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  1. Home
  2. Glossary
  3. Regulatory

Cooling-Off Period

M
Marcus Thorne
Last Updated: January 5, 2026
Plain English Definition

A cooling-off period is a mandatory waiting period between adopting or modifying a 10b5-1 trading plan and executing the first trade under that plan. The SEC requires 90-day cooling-off periods for officers and directors.

The Trader's Take

The Signal

Cooling-off periods prevent insiders from using 10b5-1 plans to trade on material non-public information. Understanding cooling-off periods helps identify when 10b5-1 trades are truly pre-planned versus potentially opportunistic.

The Noise

Cooling-off periods are regulatory requirements that don't create trading signals themselves.

Actionable Insights

  • 1
    Check the adoption date of 10b5-1 plans to ensure cooling-off periods were observed.
  • 2
    Plans adopted during low stock prices with proper cooling-off periods may be more meaningful.
  • 3
    Frequent plan modifications that reset cooling-off periods can raise red flags.
  • 4
    The 90-day cooling-off period helps ensure trades are truly pre-planned.

Regulatory Context & Context

The SEC modified Rule 10b5-1 in 2023 to require mandatory cooling-off periods: 90 days for officers and directors, and 30 days for companies. This prevents insiders from adopting plans when they possess material non-public information.

Common Misconceptions

Cooling-off periods apply to plan adoption and modifications, not just initial adoption.

The 90-day period is for officers and directors—companies have a 30-day period.

Cooling-off periods reset when plans are modified, preventing abuse.

Frequently Asked Questions

How long is the cooling-off period?

The SEC requires a 90-day cooling-off period for officers and directors adopting or modifying 10b5-1 trading plans.

Why does the SEC require cooling-off periods?

Cooling-off periods prevent insiders from adopting 10b5-1 plans when they possess material non-public information, ensuring trades are truly pre-planned.

On This Page

Trader's TakeRegulatory ContextCommon MisconceptionsF.A.Q.

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Rule 10b5-1
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