SEC Form 144 Explained: What It Is and How It Differs From Form 4

Form 144 is a notice filed with the SEC by someone who plans to sell restricted or control securities of a public company. It's a notice of proposed sale, which makes it different from the Form 4 that reports a sale after it happens.

Why Form 144 Exists: Rule 144

Under securities law, shares sold to the public normally need to be registered. Rule 144 provides a safe harbor that lets certain holders resell shares without registering them, if they meet specific conditions. Form 144 is the filing that accompanies those sales.

It applies to two kinds of holders:

• Restricted securities. Shares acquired in unregistered transactions, such as a private placement or stock received as compensation before a company went public.
• Control securities. Shares held by affiliates: generally directors, executive officers, and large shareholders who can influence the company. Even shares bought on the open market by an affiliate fall under the rule.

When Form 144 Must Be Filed

A Form 144 is generally required when an affiliate's sales under Rule 144 in any three-month period exceed 5,000 shares or $50,000 in aggregate sales price. It must be filed at the time the sell order is placed with the broker, not after the sale completes.

Since April 2023, Form 144 has been required to be filed electronically on EDGAR, so it now appears as a searchable public filing.

The Rule 144 Conditions in Brief

To use the safe harbor, sellers must satisfy conditions that depend on their status. The main ones:

• Holding period. Restricted shares of a company that has been filing reports with the SEC generally must be held for six months before resale; for a non-reporting company, one year. (Shares affiliates buy on the open market aren't restricted but are still subject to the other conditions.)
• Current public information. The company must have made adequate public disclosure available.
• Volume limits for affiliates. In any three-month period, an affiliate can sell no more than the greater of 1% of the company's outstanding shares or the average weekly trading volume over the prior four weeks.
• Manner of sale. Sales are generally executed through ordinary broker transactions without special solicitation.

The exact conditions and exceptions are detailed; the SEC's Rule 144 text is the authoritative source.

Form 144 vs. Form 4

A Form 144 can be filed and the sale not completed (for instance, if the limit price isn't reached, or the order is canceled). Conversely, many insider sales appear on Form 4 without a visible Form 144 if they fall below the thresholds. See SEC Form 4 explained for the report of completed trades.

Using Form 144 as a Signal, Carefully

Because it's filed before the sale, Form 144 can offer an early look at planned insider selling. But reading too much into it is a common mistake:

• Insiders sell for many reasons, including taxes, diversification, and personal expenses. See insider buying vs. insider selling.
• Many are pre-scheduled. Sales under a 10b5-1 plan are set in advance and say little about current views.
• It shows intent, not execution, and the amount may not be fully sold.
• Tax-driven sales after share vesting are common.

For the broader picture of how to read insider activity, see how to read an insider trading tracker and what insider trading is and how to track it.

This article is for educational purposes only and is not investment or legal advice. Check current SEC rules for specifics.