DV DEADLINE NOTICE: ROSEN, LEADING INVESTOR COUNSEL, Encourages DoubleVerify Holdings, Inc. Investors to Secure Counsel Before Important July 21 Deadline in Securities Class Action – DV

Core Viewpoint - Rosen Law Firm is reminding investors who purchased DoubleVerify Holdings, Inc. common stock during the specified Class Period of the upcoming lead plaintiff deadline on July 21, 2025 [1] Group 1: Class Action Details - Investors who purchased DoubleVerify common stock between November 10, 2023, and February 27, 2025, may be entitled to compensation without any out-of-pocket fees through a contingency fee arrangement [2] - A class action lawsuit has already been filed, and interested parties must move the Court to serve as lead plaintiff by July 21, 2025 [3] - Investors are encouraged to select qualified legal counsel with a successful track record in securities class actions [4] Group 2: Allegations Against DoubleVerify - The lawsuit alleges that DoubleVerify made false and misleading statements regarding its business operations, including the shift of customer ad spending to closed platforms where its capabilities were limited [5] - It is claimed that DoubleVerify's high-margin Activation Services faced significant challenges in monetization due to the high costs and time required for technology development on closed platforms [5] - The lawsuit also states that DoubleVerify systematically overbilled customers for ad impressions served to declared bots, and its risk disclosures were materially misleading [5]