Coupang Hit With New Investor Suits as Class Period Expands in Data-Breach Case

Overview

• Saxena White filed a securities class action in the Western District of Washington that extends the proposed class period to May 7, 2025, broadening an earlier Northern District of California case that began on August 6, 2025.
• Multiple firms, including Berger Montague, Gainey McKenna & Egleston, Rosen Law Firm, Levi & Korsinsky, and Bernstein Liebhard, have filed or announced actions and are soliciting investors for the competing lead-plaintiff process.
• The complaints allege Coupang lacked adequate cybersecurity controls, enabling a former employee to access sensitive customer data for nearly six months and leading to regulatory and legal exposure.
• Coupang has disclosed unauthorized access affecting roughly 33–33.7 million customer accounts in Korea, said it became aware on November 18, 2025, and reported that the data may include names, phone numbers, delivery addresses, and email addresses.
• Corporate fallout includes the December 10 resignation of CEO Park Dae-joon, and investors are being advised that motions for lead-plaintiff status must be filed by February 17, 2026 in the pending federal cases.