Q1 2026 HSR filings increased 14% over Q1 2025 HSR filings, with a steady overall increase in HSR filings in 2025 - White & Case Global Antitrust Merger StatPak (WAMS)

Despite the rollercoaster of HSR Rule changes in 2025 and Q1 2026, there has been a notable surge in HSR filing activity in the past 15 months. Drawing on White & Case’s Global Antitrust Merger StatPak (WAMS), the first real-time clearinghouse for global merger notification data, we are also seeing elevated merger control activity globally that parallels this uptick in US HSR Filings. Q4 2025 was the strongest quarter for HSR Filings since Q4 2022, with a 12% increase over Q4 2024 HSR Filings... By: White & Case LLP