roth accounts, or elsewhere. For the full picture on how RSUs, ISOs, and NSOs interact with your plan, the equity compensation guide is the right starting point.

Frequently Asked Questions

Does a 10b5-1 plan have to be approved by my company's legal team?

Most public company compliance policies require pre-clearance of a 10b5-1 plan before it is established. Your company's General Counsel or Chief Compliance Officer typically reviews the plan to confirm it meets SEC requirements and aligns with internal policy. Never set one up without that step.

Can I modify or cancel a plan after it is set up?

Modifications are treated carefully under the 2023 rules. Certain changes effectively terminate the existing plan and trigger a new cooling-off period, as if you were adopting a fresh plan. Canceling is generally permitted, but frequent cancellation and re-adoption is a pattern the SEC has flagged as potentially manipulative.

How does the plan actually execute? Do I have to do anything?

Once adopted and the cooling-off period has passed, the plan runs automatically through your broker. You do not touch it. The broker executes trades on the schedule you specified. You receive confirmations and proceeds like any other trade, with no active decision required on your part.

Do I still have Section 16 reporting obligations?

Yes. A 10b5-1 plan does not eliminate Form 4 reporting requirements for Section 16 insiders. Trades that execute under the plan still appear on Form 4 within two business days. The plan protects you from insider trading liability. It does not change your disclosure obligations.

Can I have both a 10b5-1 plan and trade through open windows?

You can still trade during open windows for transactions outside the plan, but the combination creates compliance complexity. Any window trade will be scrutinized against your plan activity. Most compliance officers advise executives with active plans to channel all selling through the plan to keep the record clean.

What brokerage sets these up?

Major brokerages that manage equity compensation, including Fidelity, Morgan Stanley, and Schwab, all have 10b5-1 plan infrastructure. The plan is a legal document, not just a brokerage instruction, so you will typically need legal counsel or a financial advisor coordinating with your compliance team to draft it properly.

What to Do Next

Check your title and role against your company's insider trading policy. If you are a VP or above, or if you regularly see financial data before public release, confirm whether a plan is required or recommended.
Talk to your company's General Counsel or compliance team about their 10b5-1 pre-clearance process before you approach a broker.
Work with a financial advisor to map the tax implications of planned sales before the plan is adopted, because the timing and structure of sales affects your tax year significantly.
If you are already diversifying through trading windows and have not thought carefully about MNPI exposure, schedule a conversation with a fiduciary advisor who works with equity compensation regularly.

The information provided is for educational purposes only and does not constitute investment, legal, or tax advice. Tax law changes frequently — verify current rules before acting. Consult with qualified professionals for guidance specific to your situation.