Regulation S-K
Regulation S-K is the SEC's comprehensive set of disclosure rules governing the non-financial statement portions of registration statements, annual reports (Form 10-K), quarterly reports (Form 10-Q), and proxy statements — prescribing what narrative, operational, and business information public companies must disclose.
Regulation S-K establishes a standardized framework for narrative disclosure that complements the financial statement requirements of Regulation S-X. Together, these two regulations define the disclosure architecture for virtually all SEC-registered public company filings.
Item 101 requires a description of the company's business, including its principal products and services, competitive conditions, human capital resources (a requirement significantly expanded in 2020 to capture workforce metrics), materials and suppliers, regulatory environment, and research and development activities. The business description must convey how the company actually operates, not merely a legal recitation of its charter.
Item 102 requires a description of the company's properties, including owned and leased facilities. Item 103 requires disclosure of pending legal proceedings that exceed materiality thresholds or involve government parties. Item 105 (previously Item 503) requires a plain-English risk factor section identifying the material risks facing the company and its securities — a section that has expanded dramatically in length in modern filings and is scrutinized by investors seeking to understand downside scenarios.
Management's Discussion and Analysis (MD&A) under Item 303 is perhaps the most analytically valuable section of any annual or quarterly report. Companies must discuss known trends, demands, commitments, events, and uncertainties that are reasonably likely to have a material effect on financial condition and results of operations. The SEC has emphasized that MD&A should provide investors with management's perspective on the numbers — explaining why revenues grew or declined, what drove margin changes, and what management sees as the key drivers of future performance.
Executive compensation disclosure under Items 402 and 407 requires detailed tables showing total compensation for named executive officers, along with a Compensation Discussion and Analysis (CD&A) explaining the company's compensation philosophy and program design. Pay ratio disclosure (comparing CEO pay to median employee pay) was added by the Dodd-Frank Act. Pay versus performance disclosure was added by SEC rules effective in 2023. The SEC periodically updates Regulation S-K to address new disclosure needs — cybersecurity, climate risk, and human capital disclosures have been recent areas of focus.