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  1. Home
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  3. Trading Terms

Insider Trading Window

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

An insider trading window is a period when company insiders are permitted to trade company stock, typically after earnings announcements and outside of blackout periods when they don't possess material non-public information.

The Trader's Take

The Signal

Insider trading windows create predictable patterns in trading activity. Increased trading activity at the start of trading windows can signal insider sentiment, especially if multiple insiders trade.

The Noise

Routine trading during open windows is expected and may not indicate strong sentiment—it could be portfolio management or diversification.

Actionable Insights

  • 1
    Monitor for increased trading activity at the start of trading windows.
  • 2
    Trades at the beginning of windows may be more significant than routine window trades.
  • 3
    Compare trading patterns across different window periods to identify trends.
  • 4
    Understand that window periods vary by company and may not be publicly disclosed.

Regulatory Context & Context

Insider trading windows are established by company policies to allow legal trading while preventing violations. They typically open after earnings announcements and material disclosures, when insiders are less likely to possess material non-public information.

Insider Trading Window vs Blackout Period

Insider Trading Window

An insider trading window is a period when company insiders are permitted to trade company stock, typically after earnings announcements and outside of blackout periods when they don't possess material non-public information.

Blackout Period

A blackout period is a restricted trading window when company insiders are prohibited from trading company stock, typically before earnings announcements or other material events, to prevent trading on material non-public information.

Common Misconceptions

Trading windows aren't required by SEC regulation—they're company policies.

10b5-1 plan trades can occur outside trading windows since they're pre-planned.

Window periods vary by company and may not be publicly disclosed.

Frequently Asked Questions

When do insider trading windows typically open?

Trading windows typically open after earnings announcements and material disclosures, when insiders are less likely to possess material non-public information.

Can insiders trade outside trading windows?

Generally, company policies restrict trading to window periods, though 10b5-1 plan trades may be allowed outside windows since they're pre-planned.

On This Page

Trader's TakeRegulatory ContextCommon MisconceptionsF.A.Q.

Related Intelligence

Regulatory
Blackout Period
Regulatory
Rule 10b5-1
Regulatory
Material Non-Public Information

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