What do terms such as 6-K, 20-F, and SC 13G refer to in U.S. publicly traded companies’ financial reports?

I have previously answered this question. The U.S. Securities and Exchange Commission (SEC) requires publicly traded companies to disclose various types of information using standardized filing forms—commonly referred to as 'Forms' (typically translated as 'forms' or 'filing forms'). Different circumstances require submission of different Forms; among the most important are S-1 (registration statement for domestic initial public offerings) or F-1 (registration statement for foreign private issuers), 10-K (annual report), 10-Q (quarterly report), and 8-K (report of material events). The specific meanings of the three Forms mentioned in the question are: 6-K: Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 (required disclosure of specified financial information by foreign private issuers whose principal place of business is outside the United States). 20-F: Registration Statement / Annual Report / Transition Report (annual report filed by foreign private issuers whose principal place of business is outside the United States).

How to Read U.S. Publicly Traded Companies’ Financial Reports (an introductory article)

What exactly do these alphanumeric designations—such as numbers followed by letters—mean in U.S. publicly traded companies’ financial reports? And how can one read and understand these financial reports? First, it’s essential to understand that the U.S. Securities and Exchange Commission (SEC) mandates that publicly traded companies disclose various types of information using standardized filing forms—commonly called 'Forms' (usually translated as 'forms' or 'filing forms'). Different situations require different Forms; among the most important are S-1 (registration statement for domestic IPOs) or F-1 (registration statement for foreign private issuers), 10-K (annual report), 10-Q (quarterly report), and 8-K (report of material events). 1. Securities Offering Registration Statement (Registration Statement for Securities Offerings) When a company issues new securities, the SEC requires it to file a registration statement. This document includes: 1) Disclosures about the securities being offered for sale; 2) The relationship between the newly issued securities and the company’s other outstanding securities; 3) Information similar to that included in the annual report; 4) Audited financial statements; 5) A description of business risk factors. A major distinction between U.S. and Chinese capital markets is that U.S. companies list via a registration-based system: as long as disclosures comply with SEC requirements and financial metrics (e.g., revenue scale) meet exchange listing standards, the company may go public. However, listing in the U.S. does not automatically equate to fundraising. Meeting listing requirements merely qualifies a company to trade publicly; actual fundraising depends on investor demand—i.e., listing is a necessary prerequisite for public fundraising, but listing alone does not guarantee successful capital raising. Initial Public Offerings (IPOs): Currently the most common and highest-capital-raising method. The process spans from filing the S-1 registration statement (or F-1 for foreign issuers) to responding to SEC comments, conducting roadshows and pricing, and finally listing on an exchange. Some Chinese companies incorporate in the U.S. before listing; because they formally become U.S. entities, their IPOs also require filing Form S-1—for example, Sohu. Similarly, reverse merger (or 'shell acquisition') listings involve injecting assets into a U.S.-based shell company; since the resulting entity is formally a U.S. company, subsequent share issuances also require filing Form S-1. 2. Form 10-K Applicable to U.S. domestic public companies. Within 90 days after the end of each fiscal year (or within 60 days for companies with $75 million or more in total assets), companies must file Form 10-K with the U.S. Securities and Exchange Commission (SEC). Its contents include corporate history, organizational structure, stock information, financial performance, and other relevant details.

ASP Isotopes Inc Files Form 8K on October 26

Oct 26, 2026

ASP Isotopes Inc filed a Form 8K with the SEC on October 26, signaling potential material events, though the announcement lacked specific operational details.

ASP Isotopes Inc. Files Form 8K; Stock Rises 3.86%

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