The following is part of our annual publication Selected Issues for Boards of Directors in 2026. Explore all topics or download the PDF.

Two significant developments during 2025—one in Delaware corporate law and the other in federal securities law—could materially impact shareholder litigation in 2026 and beyond. In March 2025, following a number of controversial Delaware Court of Chancery decisions, the Delaware legislature passed S.B. 21, establishing safe harbors from litigation for certain board decisions and transactions that might otherwise be evaluated under the demanding entire fairness standard of review. Then, in September 2025, the SEC issued guidance permitting for the first time U.S. listed companies to include mandatory arbitration provisions in their bylaws or charter for federal securities law claims. S.B. 21 currently faces a constitutional challenge before the Delaware Supreme Court, and because Delaware law prohibits corporations from requiring investors to arbitrate securities claims, any Delaware corporation adopting mandatory arbitration will likely face legal challenges. While each of these developments have the potential to significantly change the legal landscape for Delaware and listed companies, their full impact remains uncertain and will likely gradually come into focus in 2026.