Block Period in Securities Law: Rule 10b5-1 Plans and Penalties

A blackout period in securities law is a stretch of time when a public company forbids its directors, officers, and other insiders from buying or selling its stock, because those individuals are likely to hold material non-public information the market does not. Most companies open the window shortly after each earnings release and close it partway through the last month of the following quarter, though the exact dates are set by company policy rather than a federal rulebook. Trading through a blackout does not itself violate a specific statute, but it almost always violates the anti-fraud rules the blackout was designed to keep insiders away from, and the penalties for that underlying violation are steep.

Where the Rule Comes From

No federal statute directly commands companies to impose blackouts. The obligation is indirect. The Securities Exchange Act of 1934 gave the SEC authority over deceptive trading practices,¹ and SEC Rule 10b-5 makes it unlawful to use any deceptive device in connection with buying or selling a security.² When an insider trades while holding material non-public information, that trade violates Rule 10b-5.

Regulation Fair Disclosure adds another layer. If a public company intentionally shares material non-public information with select outsiders, it must simultaneously release that information to the public; unintentional leaks must be disclosed promptly.³ A blackout policy is a practical tool to keep insiders from trading before information reaches the market, which in turn helps companies avoid Reg FD problems.

Who Is Covered and When the Window Closes

Blackouts do not apply to every employee. They target “covered persons,” typically all directors, all executive officers, and employees in finance, accounting, legal, and investor relations. Most policies also reach household family members and entities the insider controls, such as trusts and personal investment vehicles. If a spouse trades on information the insider brought home, the law treats that as the insider’s violation.

The routine trigger is quarterly and annual earnings. Companies generally close the window partway through the last month of the fiscal quarter and keep it closed for one to two full trading days after the earnings release, giving the market time to absorb the news. Exact start and reopening dates are set by each company’s insider trading policy, not by an SEC rule.

Event-driven blackouts are less predictable. Pending mergers, major product launches, significant litigation developments, and large debt or equity offerings can all prompt one. General counsel may simply notify affected people that they cannot trade, sometimes without explaining why, because the reason itself may be inside information.⁴

What the Restriction Actually Covers

During an active blackout, covered persons cannot buy, sell, or otherwise transfer the company’s common stock. The prohibition extends to derivatives whose value tracks the stock, including options, warrants, and convertible debt. Short sales are off limits.

Gifts are a common trap. No cash changes hands, but a gift can still be treated as a disposition under insider trading rules, so most company policies either ban gifts outright during blackouts or require pre-clearance from a compliance officer.

Directors, officers, and shareholders holding more than 10 percent of any class of stock are subject to Section 16 of the Exchange Act and must report every transaction in company securities on SEC Form 4 within two business days.⁵ The filing is public, so a violation becomes visible to regulators and investors almost immediately.

Rule 10b5-1 Plans: Trading Through the Window Legally

The one significant way an insider can trade during a blackout is under a valid Rule 10b5-1 plan. This is a written trading schedule the insider adopts while not in possession of material non-public information. Because the instructions are locked in before any sensitive information exists, the insider is not exercising discretion when trades later execute.⁶

The SEC tightened these plans effective February 2023. Directors and officers now face a cooling-off period before the first trade under a new or modified plan can execute. That period is the later of 90 days after adopting the plan or two business days after the company files the quarterly or annual report covering the fiscal quarter of adoption. For other insiders, the cooling-off period is 30 days.⁶

Additional guardrails apply. Directors and officers must certify in writing that they are not aware of material non-public information when adopting or modifying a plan. No one other than the company itself can maintain multiple overlapping plans. A single-trade plan, designed to execute just one transaction, can be used only once in any 12-month period. And the plan itself cannot be created, modified, or canceled during a blackout or while the insider holds inside information. Failing any of these conditions strips the safe harbor.

Stock Options and Equity Awards

Options create real trouble when a blackout overlaps an expiration date. Whether an insider can exercise depends on how the transaction settles.

An exercise and hold, where the insider pays cash to exercise and keeps the resulting shares, generally does not involve a market sale. Many company policies exempt this from the blackout because nothing hits the open market.⁷ Routine vesting of restricted stock units and the surrender of shares to cover tax withholding fall under the same logic, as long as those transactions stay off the public market.

A cashless exercise is different. The broker sells shares on the market to fund the strike price, and that market sale is exactly the transaction a blackout is meant to prevent. Cashless exercises are typically prohibited during a restricted period.⁷ If an expiring option can only be exercised cashlessly and the expiration falls inside a blackout, the option may simply lapse. Some equity plans extend the expiration date in that situation, but that is a plan-level provision, not a legal right. Read the plan documents well before expiration.

Hardship Exemptions

Some insider trading policies build a narrow escape valve for genuine financial emergencies. Under these provisions, an insider who is not a Section 16 filer can request permission to trade outside the normal window. The request must be in writing, describe the proposed transaction and the circumstances, and include a certification that the insider does not possess material non-public information.⁸

Two limits apply. These exemptions are entirely discretionary; the compliance officer has no obligation to approve them. And they are almost never available during an event-driven special blackout. A hardship request might unlock a routine closed window if the insider can demonstrate they hold no inside information. It will not override a blackout imposed because of a pending deal.

Retirement Plan Blackouts Are a Different Animal

The phrase “blackout period” also refers to a separate restriction inside company-sponsored 401(k) and other defined contribution plans. These blackouts are governed by the Employee Retirement Income Security Act, not securities law, and their purpose is administrative. They happen when a company switches recordkeepers, restructures its investment menu, or migrates plan administration software.

During this window, participants temporarily cannot redirect investments, take plan loans, or request distributions. Any suspension lasting more than three consecutive business days qualifies as a blackout under ERISA and triggers notice requirements.⁹

The plan administrator must send written notice to participants at least 30 but no more than 60 days before the blackout begins, explaining the reason, the rights being suspended, the expected start and end dates, and how to reach the plan administrator. If the dates change, an updated notice must go out as soon as reasonably possible.⁹ ERISA sets no hard maximum length, but regulators expect the suspension to be no longer than the administrative change requires.

Sarbanes-Oxley Section 306: The Bridge Between the Two

Sarbanes-Oxley connects the two types of blackout directly. Under Section 306(a), directors and executive officers of a public company are barred from buying, selling, or transferring company stock acquired through their service during any pension plan blackout that blocks at least 50 percent of plan participants from transacting in company stock for more than three consecutive business days.¹⁰ If rank-and-file employees cannot move their retirement money, executives cannot trade either. When such a blackout arises, the company must file a Form 8-K disclosing it, updating that filing if dates change.¹¹

Any profit a director or officer realizes from a trade that violates this rule can be recovered by the company. If the company does not sue within 60 days of a shareholder’s written demand, any shareholder can bring the action on the company’s behalf. Suits must be filed within two years of the profit, and the executive’s intent does not matter — the profit is recoverable whether the trade was deliberate or inadvertent.¹⁰

Penalties

Consequences for trading through a blackout come from several directions and stack.

SEC Civil Enforcement

The SEC can seek disgorgement of profits gained or losses avoided. A federal court can add a penalty of up to three times that amount. A person who controlled the violator, such as a supervisor, faces a separate penalty of up to $1,000,000 or three times the controlled person’s illegal gain, whichever is greater.¹²

Criminal Prosecution

The Department of Justice can bring criminal charges for willful violations. Individuals face up to $5 million in fines and up to 20 years in prison. Corporate defendants face fines up to $25 million.¹³ Courts can also bar convicted individuals from serving as officers or directors of public companies.

ERISA Notice Penalties

Failing to give the required advance notice for a retirement plan blackout carries its own exposure. The Department of Labor can impose a civil penalty of up to $169 per day for each participant or beneficiary who did not receive timely notice, adjusted upward from the $100 statutory figure for inflation.¹⁴¹⁵ Because each missed participant counts as a separate violation, a plan with a few thousand participants can generate six-figure liability in weeks.

Private Suits and Internal Consequences

Shareholders can bring private actions against insiders who traded during a blackout, and under the Sarbanes-Oxley profit-recovery provision above, they can sue on the company’s behalf if the company declines. Internally, a violation frequently means termination, forfeiture of unvested equity, and clawback of incentive compensation under the company’s recoupment policy. Since October 2023, the major U.S. stock exchanges have required listed companies to maintain a clawback policy for excess incentive compensation paid to executives after a financial restatement, and many companies have voluntarily extended those policies to reach misconduct even without one.

1
Cornell Law School. Securities Exchange Act of 1934
2
eCFR. 17 CFR 240.10b-5 – Employment of Manipulative and Deceptive Devices
3
eCFR. 17 CFR 243.100 – General Rule Regarding Selective Disclosure
4
SEC.gov. Insider Trading Policy
5
U.S. Securities and Exchange Commission. Insider Transactions and Forms 3, 4, and 5
6
U.S. Securities and Exchange Commission. Rule 10b5-1 – Insider Trading Arrangements and Related Disclosure
7
SEC.gov. DIH Holding US, Inc. Insider Trading Compliance Policy
8
SEC.gov. Insider Trading Policy
9
eCFR. 29 CFR 2520.101-3 – Notice of Blackout Periods Under Individual Account Plans
10
Office of the Law Revision Counsel. 15 USC 7244 – Insider Trades During Pension Fund Blackout Periods
11
eCFR. 17 CFR 245.104 – Notice
12
Office of the Law Revision Counsel. 15 USC 78u-1 – Civil Penalties for Insider Trading
13
Office of the Law Revision Counsel. 15 USC 78ff – Penalties
14
U.S. Department of Labor. Enforcement Manual – Civil Penalties
15
U.S. Department of Labor. Fact Sheet – Adjusting ERISA Civil Monetary Penalties for Inflation