| The offering document | A registration statement (the SEC says any company may use Form S-1), with the prospectus as Part I and audited financial statements. | A prospectus approved by the FCA and published before the shares are admitted to trading. | SEC, What is a registration statement?; PRM 1.4.1R |
| Review before launch | The SEC staff can review drafts on a nonpublic basis if the company files them publicly at least 15 days before any road show. | The FCA reviews the draft prospectus before approving it. | SEC, March 2025; PRM 1.4.1R |
| Adviser the rules require | No equivalent of a sponsor; counsel and the underwriters lead the work. | An FCA-approved sponsor when a prospectus must be submitted to the FCA. | UKLR 4.2.1R |
| Audited years | Three fiscal years, or two for an emerging growth company or a smaller reporting company. | As PRM sets for the prospectus; confirm with your sponsor and reporting accountants. | SEC, emerging growth companies; Regulation S-X Rule 8-02; PRM |
| Board | A majority of independent directors, with twelve months from the first day of trading for an IPO company (Nasdaq). | The UK Corporate Governance Code 2024 on a comply or explain basis; independence from any controlling shareholder. | Nasdaq Rules 5605(b) and 5615(b); FRC; UKLR 5.3.1R |
| Audit committee | At least three independent members meeting Rule 10A-3, phased in over a year for an IPO (Nasdaq). | A body with a majority of independent members, one with accounting or auditing competence, and an independent chair. | Nasdaq Rules 5605(c) and 5615(b); DTR 7.1 |
| Internal controls | CEO and CFO certifications in each 10-Q and 10-K; management’s report from the second annual report; auditor attestation unless an emerging growth company or non-accelerated filer. | The Code’s Provision 29 declaration on material internal controls, for financial years from 1 January 2026. | SOX 302 and 404; Item 308 of Regulation S-K; FRC |
| Shares in public hands | Set by the exchange’s own listing standards. | At least 10% of the class in public hands at admission. | UKLR 5.5.2R |
| Publicity before the offering | Section 5 of the Securities Act, with the safe harbours in Rules 163A and 169 and testing the waters under Rule 163B. | The financial promotion restriction in section 21 of FSMA 2000. | Rules 163A, 163B and 169; FSMA s21 |
| Insiders | Section 16 reports from directors, officers and 10% holders; changes reported within two business days. | Insider lists kept under UK MAR Article 18, and PDMRs’ dealings notified within three working days under Article 19. | Exchange Act s16(a); UK MAR Articles 18 and 19 |
| Periodic reports | Forms 10-K, 10-Q and 8-K; the first 10-Q within 45 days of effectiveness or when otherwise due, whichever is later. | Annual financial report within four months of the year end; half-yearly report within three months. | Rule 13a-13; DTR 4.1.3R and 4.2.2R |