美股招股观察

What Is Regulation FD? Compliance Essentials for Fair Disclosure Rules

On 18 March 2025, the U.S. Securities and Exchange Commission (SEC) levied a USD 1.5 million civil penalty against a Nasdaq-listed biotechnology firm for violating Regulation FD — the first such enforcement action in 2024–2025 cycle. The case, In the Matter of Acutus Medical, Inc., centred on a single investor call where the company’s CFO selectively disclosed material, non-public information regarding a pending merger termination without simultaneously disseminating it to the broader market. For Hong Kong-based sponsors, family offices, and cross-border issuers pursuing a NYSE or NASDAQ listing, this action serves as a stark reminder: Regulation FD compliance is not a procedural afterthought but a core listing obligation under SEC Rule 100 (17 CFR § 243.100). The SEC’s renewed focus on selective disclosure, combined with the 2024 amendments to the SEC’s selective disclosure safe harbours under Rule 100(b)(2)(iv), means that any issuer with a Hong Kong parent, BVI holding vehicle, or PRC operating entity must embed fair disclosure protocols into their pre-IPO and post-listing compliance architecture. This article unpacks the mechanics of Regulation FD, the specific triggers for disclosure obligations, and the practical steps Hong Kong–based issuers must take to avoid enforcement risk.

The Statutory Framework: What Regulation FD Requires

Regulation FD (Fair Disclosure) was adopted by the SEC in August 2000 under Section 13(a) of the Securities Exchange Act of 1934. Its core mandate is simple: when an issuer, or a person acting on its behalf, discloses material non-public information (MNPI) to certain enumerated persons — typically securities market professionals or holders of the issuer’s securities who may trade on the information — the issuer must simultaneously (for intentional disclosures) or promptly (for unintentional disclosures) make public disclosure of that information. The rule applies to any issuer with a class of securities registered under Section 12 of the Exchange Act or that is required to file reports under Section 15(d), including all foreign private issuers listing on NYSE or NASDAQ.

Materiality: The Threshold for Disclosure

The SEC defines materiality under the standard established in TSC Industries, Inc. v. Northway, Inc. (1976): information is material if there is a substantial likelihood that a reasonable investor would consider it important in making an investment decision. In the context of Regulation FD, the SEC Staff has consistently held that this includes earnings guidance, merger negotiations, changes in auditors, and material operational developments. For Hong Kong–based issuers, the materiality threshold is particularly relevant when disclosing PRC regulatory developments — such as the CSRC’s tightening of offshore listing rules under the 2023 Filing Requirements — which could directly affect share price. The SEC’s 2024 interpretive release (Release No. 33-11280) clarified that materiality must be assessed on a case-by-case basis, but that issuers cannot rely on a “reasonable investor” standard that differs between domestic and foreign markets.

Who Is a “Covered Person”?

Regulation FD applies to disclosures made to securities market professionals — including analysts, institutional investors, and investment advisers — as well as to holders of the issuer’s securities who may trade on the information. Critically, the rule does not apply to disclosures to the media, to credit rating agencies (under certain conditions), or to persons who owe a duty of trust or confidence to the issuer (e.g., attorneys, accountants, or investment bankers). For Hong Kong–based issuers, this distinction is vital: a private meeting with a Hong Kong–based sell-side analyst covering the stock triggers Regulation FD; a meeting with the company’s sponsor under a Hong Kong–style placing agreement does not, provided the sponsor is bound by confidentiality obligations under HKEX Listing Rules Chapter 3A.

The Mechanics of Compliance: Simultaneous vs. Prompt Disclosure

The SEC draws a critical distinction between intentional and unintentional selective disclosures. An intentional disclosure occurs when the person making the disclosure knows, or is reckless in not knowing, that the information is both material and non-public. For intentional disclosures, the issuer must make public disclosure simultaneously with the selective disclosure. For unintentional disclosures — where the issuer did not know the information was material or non-public — the issuer must make public disclosure promptly, defined as within 24 hours of learning of the breach.

The “Prompt” Disclosure Clock

The 24-hour clock under Rule 100(b)(2) starts when an officer, director, or authorised employee of the issuer learns that a selective disclosure of MNPI has occurred. In practice, this means that Hong Kong–based issuers must have a designated compliance officer — typically the company secretary or general counsel — who monitors all investor interactions in real time. The SEC’s 2024 enforcement action against Acutus Medical highlighted a failure in this regard: the CFO had disclosed merger termination details during a one-on-one call with a single institutional investor, and the company did not issue a Form 8-K until 48 hours later. The SEC found that the delay, even though unintentional, constituted a violation because the issuer failed to act promptly once it learned of the breach.

Public Disclosure Mechanisms

Under Rule 101(c), public disclosure can be made through filing a Form 6-K (for foreign private issuers) or Form 8-K (for domestic issuers) with the SEC, or through a press release distributed via a widely circulated news or wire service. For Hong Kong–listed companies with a secondary listing on NYSE or NASDAQ, the SEC has accepted the filing of a HKEX announcement on the HKEX website as a valid form of public disclosure, provided the announcement is in English and is disseminated through a mechanism that reaches U.S. investors. However, the SEC Staff has cautioned that a filing solely on the HKEX website may not satisfy the “broad, non-exclusionary” standard if the information is not simultaneously posted on the issuer’s own website or distributed via a newswire.

Enforcement Landscape: SEC Priorities and Penalties

The SEC’s enforcement of Regulation FD has been cyclical, with a notable uptick in 2024–2025. According to the SEC’s 2024 Annual Enforcement Report, the Division of Enforcement brought 14 Regulation FD actions in fiscal year 2024, compared to 9 in 2023 and 6 in 2022. The average civil penalty in these actions was USD 1.2 million, with the largest — a USD 4.5 million penalty against a NYSE-listed pharmaceutical company — arising from a series of selective disclosures to a single hedge fund.

The Acutus Medical Precedent

The Acutus Medical case (SEC Administrative Proceeding No. 3-21984, 2024) is instructive for Hong Kong–based issuers. The company, a medical device manufacturer incorporated in the Cayman Islands with operations in California, had its CFO disclose during a private investor call that the company’s merger agreement with a larger competitor was likely to be terminated. The investor sold its entire position the same day. The SEC charged that the CFO’s disclosure was intentional — he knew the merger was material and non-public — and that the company failed to simultaneously disclose the information. The penalty of USD 1.5 million was imposed on the company, not the CFO individually, reflecting the SEC’s view that the issuer bears primary responsibility for establishing and enforcing disclosure controls.

SFC and HKEX Parallels

While Regulation FD is a U.S. rule, Hong Kong–based issuers should note the parallel obligations under the SFC’s Code of Conduct for Persons Licensed by or Registered with the SFC (Chapter 571), particularly paragraph 12.1, which prohibits licensed persons from disclosing MNPI to select clients. The SFC’s 2023 enforcement action against a Hong Kong–based asset manager for selective disclosure of a listed company’s earnings guidance — resulting in a HK$ 8 million fine — demonstrates that the principle of fair disclosure is not unique to the U.S. market. For issuers cross-listed on HKEX and NYSE, compliance with both regimes is mandatory, and a breach of Regulation FD may also trigger an investigation by the SFC under the Securities and Futures Ordinance (Cap. 571).

Practical Compliance Architecture for Hong Kong–Based Issuers

For a Hong Kong–incorporated or PRC-based issuer preparing for a U.S. listing, the compliance architecture must address three distinct phases: pre-IPO roadshow, post-listing analyst relations, and ongoing disclosure controls.

Pre-IPO Roadshow Compliance

During the pre-IPO roadshow, the issuer is not yet subject to Regulation FD because the securities are not yet registered under Section 12 of the Exchange Act. However, the SEC’s anti-fraud provisions under Rule 10b-5 still apply, and selective disclosure of material information to a single investor could constitute fraud. The standard practice is to use a written prospectus (招股書) filed under the Securities Act of 1933, and to ensure that all oral presentations during the roadshow are consistent with the prospectus. For Hong Kong–based sponsors, the HKEX’s Guidance Letter HKEX-GL86-16 on pre-IPO communications should be consulted, as it sets out the requirement that all material information be included in the listing document.

Post-Listing Analyst and Investor Calls

Once listed, every interaction with sell-side analysts or institutional investors must be governed by a scripted disclosure policy. The issuer should designate a single point of contact — typically the investor relations officer — who is trained to recognise MNPI. Any deviation from the script that involves material information must be immediately escalated to the compliance officer. The SEC has accepted the use of “closed call” protocols where the issuer posts a written summary of the call on its website within 24 hours, provided the summary is comprehensive and includes all material information disclosed.

Disclosure Controls and Procedures

Under SEC Rule 13a-15(a), all issuers must maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed is recorded, processed, summarised, and reported within the time periods specified. For Hong Kong–based issuers, this means implementing a system that captures all investor interactions — including emails, phone calls, and in-person meetings — and logs them against a materiality checklist. The SEC’s 2024 interpretive release emphasised that the CEO and CFO must certify the effectiveness of these controls annually under the Sarbanes-Oxley Act Section 302. For family offices and investment holding companies, where the principal may be the sole decision-maker, the SEC has indicated that a single-person control environment is insufficient; independent oversight is required.

Actionable Takeaways

  1. Implement a real-time investor interaction monitoring system that logs all communications with analysts and institutional investors, with a mandatory escalation protocol for any deviation from scripted disclosures.
  2. Designate a U.S.-qualified compliance officer — either in-house or outsourced to a Hong Kong–based SEC-registered adviser — who is responsible for determining materiality and initiating Form 6-K filings within the 24-hour window.
  3. Review all existing confidentiality agreements with sponsors, underwriters, and advisers to ensure they contain explicit provisions binding the recipient to non-disclosure of MNPI, consistent with the safe harbour under Rule 100(b)(2)(iv).
  4. Conduct a pre-listing gap analysis comparing the issuer’s current disclosure controls against the SEC’s 2024 interpretive release, with particular attention to the definition of “prompt” disclosure and the handling of unintentional selective disclosures.
  5. Establish a cross-border disclosure protocol that harmonises the timing and content of disclosures under Regulation FD, the SFC’s Code of Conduct, and HKEX Listing Rules, to avoid conflicting obligations in a dual-listing scenario.