What is Regulation FD? (2026)

Regulation FD is the SEC rule that stops a listed company from feeding material nonpublic information to a favoured few. If an issuer gives that information to a covered outsider, such as a sell-side analyst, an investment adviser, or a fund manager, it must put the same information in front of everyone. FD stands for fair disclosure. This guide explains what Regulation FD is, who it covers, how fast a company has to go public, and where the disclosure lands. It is not investment advice.

What does Regulation FD require?

Rule 243.100(a) sets the whole rule in one sentence: whenever an issuer, or any person acting on its behalf, discloses material nonpublic information about the issuer or its securities to a covered person, the issuer must make public disclosure of that information. The timing depends on intent:

• Simultaneously, for an intentional disclosure.
• Promptly, for a non-intentional disclosure.

"Intentional" is defined in 243.101(a): the person making the disclosure knows, or is reckless in not knowing, that the information is both material and nonpublic. The SEC adopted the rules in August 2000 and they took effect on 23 October 2000.

Regulation FD is a levelling rule, not a disclosure mandate. It does not require a company to say anything in the first place. It requires that if the information goes to some outsiders, it goes to all investors.

Who is covered, and who is not?

Rule 243.100(b)(1) lists the recipients that trigger the obligation: brokers and dealers, investment advisers, institutional investment managers that filed a Form 13F for the most recent quarter ended before the disclosure, investment companies, persons associated with any of those, and holders of the issuer's securities where it is reasonably foreseeable that they will trade on the information. The 13F reference is literal: the rule names the same filing that discloses a manager's US equity positions.

Rule 243.100(b)(2) carves out disclosures that do not trigger it, including a person who owes the issuer a duty of trust or confidence, such as an attorney, investment banker, or accountant; a person who expressly agrees to keep the information confidential; and certain communications made in connection with a registered securities offering.

On the other side, 243.101(b) defines which issuers are bound: a company with a class of securities registered under Section 12 of the Exchange Act, or required to file reports under Section 15(d), including closed-end investment companies. Foreign private issuers are excluded, which is why the 20-F and 6-K filers sit outside it.

What does "promptly" mean?

This is the number people look up. Rule 243.101(d) defines promptly as soon as reasonably practicable, and in no event later than the later of 24 hours or the commencement of the next day's trading on the New York Stock Exchange, measured from when a senior official learns of the non-intentional disclosure.

How does the company make the disclosure public?

Rule 243.101(e) gives two routes: furnish or file a Form 8-K, which is why Item 7.01 of that form is titled Regulation FD Disclosure, or use another method reasonably designed to provide broad, non-exclusionary distribution of the information to the public. In practice that means an 8-K, a press release pushed through a wire service, or a webcast that was announced in advance and open to everyone.

One limit is worth knowing: under 243.102, failing to make a public disclosure required solely by Regulation FD is not by itself a violation of Rule 10b-5, the general antifraud rule. Regulation FD is enforced on its own terms.

Reading Regulation FD disclosures

Because the public route is usually an 8-K, Regulation FD leaves a dated, searchable trail on EDGAR. An Item 7.01 8-K appearing right after a conference or an investor meeting is often the tell that something was said in a room first. It sits alongside the other US disclosure rails, including the insider reports covered in what is a Form 4 filing and the materiality concepts in UPSI vs MNPI.

So, what is Regulation FD in one line: the SEC rule that forces material nonpublic information shared with analysts or funds out to every investor, simultaneously or within a day. Flock reads these public filings and keeps each one stamped with its date and source. What any of it means for your money is your call to make.