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  1. Home
  2. Glossary
  3. SEC Filings

Form 144

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

SEC Form 144 is a notice of proposed sale of restricted securities or securities held by affiliates. It must be filed when an insider intends to sell restricted stock or control securities, providing advance notice to the market.

The Trader's Take

The Signal

A Form 144 filing signals an upcoming sale, which can create downward pressure on stock price. However, if the sale doesn't materialize or is smaller than expected, it can be bullish.

The Noise

Many Form 144 filings are routine sales of restricted stock from compensation plans and don't indicate negative sentiment.

Actionable Insights

  • 1
    Monitor Form 144 filings to anticipate potential selling pressure.
  • 2
    Compare the proposed sale amount to the insider's total holdings—small sales are less significant.
  • 3
    Watch for Form 144 filings that are never executed—this can signal the insider changed their mind.
  • 4
    Large Form 144 filings from multiple insiders simultaneously can indicate coordinated selling.

Regulatory Context & Context

Form 144 is required under Rule 144 of the Securities Act of 1933, which governs the resale of restricted and control securities. The form must be filed before or concurrently with the sale, and sales must comply with volume limitations and holding period requirements.
Timing / DeadlineReporting Requirement
Before or ConcurrentMust be filed before or at the time of placing the sell order.

Form 144 vs Form 4

Form 144

SEC Form 144 is a notice of proposed sale of restricted securities or securities held by affiliates. It must be filed when an insider intends to sell restricted stock or control securities, providing advance notice to the market.

Form 4

An SEC Form 4 is a mandatory filing that reports changes in ownership of company stock by "insiders"—officers, directors, and any shareholder owning more than 10% of the company. It must be filed within two business days of the transaction.

Common Misconceptions

Form 144 doesn't guarantee the sale will happen—it's a notice of intent.

Not all insider sales require Form 144—only restricted securities and control securities.

Form 144 is different from Form 4, which reports completed transactions.

Frequently Asked Questions

What is the difference between Form 144 and Form 4?

Form 144 is a notice of proposed sale, while Form 4 reports completed transactions. Form 144 is filed before selling restricted securities, while Form 4 is filed after any insider transaction.

Does Form 144 mean the insider will definitely sell?

No, Form 144 is a notice of intent. The sale may not occur, or may occur in smaller amounts than indicated.

On This Page

Trader's TakeRegulatory ContextCommon MisconceptionsF.A.Q.

Related Intelligence

SEC Filings
Form 4
Trading Terms
Restricted Stock Units
Trading Terms
Derivative Securities

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