Global M&A surged in 2025, momentum seen into 2026

Wachtell, Lipton, Rosen & Katz partners review 2025 global M&A trends and outline expectations for dealmaking, regulation, financing and activism heading into 2026.

• M&A volumes surged in 2025 to $2.3 trillion US deal value (up 49% vs. 2024) and 63 global $10B+ megadeals, driven by large strategic combinations, record private equity activity (~$2T PE volume), bank consolidation, AI- and infrastructure-related transactions, and open debt markets supporting record leveraged buyouts and complex financings.
• The memo details sector hotspots (tech/AI, energy & infrastructure, banks, healthcare, media, oil & gas, crypto), regulatory shifts under the Trump administration (more traditional antitrust, SEC easing disclosures, CFIUS conditions), U.S. government equity investments (e.g., $8.9B for 9.9% of Intel, rare earths, chips), M&A-focused shareholder activism, spin-offs, CVRs, hostile bids, sovereign wealth fund participation, new HSR Act filing rules, and Delaware corporate law changes impacting future deals.