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Operations

Blackout windows

How Market Fortress enforces blackout periods for officer and director trading.

Updated 2026-04-30blackoutstradingcompliance

Blackout windows prevent officer and director trading during periods of material non-public information.

When they apply

  • Quarter-end through 2 business days after earnings release.
  • 30 days before any 10-K, 10-Q, or material 8-K.
  • During any internal investigation or material development.
  • Custom periods you define.

What the system does

When an officer attempts to log a Form 4 transaction during a blackout, the system blocks with a hard error. The error includes the blackout reason and the unlock date.

Screenshot
blackout block screen on Form 4 wizard

Pre-clearance

For 10b5-1 plan trades, pre-clearance is automatic if the trade is within an active 10b5-1 plan and the cooling-off period has elapsed.

Notifications

Officers receive an email 7 days before each blackout begins and 1 day before it ends. The notification includes the dates and the affected accounts.