Overview

• Bronstein, Gewirtz & Grossman, Johnson Fistel, and The Gross Law Firm issued notices stating a class action has been filed against PubMatic and certain officers.
• The complaint alleges executives failed to disclose that a top demand-side platform migrated many clients to a new system that evaluated inventory differently.
• Plaintiffs claim the migration cut ad spend routed through PubMatic, reducing the company’s revenue during the period at issue.
• The proposed class covers investors who purchased PubMatic securities from February 27, 2025 through August 11, 2025, inclusive.
• The notices emphasize an October 20, 2025 deadline to seek lead-plaintiff appointment, and they report no company response in the materials cited.