Form 144: The Early Warning Before an Insider Sale
What Form 144 is, who must file it, how it differs from Form 4, and why it can show a planned insider sale before the sale is reported.
Most insider-tracking starts with Form 4, filed after a trade. Form 144 can appear before one.
What it is
Form 144 is a notice of a proposed sale of securities under Rule 144. It is filed by affiliates (insiders and large holders) who plan to sell restricted or control securities, and it is filed at the time they place the sell order with their broker.
When is it required?
It applies when the sale exceeds 5,000 shares or $50,000 in any three-month period. Since 2023 the form must be filed electronically through EDGAR.
What it contains
- The seller and their relationship to the company
- The security and the number of shares to be sold
- Aggregate market value and the approximate sale date
- How the shares were acquired (for example through awards or option exercises)
- A representation about not holding undisclosed material information
- Sales in the past three months
Form 144 vs. Form 4
| Form 144 | Form 4 | |
|---|---|---|
| When | When the sale order is placed | Within 2 business days after the trade |
| Says | A sale is proposed | A sale happened |
| Details | Planned size, approximate date | Actual price, shares, holdings after |
A Form 144 is not a promise. The order may be partly filled, filled at a different price or cancelled.
How to use it
- It shows sales earlier, by days in some cases.
- Size matters. Compare with holdings and past sales.
- Check for a plan. A Form 144 under a 10b5-1 plan states the plan adoption date. Planned sales carry little new information.
- Treat it like any sale. Insider sales are noisy.
Where to find it
On EDGAR, search the company and filter for Form 144, or browse the latest filings. See the EDGAR guide.
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