Form 4 Filing Deadline: The Two-Business-Day Rule

Corporate insiders must report most transactions in their company's stock to the SEC on Form 4 before the end of the second business day after the day the transaction was executed. The rule comes from Section 16(a) of the Securities Exchange Act of 1934, tightened dramatically by the Sarbanes-Oxley Act of 2002 - before 2002, insiders had until the 10th day of the following month, a lag of up to six weeks.

When does the clock start?

The deadline runs from the trade date (the date of execution), not the settlement date. If a CEO buys shares on a Monday, the Form 4 is due by end of day Wednesday. Weekends and federal holidays do not count as business days:

• Trade on Monday → due Wednesday
• Trade on Thursday → due Monday
• Trade on Friday → due Tuesday

For trades executed under a Rule 10b5-1 plan where the insider does not select the execution date (and for certain employee-benefit-plan transactions), the two-day clock starts when the insider is notified of the execution, but no later than the third business day after the trade.

What transactions can wait for Form 5?

A small set of transactions may be deferred to the annual Form 5, due within 45 days of the company's fiscal year end - mainly small acquisitions and transactions exempt from Section 16(b). Since a 2023 amendment, bona-fide gifts of securities must be reported on Form 4 within the standard two business days, closing a long-standing loophole.

What happens if an insider files late?

There is no automatic fine, but late filings must be disclosed in the company's annual proxy statement under "Delinquent Section 16(a) Reports", and the SEC has periodically run enforcement sweeps - in 2023-2024 it charged dozens of insiders and companies with civil penalties for repeated late filings. For traders, a late Form 4 also matters practically: the information edge decays fast, so a purchase reported weeks late carries far less signal than one reported the same day. InsiderAlpha timestamps every filing against its transaction date so you can see exactly how fresh the disclosure is on the daily plan.

Key dates at a glance

• Form 3 - within 10 days of becoming an insider.
• Form 4 - within 2 business days of the transaction.
• Form 5 - within 45 days of fiscal year end.
• Form 144 - filed on or before the sale of restricted stock (see Form 4 vs Form 144).

Track filings the moment they hit EDGAR on the live Form 4 feed.

This article is informational and is not investment advice.