PubMatic Investors Sue Over Securities Fraud Allegations

A class action lawsuit has been filed against PubMatic, Inc. (PUBM) investors who purchased securities between February 27, 2025, and August 11, 2025. The lawsuit alleges that the company made false and/or misleading statements about its business, operations, and prospects. Investors who suffered losses may submit a claim to potentially recover their losses. The lead plaintiff motion deadline is October 20, 2025.

A class action lawsuit has been filed against PubMatic, Inc. (PUBM) on behalf of investors who purchased securities between February 27, 2025, and August 11, 2025. The lawsuit alleges that the company made false and/or misleading statements about its business, operations, and prospects. Investors who suffered losses may submit a claim to potentially recover their losses. The lead plaintiff motion deadline is October 20, 2025.

The complaint, filed in the U.S. District Court for the Northern District of California, alleges that PubMatic failed to disclose material adverse facts about the company's business. Specifically, it claims that the company did not inform investors that a top demand-side platform (DSP) buyer was shifting a significant number of clients to a new platform, which evaluated inventory differently. This shift resulted in a reduction in ad spend and revenue from the top DSP buyer, causing the company's positive statements about its business to be misleading.

On August 11, 2025, after the market closed, PubMatic released its second quarter 2025 financial report. The report revealed that the company's outlook reflected a reduction in ad spend from one of its top DSP partners. The company's Chief Executive Officer, Rajeev Goel, acknowledged that a top DSP buyer had shifted a significant number of clients to a new platform, causing significant headwinds. This news led to a substantial drop in PubMatic's stock price, falling $2.23, or 21.1%, to close at $8.34 per share on August 12, 2025.

Investors who purchased or otherwise acquired PubMatic shares and suffered a loss are encouraged to contact Bragar Eagel & Squire, P.C., a nationally recognized stockholder rights law firm. The firm represents individual and institutional investors in commercial, securities, derivative, and other complex litigation. Investors have until October 20, 2025, to apply to the Court to be appointed as lead plaintiff in the lawsuit.

References:
[1] https://www.morningstar.com/news/globe-newswire/9516218/pubmatic-alert-bragar-eagel-squire-pc-announces-that-a-class-action-lawsuit-has-been-filed-against-pubmatic-inc-and-encourages-investors-to-contact-the-firm
[2] https://news.bloomberglaw.com/securities-law/pubmatic-investor-sues-over-ad-spending-hit-to-revenue-forecast