Core Viewpoint - Rosen Law Firm is encouraging investors of Avantor, Inc. to secure legal counsel before the December 29, 2025 deadline for a securities class action related to the company's stock performance during the specified class period [1][2]. Group 1: Class Action Details - Investors who purchased Avantor common stock between March 5, 2024, and October 28, 2025, may be entitled to compensation without any out-of-pocket fees through a contingency fee arrangement [2]. - The lawsuit alleges that Avantor's competitive positioning was misrepresented, and that the company was negatively affected by increased competition, leading to materially false and misleading statements about its business and prospects [5]. Group 2: Legal Representation - Investors are advised to select qualified legal counsel with a proven track record in securities class actions, as many firms may not have the necessary experience or resources [4]. - Rosen Law Firm has a history of successful settlements in securities class actions, including the largest settlement against a Chinese company and significant recoveries for investors in recent years [4].