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PubMatic, Inc.

Corporate Governance / Derivative

  • Date:
  • 8/13/2025
  • Company Name:
  • PubMatic, Inc.
  • Stock Symbol:
  • PUBM
  • Status:
  • Investigating

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Bragar Eagel & Squire, P.C., a nationally recognized shareholder rights law firm, is investigating potential claims against PubMatic, Inc. (NASDAQ:PUBM) on behalf of long-term stockholders following a class action complaint that was filed against PubMatic on August 20, 2025 with a Class Period from February 27, 2025 to August 11, 2025. Our investigation concerns whether the board of directors of PubMatic have breached their fiduciary duties to the company.

The complaint filed in this class action alleges that throughout the Class Period, Defendants made materially false and/or misleading statements, as well as failed to disclose material adverse facts about the Company’s business, operations, and prospects. Specifically, Defendants failed to disclose to investors: (1) that a top DSP buyer was shifting a significant number of clients to a new platform which evaluated inventory differently; (2) that, as a result, PubMatic was seeing a reduction in ad spend and revenue from this top DSP buyer; and (3) that, as a result of the foregoing, Defendants’ positive statements about the Company’s business, operations, and prospects were materially misleading and/or lacked a reasonable basis.

On August 11, 2025, after market hours, PubMatic released its second quarter 2025 financial report and disclosed that “beginning in July, [it had seen] a headwind emerge from a top DSP buyer, which recently shifted a significant number of clients to a new platform that evaluates inventory differently” and that it expected revenue to decline significantly in the third quarter due to “a reduction in ad spend from one of [its] top DSP partners.”

On this news, the price of PubMatic shares declined by $2.23 per share, or approximately 21.1%, from $10.57 per share on August 11, 2025 to close at $8.34 on August 12, 2025.

If you purchased or otherwise acquired PubMatic shares and suffered a loss, are a long-term stockholder, have information, would like to learn more about these claims, or have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Brandon Walker or Marion Passmore by email at investigations@bespc.com, by telephone at (212) 355-4648, or by filling out the form below.  There is no cost or obligation to you.
Contact Instructions
Please contact Brandon Walker or Marion Passmore by email at investigations@bespc.com with any questions regarding the case.
The individual or institution below (“Plaintiff”) has reviewed and agrees to the Bragar Eagel & Squire, P.C. (“BESPC”) retainer agreement and authorizes BESPC to prosecute an action on Plaintiff’s behalf under the federal securities laws or applicable state laws to recover damages on behalf of investors in PubMatic. BESPC will prosecute the action on a full contingency basis and will forward all costs and expenses.
 

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