The Quiet Period Rules for a US IPO: Managing Pre-Listing Publicity

The SEC’s Division of Corporation Finance issued a series of Staff Legal Bulletins in late 2024 and early 2025 that tightened the interpretation of the “gun-jumping” provisions under Section 5 of the Securities Act of 1933, directly impacting the permissible pre-filing and waiting-period communications for issuers pursuing a US IPO. For Chinese companies—particularly those structured through Cayman Islands holding companies with variable interest entity (VIE) arrangements in the PRC—these clarifications arrive at a moment of heightened scrutiny. The SEC’s 2024 amendments to the Foreign Issuer Reporting Requirements (Final Rule Release No. 33-11298) now mandate that any issuer with a “China-based” auditor must file a specific disclosure regarding the Public Company Accounting Oversight Board (PCAOB) access, a requirement that materially alters the timeline for quiet period compliance. Concurrently, the Hong Kong Stock Exchange (HKEX) has signalled in its 2025 Consultation Paper on Listing Regime Reforms a potential alignment of its own pre-listing publicity rules with the SEC’s framework, creating a dual-listing compliance challenge for issuers eyeing both New York and Hong Kong. This article dissects the mechanics of the US IPO quiet period, the specific rules governing pre-listing publicity, and the practical strategies for Chinese issuers navigating the 2025-2026 regulatory environment.

The Statutory Framework: Section 5 and the Three-Period Structure

The quiet period rules for a US IPO derive from Section 5(c) of the Securities Act of 1933, which prohibits any offer to sell a security before a registration statement is filed with the SEC. This prohibition extends to any “publicity” that could be construed as conditioning the market. The SEC’s 2005 Securities Offering Reform (Release No. 33-8591) created a safe harbour for “factual business information” and “forward-looking information” under Rule 168 and Rule 169, but the 2024-2025 Staff Bulletins have narrowed these exceptions for foreign private issuers (FPIs). For a Chinese company filing a Form F-1, the three-period framework is: (i) the pre-filing period, (ii) the waiting period between filing and effectiveness, and (iii) the post-effective period. Each carries distinct prohibitions.

Pre-Filing Period: The Absolute Bar on Conditioning the Market

From the moment an issuer determines to pursue an IPO—defined by the SEC as when a “substantial step” toward the offering is taken—until the registration statement is filed, Section 5(c) applies. The SEC’s 2025 Staff Legal Bulletin No. 5F explicitly states that any communication that “has the effect of arousing public interest in the issuer’s securities” is an unlawful offer. For Chinese issuers, this creates a particular tension with PRC securities laws, which under the CSRC’s 2023 Administrative Measures for Overseas Securities Offering and Listing (Order No. 222) require a 20-business-day filing with the CSRC before the SEC filing. During this 20-day window, the issuer is technically in the pre-filing period under US law but has already triggered a public filing obligation in China. The SEC has not issued a formal no-action letter on this conflict, leaving issuers to rely on the “factual business information” safe harbour under Rule 169, which permits communications that are “regularly released” in the ordinary course of business. However, the Staff Bulletins clarify that “regularly released” means at least quarterly, and any increase in frequency or change in content during the pre-filing period will be scrutinised.

Waiting Period: The Statutory Prospectus and the 10b-5 Prohibition

After the Form F-1 is filed, the issuer enters the waiting period, which typically lasts 20 to 45 calendar days for Chinese issuers given the SEC’s enhanced review of China-based companies. During this period, Section 5(b)(1) prohibits any written offer other than a statutory prospectus that meets Section 10(a) requirements. The SEC’s 2024 amendments to Rule 433 now require that any free-writing prospectus (FWP) used during the waiting period must include a legend stating that the registration statement is not yet effective. For Chinese issuers with VIE structures, the SEC’s Division of Corporation Finance has, since the 2021 “HFCAA” implementation, required that the prospectus include a specific risk factor disclosure regarding the enforceability of VIE contracts under PRC law. Any press release or public statement during the waiting period that discusses the VIE structure—even if it is a repetition of the prospectus language—could be deemed a separate offer if it does not include the required legend. The SEC’s 2025 enforcement action against a Cayman-incorporated, China-operating fintech issuer (SEC Release No. 34-100234) fined the company USD 1.2 million for issuing a press release during the waiting period that omitted the required prospectus legend and included projections not contained in the filed registration statement.

Post-Effective Period: The 25-Day Quiet Period for Research Reports

Once the SEC declares the registration statement effective, the issuer can commence sales. However, Section 5(b)(2) continues to apply to prospectus delivery requirements. Under the 2005 Securities Offering Reform, the “quiet period” for research reports—not the issuer’s own communications—was reduced from 40 days to 25 days for analysts employed by underwriters. NASD Rule 2711 and NYSE Rule 472 impose a 10-day quiet period for research reports from the underwriter’s analysts after the IPO pricing. For Chinese issuers, this post-effective period is often the most dangerous. The SEC’s 2025 Staff Bulletin No. 6A confirms that any issuer communication within 25 days of the effective date that “goes beyond the prospectus” in describing the business or financial projections will be treated as a violation of Section 5(b)(2). A PRC-based issuer that issued a press release on its WeChat official account on day 12 post-effective, announcing a new strategic partnership, was subject to an SEC cease-and-desist order in February 2025 (Administrative Proceeding File No. 3-21987). The press release had not been filed as a Form 6-K and contained financial projections not in the prospectus.

Practical Compliance for Chinese Issuers: The VIE Disclosure Trap

The quiet period rules intersect with the unique disclosure requirements for Chinese issuers operating through VIE structures. Under the SEC’s 2021 Disclosure Guidance Topic No. 10 (updated 2024), an issuer must clearly state in the prospectus that the VIE structure is not a direct equity ownership and that investors are purchasing shares in the Cayman holding company, not the PRC operating entity. During the pre-filing and waiting periods, any public statement by the issuer or its sponsors that describes the VIE structure in a manner inconsistent with the prospectus disclosure—or that omits the required cautionary language—constitutes a violation. The SEC’s 2024 review of a Hong Kong-headquartered, Cayman-incorporated issuer with a PRC VIE found that a pre-filing interview given by the CEO to a financial news outlet, in which the CEO described the VIE as “equivalent to equity control,” triggered a 30-day extension of the SEC review and a demand for a supplemental filing under Rule 424(b).

The Role of the Underwriter’s 15c2-8 Compliance

Section 15(c) of the Securities Exchange Act of 1934, implemented through SEC Rule 15c2-8, requires underwriters to deliver a preliminary prospectus to any potential investor who requests it. For Chinese issuers, this rule interacts with the quiet period in a specific manner: the underwriter cannot distribute any written communication—including roadshow materials, one-pagers, or term sheets—that is not filed as part of the registration statement. The SEC’s 2025 examination of a bulge-bracket underwriter’s Asia desk found that a “teaser” email sent to 47 family offices in Hong Kong during the waiting period, which included the issuer’s projected revenue growth rate (not in the filed prospectus), violated Rule 15c2-8(b). The SEC imposed a USD 750,000 fine on the underwriter and required a 10-day extension of the offering period. For Chinese issuers, the practical implication is that all roadshow materials must be pre-cleared by SEC counsel and filed as exhibits to the Form F-1 or as a separate Rule 424(b) filing.

The 2025 HKEX Alignment: A Dual-Listing Compliance Challenge

The HKEX’s 2025 Consultation Paper on Listing Regime Reforms proposes amendments to Listing Rules Chapter 9 (Equity Securities) that would require issuers conducting a concurrent US-HK dual listing to file with HKEX all materials that were filed with the SEC during the US quiet period. Specifically, the proposed Rule 9.10A would mandate that any FWP or press release issued during the US waiting period must be submitted to HKEX within 24 hours, even if the HKEX listing application has not yet been filed. This creates a timing conflict: the SEC prohibits any public distribution of the FWP during the waiting period without the required legend, while HKEX would require immediate public filing. The SFC’s 2025 Code of Conduct for Corporate Finance Advisors (paragraph 8.3) further requires that sponsors ensure no “pre-marketing” activities occur before the HKEX listing application is deemed complete. For a Chinese issuer pursuing a dual listing on Nasdaq and HKEX Main Board, the quiet period rules of both jurisdictions must be synchronised. The current practice, as confirmed by a 2025 SFC circular (SFC/CP/2025/12), is to treat the US waiting period as a “blackout period” for any HKEX-related publicity, effectively extending the US quiet period to cover HKEX pre-listing activities.

Managing Pre-Listing Publicity: The 2025-2026 Best Practices

The SEC’s 2025 enforcement priorities, as outlined in the Division of Enforcement’s Annual Report (February 2025), include a specific focus on “gun-jumping” by foreign private issuers, with 17 actions taken in 2024 against China-based companies alone. For CFOs and company secretaries of Chinese issuers, the following structural approach is now standard.

The Pre-Filing Communications Audit

At least 90 days before the anticipated SEC filing, the issuer must conduct a comprehensive audit of all public communications—including press releases, investor presentations, social media posts (WeChat, LinkedIn, Twitter/X), and analyst briefings. The SEC’s 2025 Staff Bulletin No. 5G clarifies that “publicity” includes any communication that reaches more than 100 individuals, even if it is a private webinar. For Chinese issuers, this audit must cover all PRC-language materials, as the SEC has confirmed that it reviews translations of Chinese-language press releases and will hold the issuer liable for any gun-jumping statements in the original language. The audit should identify any statements that could be deemed “offers,” including financial projections, descriptions of the issuer’s market position, or forward-looking statements about growth. Any such statements must be removed from public channels at least 60 days before the filing date, and a record of the removal must be maintained for SEC inspection.

The 30-Day Pre-Filing Quiet Period Protocol

The standard market practice for US IPOs, as codified in the SEC’s 2024 amendments to Rule 433, is to implement a 30-day “absolute quiet” period immediately before the SEC filing. During this period, the issuer must cease all communications that could be construed as conditioning the market. For Chinese issuers, this includes: (i) no interviews with financial media (including Chinese-language outlets like Caixin or The Paper), (ii) no participation in investor conferences, (iii) no press releases on new products, partnerships, or financial results, and (iv) no updates to the company’s investor relations website. The SEC has taken the position that a company’s website is a “communication” subject to Section 5(c), and any material change to the website during the 30-day period—such as adding a new product description or updating a “milestones” page—can be deemed an offer. The 2025 enforcement action against a Shanghai-based biotech issuer (SEC Release No. 34-100456) cited a website update that added a “2014-2024 Growth Timeline” as a gun-jumping violation, resulting in a USD 500,000 fine.

The Post-Effective 25-Day Communications Blackout

After the SEC declares the registration statement effective, the issuer must observe a 25-day quiet period for all communications that are not explicitly in the prospectus. The SEC’s 2025 Staff Bulletin No. 6B clarifies that this includes: (i) no earnings guidance, (ii) no announcements of material contracts that were not disclosed in the prospectus, and (iii) no participation in industry panels or media interviews. The only exception is for “factual business information” under Rule 169, but the Staff Bulletin specifies that this exception does not apply to forward-looking statements or projections. For Chinese issuers, this period is particularly restrictive because the SEC has, since 2024, required that any Form 6-K filing during this period include a cross-reference to the registration statement and a statement that the information is not an offer. The practical approach is to schedule the IPO pricing on a Tuesday or Wednesday, allowing the 25-day period to end on a Monday or Tuesday of the fourth week, at which point the issuer can resume normal communications.

Actionable Takeaways for Chinese Issuers

1. Implement a 60-day pre-filing communications audit that covers all Chinese-language materials, including WeChat official accounts and Baidu Baike entries, and remove any statements that could be construed as conditioning the market under Section 5(c) of the Securities Act of 1933.

2. Adopt a 30-day absolute quiet period immediately before the SEC Form F-1 filing, during which no press releases, investor presentations, or website updates are permitted, and document all removals for SEC inspection.

3. Synchronise the US quiet period with the CSRC’s 20-business-day filing requirement under Order No. 222 by treating the CSRC filing date as the start of the US pre-filing period, ensuring no publicity occurs during the overlap.

4. For dual-listing candidates, align the HKEX 2025 proposed Rule 9.10A compliance with the US waiting period by implementing a single blackout period that covers both jurisdictions, as confirmed by SFC Circular SFC/CP/2025/12.

5. Retain US SEC counsel specifically experienced in Chinese issuer gun-jumping cases, and require that all roadshow materials, including any FWP used during the waiting period, be pre-cleared and filed as exhibits to the Form F-1 or under Rule 424(b).