When is a Form 4 late? The two-business-day deadline and what a late filing looks like

The rule

Section 16(a) of the Securities Exchange Act requires officers, directors and owners of more than 10% of a listed company to report a change in their holdings "before the end of the second business day following the day on which the subject transaction has been executed". Rule 16a-3 repeats it for Form 4. A trade on a Monday is due by the end of Wednesday; a trade on a Thursday is due by the end of Monday. The other forms have their own dates: a Form 3 within 10 days of becoming an insider, and a Form 5 generally within 45 days of the fiscal year end, as the SEC investor bulletin describes.

How EDGAR counts the day

A filing is dated by when EDGAR receives it. Under Regulation S-T Rule 13, a Form 3, 4 or 5, a Form 144 or a Schedule 13D or 13G submitted by direct transmission on or before 10 p.m. Eastern time is deemed filed on the same business day. That is later than the 5:30 p.m. cutoff for most filings. A Form 4 submitted at 9:45 p.m. on the due date is on time; one submitted at 10:15 p.m. is dated the next business day.

When the clock starts later

Rule 16a-3(g) has an exception for trades the insider does not time. For a transaction under a Rule 10b5-1 plan that satisfies the affirmative defense, and for a discretionary transaction run by a plan administrator, where the insider does not choose the date, the date on which the broker or administrator notifies the insider is treated as the execution date. That notification date cannot be later than the third business day after the trade. So a Form 4 can show a transaction date three business days before a filing and still be on time.

What a late filing looks like

Nothing on the form marks it. The form gives the transaction date, and EDGAR gives the filing date, so the test is a count of business days between them. Three patterns are common:

• A long gap with no explanation. A transaction dated weeks before the filing date.
• An amendment. A Form 4/A corrects an earlier filing, and the original date still governs whether the first filing was late.
• A catch-up filing. Several transactions from different months reported on one form.

A company must also say publicly when its insiders were late. Item 405 of Regulation S-K requires a registrant, under the caption "Delinquent Section 16(a) Reports", to identify each person who failed to file on time during the most recent fiscal year or earlier years, with the number of late reports and the number of transactions not reported on time. Item 405 is why a late Form 4 often shows up months later in a proxy statement.

What the SEC has done about it

On 25 September 2024 the SEC announced settled charges against 23 entities and individuals for failing to report holdings and transactions on time, and two public companies for contributing to filing failures by their officers and directors and failing to report the delinquencies. The press release puts the penalties at more than $3.8 million and says the reporting requirements apply irrespective of whether the trades were profitable and regardless of a person's reasons. That is one enforcement action from one date; it is not a rate of late filing.

What one quarter of OQRO's records shows

We compared the transaction date and the filing date of open-market purchases and sales in OQRO's database for transactions dated from 11 July to 9 October 2026, counted on 9 October 2026. Gaps are in weekdays; holidays are not removed.

The median gap is two weekdays. A gap of three weekdays is not proof of lateness: a Monday holiday, a plan notification date or a filing time after the 10 p.m. cutoff can each explain one. Anything beyond that is a reason to open the filing and read the footnotes. OQRO states the dates as filed and does not decide which filings were late. See the methodology.

How to check one yourself

1. Open the filing on EDGAR and note the transaction date in Table I.
2. Note the filing date shown by EDGAR.
3. Count business days, skipping weekends and federal holidays.
4. Read the footnotes for a plan or a notification date.

The codes used on the form are listed in Form 4 transaction codes.