Form 8-K

Form 8-K is the U.S. Securities and Exchange Commission form on which a public company reports a specified significant event as it happens, rather than waiting for its next quarterly or annual report. The form is prescribed by 17 CFR 249.308, which says only that it "shall be used for the current reports required by Rule 13a-11 or Rule 15d-11" under the Securities Exchange Act of 1934 "and for reports of nonpublic information required to be disclosed by Regulation FD". Everything that gives the form its shape, including the list of triggering events and the filing deadline, lives in the form document itself rather than in the regulation that names it.

The practical name for it is the current report, and the contrast is worth drawing once. A Form 10-K is the annual account of a business and a Form 10-Q is its quarterly counterpart; both arrive on a calendar. Form 8-K arrives because something happened, and its General Instruction B.1 gives a company four business days from the event to file or furnish it.

The trigger is an enumerated item, not a general duty to speak. General Instruction B.1 requires a report "upon the occurrence of any one or more of the events specified in the items in Sections 1-6 and 9 of this Form". That wording matters, because it means the question a company asks is not "is this material?" in the abstract but "does this fall inside one of these items?" The nine sections group the items by subject:

Section 1 covers the registrant's business and operations, including entry into or termination of a material definitive agreement, bankruptcy or receivership, and material cybersecurity incidents. Section 2 covers financial information: completed acquisitions and dispositions, results of operations, new direct financial obligations, events accelerating an obligation, exit and disposal costs, and material impairments. Section 3 covers securities and trading markets: a notice of delisting or failure to satisfy a listing standard, unregistered sales of equity securities, and material modifications to the rights of security holders. Section 4 covers a change in the company's certifying accountant and a determination that previously issued financial statements should no longer be relied on. Section 5 covers corporate governance and management: a change in control, the departure or election of directors and certain officers, charter and bylaw amendments, a suspension of trading under employee benefit plans, changes to the code of ethics, a change in shell company status, the results of a shareholder vote, and shareholder director nominations. Section 6 is specific to asset-backed securities. Section 7 is Regulation FD disclosure, Section 8 is other events the company elects to report, and Section 9 carries financial statements and exhibits.

The four-business-day clock, and the weekend rule most summaries omit. Unless an item says otherwise, the report is due "within four business days after occurrence of the event". If the event occurs on a Saturday, Sunday or holiday on which the SEC is not open for business, the instruction says the four-business-day period "shall begin to run on, and include, the first business day thereafter", so the first business day counts as day one rather than as a starting gun that fires the day after. A few items run on their own clocks: a material cybersecurity incident under Item 1.05 is reported within four business days after the company determines the incident is material, not after it occurs; final voting results under Item 5.07 are due within four business days after the results are known; and a report furnished under Item 7.01 to satisfy Regulation FD runs on Regulation FD's own timing in 17 CFR 243.100(a).

Filed versus furnished, as the form itself introduces it. General Instruction B.2 provides that information in a report furnished under Item 2.02 or Item 7.01 "shall not be deemed to be 'filed' for purposes of Section 18 of the Exchange Act", and is not otherwise subject to the private action that section creates, "unless the registrant specifically states that the information is to be considered 'filed' under the Exchange Act or incorporates it by reference into a filing under the Securities Act or the Exchange Act". The same instruction extends the treatment to exhibits relating to those two items. This is a distinction about one narrow, reliance-based private right of action, not a liability shield in general; the page for Form 10-K carries that framework in full, and an investor reading a furnished earnings release should not treat "furnished" as meaning the numbers are outside the antifraud rules.

The same form spells one phrase two ways, and that is not a typo to correct. General Instruction A.1 refers to "reports of nonpublic information required to be disclosed by Regulation FD", matching the spelling used in 17 CFR 249.308 and throughout Regulation FD itself. Item 2.02, by contrast, speaks of "material non-public information", hyphenated, in both of its paragraphs and in its instructions. Anyone quoting the form should follow the paragraph being quoted rather than harmonizing across it.

What an 8-K is not. It is not audited, it is not comprehensive, and it is not a substitute for reading the periodic reports. Item 2.02's own Instruction 4 says the item does not apply to a disclosure made in a Form 10-Q or Form 10-K, which is a small reminder of the division of labor: the current report carries the event, and the periodic report carries the accounting.

Start with the event, because the form is event-driven. A company signs a supply agreement large enough to count as a material definitive agreement. That is Item 1.01. Counsel and the disclosure committee draft a short narrative, attach the agreement as an exhibit under Item 9.01 if the item requires it, and the company files through EDGAR, where the report is public the moment it is accepted.

Take an example of the deadline arithmetic, which is where the weekend rule earns its place. The general rule in General Instruction B.1 is that a report is due "within four business days after occurrence of the event", so for an event on an ordinary business day the count starts the next business day. An event on a Monday, in a week of ordinary business days, gives Tuesday as day one and Friday as day four.

A weekend event is counted differently, and it is the one case the instruction spells out: if the event falls on a Saturday, a Sunday or a holiday on which the Commission is closed, the four-business-day period "shall begin to run on, and include, the first business day thereafter". So a Saturday event makes Monday day one and the report due Thursday, a day earlier than the Monday event above. Treating the day of a weekday event as day one is the step that most often goes wrong by exactly one day.

Now follow what the reader gets. An 8-K reporting Item 4.01, a change in the registrant's certifying accountant, tells an investor which accountant left, when, and whether there were disagreements on accounting matters. An 8-K reporting Item 3.01 tells an investor the company has received a notice that it no longer satisfies a continued listing standard. Neither of those facts would surface in a periodic report for weeks or months, which is the whole point of the form.

Pros

• It is the fastest official disclosure channel a public company has, and it is free, primary and searchable on EDGAR rather than filtered through a news outlet.
• The item structure makes filings comparable across companies, so a reader who knows Item 5.02 knows where to look for an executive departure at any issuer.
• The four-business-day standard is short enough that the absence of an 8-K is itself information about a rumored event, at least for the events the items actually cover.
• Exhibits are attached, so the underlying agreement or press release is often available in full rather than in summary.

Cons

• The duty is item-triggered, so an event that matters to an investor but falls outside every listed item may never produce a report at all.
• Information furnished under Item 2.02 or Item 7.01 is expressly not deemed filed for Section 18 purposes, which is a real difference in one investor remedy even though the antifraud rules still apply.
• The content is unaudited and often written to the minimum the item requires, so an 8-K can be technically complete and still tell a reader very little.
• Some items give the company control over when the clock starts, most visibly Item 1.05, which runs from the company's own determination that a cybersecurity incident is material.