Form 4/A Filings

What Is SEC Form 4/A?

SEC Form 4/A is an amendment to Form 4, filed under Section 16 of the Securities Exchange Act of 1934. It is used by company insiders to correct, clarify, or update information disclosed in an earlier Form 4 filing related to changes in beneficial ownership.

This amended filing may be required when an insider identifies an error, omission, or misstatement in the original Form 4. Common reasons include incorrect transaction dates, inaccurate share counts, misclassified transaction codes, or missing footnotes.

Form 4/A helps ensure that insider transaction records remain accurate and transparent for investors and regulators.

Key elements typically found in SEC Form 4/A include:

• Corrected insider name, title, or reporting relationship
• Revised transaction details or ownership amounts
• Updated transaction dates or transaction codes
• Clarifications to direct or indirect ownership reporting
• Corrected or expanded explanatory footnotes

SEC Form 4/A Filing Deadlines

SEC Form 4/A has no fixed statutory deadline. Instead, it must be filed promptly after an insider becomes aware of an error or omission in a previously filed Form 4.

Timely amendments help reduce regulatory risk and preserve investor confidence.

Key Things to Know About Form 4/A Filing Rules

• Amendment Only: Form 4/A can only be filed to amend a previously submitted Form 4 and cannot be used as an original filing.
• Filed by Insiders: The form is submitted by directors, officers, or 10% beneficial owners, not by the issuing company.
• Does Not Report New Transactions: Form 4/A corrects prior disclosures but does not report new insider transactions, which require a new Form 4.
• Prompt Correction Expected: Although no strict deadline applies, the SEC expects amendments to be filed without unnecessary delay.
• Part of Section 16 Reporting Framework: Form 4/A works alongside Form 3, Form 3/A, Form 4, and Form 5 to ensure complete insider disclosure.

To monitor insider transaction corrections and amendments, our platform helps you track filings such as Form 4, Form 4/A, and other insider ownership reports, giving you clear visibility into updated insider disclosures.