Publications Memos Go Back New SEC Rules on Selective Disclosure and Insider Trading 08.24.00 The Securities and Exchange Commission adopted new rules on selective disclosure and insider trading to take effect on October 23, 2000. Related Insights 05.23.25 | Publications Supreme Court: Settles Circuit Split on Pleading Standards for Prohibited-Transaction Claims 05.20.25 | Publications New Guidance From the SEC’s Division of Trading and Markets Signals a Welcome Shift on the SEC’s Approach to Crypto Asset Activities and Distributed Ledger Technology 05.15.25 | Publications Simpson Thacher Sustainability and ESG: Regulatory Update – May 2025 Related Services Related Practice Areas Corporate Capital Markets Debt Related Client Solutions Corporate Governance