Publications Memos Go Back SEC Amends Issuer Common Stock Repurchase Safe Harbor 12.19.03 This memo explains the SEC amendments to Rule 10b-18 which provides a limited safe harbor from claims of market manipulation in the context of issuers repurchasing their own common stock. Related Insights 02.19.25 | Publications Newly Proposed Amendments to the Delaware General Corporation Law 02.14.25 | Publications EDGAR Next Is Approaching: What to Do Now 02.13.25 | Publications Simpson Thacher Sustainability and ESG: Regulatory Update – February 2025 Related Services Related Practice Areas Corporate Capital Markets Debt