In re Avantor, Inc. Securities Litigation

Labaton Keller Sucharow serves as Co-Lead Counsel in a securities class action lawsuit against Avantor, Inc. (Avantor or the Company) and certain of its executives (collectively, Defendants).  

Avantor is a laboratory supply company based in Radnor, Pennsylvania.  Avantor was primarily a manufacturer of high-purity laboratory materials before it acquired laboratory supply distributor VWR Corporation (VWR) in 2017.

On November 25, 2025, Labaton Keller Sucharow filed a Securities Class Action Complaint (the Complaint) asserting claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and U.S. Securities and Exchange Commission Rule 10b-5 promulgated thereunder on behalf of all persons and entities that purchased or otherwise acquired Avantor common stock between March 5, 2024 and October 28, 2025, inclusive (the Class Period).  The Complaint expands upon an earlier-filed action accusing the Company and executives of downplaying the impact of competition on Avantor's business during the Class Period, and names additional individual defendants and adds allegations that Avantor’s investors were misled about the true state of company conditions and operations, including that Avantor faced supply chain failures resulting in customer attrition, and that Avantor materially overstated goodwill in connection with the Company’s acquisition of VWR.  

Specifically, throughout the Class Period, Defendants are accused of misleading investors by failing to disclose that (a) Avantor had severely underinvested in its supply chain infrastructure, inventory management systems, and customer service; (b) this lack of investment caused delayed and partial order fulfillment of critical lab products for key customers; (c) these issues resulted in customer attrition and loss of market share to competitors; (d) as a result of the foregoing, goodwill assigned to the VWR acquisition was materially overstated; and (e) Defendants’ positive statements about strategy, competitive positioning, inventory management, customer service, and business prospects were materially false, misleading, or lacked a reasonable basis.

On January 13, 2026, the court consolidated the actions and appointed MercLan S.A., MercLan Institutional Fund, Kempen International Funds, and Macomb County Employees’ Retirement System as Lead Plaintiffs and Labaton Keller Sucharow as Co-Lead Counsel.

The case is In re Avantor, Inc. Securities Litigation, No. 25-cv-6187 (E.D. Pa.).  Labaton Keller Sucharow represents Lead Plaintiff Macomb County Employees’ Retirement System.