CPNG ALERT: Kirby McInerney LLP Announces the Filing of a Securities Class Action on Behalf of Coupang, Inc. Investors

NEW YORK–(BUSINESS WIRE)–$CPNG #classactionlawsuit–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”).

If you suffered a loss on your Coupang investments, you have until February, 17, 2026 to request lead plaintiff appointment. For more information:

[CONTACT THE FIRM IF YOU SUFFERED A LOSS]

What Is This Lawsuit About? 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.

[LEARN MORE ABOUT THE LAWSUIT]

The Lead Plaintiff Appointment Process. The federal securities laws permit any investor who acquired eligible securities during the class period to seek appointment as lead plaintiff in a class action lawsuit. Courts typically appoint the investor(s) with the largest financial loss in the case and the ability to represent the class rather than investors with simply the largest investment portfolio. Courts regularly appoint individual investors, whether acting alone or as a group, as lead plaintiffs. The rights of any investor who bought shares during the class period are generally already protected. However, lead plaintiffs have the power to influence case strategy and have a say in settlement decisions, as well as decisions concerning allocation of settlement funds among class members.

[LEARN MORE ABOUT THE LEAD PLAINTIFF PROCESS]

What Should I Do? If you purchased or otherwise acquired Coupang securities, have information, or would like to learn more about this investigation, please contact Lauren Molinaro of Kirby McInerney LLP by email at investigations@kmllp.com, or fill out the contact form below, to discuss your rights or interests with respect to these matters at no cost.

Kirby McInerney LLP is a New York-based plaintiffs’ law firm concentrating in securities, antitrust, whistleblower, and consumer litigation. The firm’s efforts on behalf of shareholders in securities litigation have resulted in recoveries totaling billions of dollars. Additional information about the firm can be found at Kirby McInerney LLP’s website.

This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and ethical rules.

Contacts

Kirby McInerney LLP

Lauren Molinaro, Esq.

212-699-1171

https://www.kmllp.com
https://securitiesleadplaintiff.com/
investigations@kmllp.com