Labaton Keller Sucharow LLP (“Labaton”) has filed a securities class action lawsuit (the “Action”) on behalf of its client the City of Pontiac Reestablished General Employees Retirement System (“Pontiac RGERS”) against Avantor, Inc. (“Avantor” or the “Company”) (NYSE: AVTR) and certain of its executives (collectively, “Defendants”). The Action, which is captioned City of Pontiac Reestablished General Employees Retirement System v. Avantor, Inc., No. 25-cv-06686 (E.D. Pa.), asserts 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 is related to a previously filed action against Avantor captioned Building Trades Pension Fund of Western Pennsylvania v. Avantor, Inc., No. 25-cv-06187 (E.D. Pa.) (the “Initial Action”). The Initial Action was filed on October 30, 2025 on behalf of all persons and entities who purchased or otherwise acquired Avantor common stock during the Class Period. The Complaint expands upon the Initial Action by naming Jonathan Peacock, the Chairman of Avantor’s Board of Directors, and Steven Eck, Avantor’s Chief Accounting Officer, as Defendants, and by adding allegations that Defendants fraudulently misled Avantor’s investors about supply chain failures resulting in customer attrition and materially overstated goodwill in connection with its acquisition of VWR Corporation (“VWR”). Pursuant to the notice published on October 30, 2025 in connection with the filing of the Initial Action, investors wishing to serve as Lead Plaintiff in the Initial Action pending against Defendants are required to file a motion for appointment as Lead Plaintiff by no later than December 29, 2025, as required by the Private Securities Litigation Reform Act of 1995.

Avantor is a laboratory supply company based in Radnor, Pennsylvania. Avantor’s “transformational” acquisition of VWR in 2017 turned the Company into a global distribution platform serving hundreds of thousands of customers worldwide with millions of products. Avantor tried to manage its complex supply chain through a set of proprietary operating practices and procedures called the Avantor Business System (“ABS”).

The Action alleges that, throughout the Class Period, Defendants misled 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 the ABS strategy, competitive positioning, inventory management, customer service, and business prospects were materially false, misleading, or lacked a reasonable basis.

Investors began to learn the truth about Avantor’s supply chain failures and customer defections through a series of disclosures culminating on October 29, 2025. On that date, Avantor reported a $712 million net loss for the third quarter of 2025. Avantor also disclosed that it had faced a decline in organic revenue primarily related to “operational headwinds that are impacting our throughput, including raw material availability and equipment uptime.” The Company admitted that inventory challenges were caused by a need to improve data accuracy, fulfillment speed, on-time performance, and targeted plant upgrades to address reliability at aging sites. The Company further reported a goodwill impairment charge of $785 million in connection with its Lab Solutions segment, which was due in part to the loss of several large accounts to a major competitor.

If you purchased or acquired Avantor common stock during the Class Period and were damaged thereby, you are a member of the “Class” and may be able to seek appointment as Lead Plaintiff. Lead Plaintiff motion papers must be filed no later than December 29, 2025. The Lead Plaintiff is a court-appointed representative for absent members of the Class. You do not need to seek appointment as Lead Plaintiff to share in any Class recovery in this action. If you are a Class member and there is a recovery for the Class, you can share in that recovery as an absent Class member. You may retain counsel of your choice to represent you in this action.

If you would like to consider serving as Lead Plaintiff or have any questions about this lawsuit, you may contact Connor C. Boehme, Esq. of Labaton at +1 (212) 907-0780, or via email at cboehme@labaton.com. You can view a copy of the Complaint online here.

Pontiac RGERS is represented by Labaton, which represents many of the largest pension funds in the United States and internationally with combined assets under management of more than $4.5 trillion. Labaton’s litigation reputation is built on its half-century of securities litigation experience, more than ninety full-time attorneys, and in-house team of investigators, financial analysts, and forensic accountants. Labaton has been recognized for its excellence by the courts and peers, and it is consistently ranked in leading industry publications. Offices are located in New York, Delaware, London, and Washington, D.C. More information about Labaton is available at labaton.com.

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