Coupang, Inc.
Case Overview
47 Days Left to Seek Lead Plaintiff
| Lead Plaintiff Deadline: | Lead Plaintiff Deadline: 02/17/2026 |
| Status: | Status: Investigating |
| Company Name: | Company Name: Coupang, Inc. |
| Court: | Court: Northern District of California |
| Case Number: | Case Number: 5:25cv10795 |
| Class Period: | Class Period: 08/06/2025 - 12/16/2025 |
| Ticker: | Ticker: CPNG |
| Related Attorneys: | Lead Attorneys: Thomas W. Elrod |
| Related Practices: | Related Practices: Securities |
The law firm of Kirby McInerney LLP announces that a class action lawsuit has been filed on behalf of investors who acquired Coupang, Inc. (“Coupang” or the “Company”) (NYSE:CPNG) securities during the period of August 6, 2025 through December 16, 2025, inclusive (“the Class Period”).
The lawsuit alleges that Coupang throughout the Class Period made false and/or misleading statements and/or failed to disclose that: (1) Coupang had inadequate cybersecurity protocols that allowed a former employee to access sensitive customer information for nearly six months without being detected; (2) this subjected Coupang to a materially heightened risk of regulatory and legal scrutiny; and (3) when defendants became aware that Coupang had been subjected to this data breach, they did not report it in a current report filing, to be filed with the U.S. Securities and Exchange Commission, in compliance with applicable reporting rules.
On November 29, 2025, Coupang reported that the personal information of 33.7 million customer accounts had been breached. On this news, the price of Coupang shares declined by $1.51 per share, or approximately 5.36%, from $28.16 per share on November 28, 2025 to close at $26.65 on December 1, 2025.
On December 10, 2025, The New York Times published an article entitled “C.E.O. Resigns in Fallout Over Massive South Korean Data Breach.” The article stated that the “head of the South Korean unit of the e-commerce company Coupang resigned on Wednesday, as the fallout from a data breach affecting nearly 34 million users of the online shopping site intensifies.” On this news, the price of Coupang shares declined by $0.87 per share, or approximately 3.23%, from $26.93 per share on December 9, 2025 to close at $26.06 on December 10, 2025.
On December 16, 2025, Coupang filed an 8-K acknowledging the breach and revealed that the Korean regulatory and law enforcement investigations uncovered that “a former employee may have obtained the name, phone number, delivery address, and email address associated with up to 33 million customer accounts, and certain order histories for a subset of the impacted accounts.” On this news, the price of Coupang shares declined by $ per share, or approximately %, from $23.19 per share on December 16, 2025 to close at $22.72 on December 17, 2025.
The lawsuit alleges that Coupang throughout the Class Period made false and/or misleading statements and/or failed to disclose that: (1) Coupang had inadequate cybersecurity protocols that allowed a former employee to access sensitive customer information for nearly six months without being detected; (2) this subjected Coupang to a materially heightened risk of regulatory and legal scrutiny; and (3) when defendants became aware that Coupang had been subjected to this data breach, they did not report it in a current report filing, to be filed with the U.S. Securities and Exchange Commission, in compliance with applicable reporting rules.
On November 29, 2025, Coupang reported that the personal information of 33.7 million customer accounts had been breached. On this news, the price of Coupang shares declined by $1.51 per share, or approximately 5.36%, from $28.16 per share on November 28, 2025 to close at $26.65 on December 1, 2025.
On December 10, 2025, The New York Times published an article entitled “C.E.O. Resigns in Fallout Over Massive South Korean Data Breach.” The article stated that the “head of the South Korean unit of the e-commerce company Coupang resigned on Wednesday, as the fallout from a data breach affecting nearly 34 million users of the online shopping site intensifies.” On this news, the price of Coupang shares declined by $0.87 per share, or approximately 3.23%, from $26.93 per share on December 9, 2025 to close at $26.06 on December 10, 2025.
On December 16, 2025, Coupang filed an 8-K acknowledging the breach and revealed that the Korean regulatory and law enforcement investigations uncovered that “a former employee may have obtained the name, phone number, delivery address, and email address associated with up to 33 million customer accounts, and certain order histories for a subset of the impacted accounts.” On this news, the price of Coupang shares declined by $ per share, or approximately %, from $23.19 per share on December 16, 2025 to close at $22.72 on December 17, 2025.