SEC Form 4 is the ownership-change filing used by officers, directors, and 10% beneficial owners of U.S. public companies. When one of those reporting owners buys, sells, receives, or disposes of issuer securities, the Form 4 is the filing that tells the market what happened.
Who files Form 4?
Form 4 is filed by company insiders: executive officers, directors, and beneficial owners of more than 10% of a registered class of equity securities. A filing can include one reporting owner or multiple associated owners.
When is Form 4 due?
Most Form 4 transactions must be reported within two business days. The filing time is important because delayed reports can change how fresh or actionable the disclosure feels to readers.
What information is inside a Form 4?
- Issuer name and ticker
- Reporting owner name and CIK
- Relationship to the issuer
- Transaction date
- Transaction code such as P, S, A, M, or F
- Shares, price, and reported value when available
- Direct or indirect ownership
- Post-transaction holdings
- Footnotes, including possible 10b5-1 plan language
Why investors track Form 4 filings
Form 4 filings are one of the few structured ways to observe legal insider activity. Open-market purchases can be especially interesting because insiders are voluntarily using capital to buy shares, while sales require more context because they can be planned, tax-related, or diversification-driven.
How The Insiders Post uses Form 4
The Insiders Post normalizes Form 4 rows into searchable company pages, insider profiles, signals, rankings, and recent transaction feeds. We describe filing facts only; we do not predict returns or provide investment advice.