NEW YORK, Nov. 08, 2025 (GLOBE NEWSWIRE) -- WHY: Rosen Law Firm, a global investor rights law firm, announces the filing of a class action lawsuit on behalf of purchasers of common stock of Avantor, Inc. (NYSE: AVTR) between March 5, 2024 and October 28, 2025, both dates inclusive (the “Class Period”). A class action lawsuit has already been filed. If you wish to serve as lead plaintiff, you must move the Court no later than December 29, 2025. SO WHAT: If you purchased Avantor common stock during the Class ...