Avantor Reaffirms Commitment to Shareholder Value

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Avantor Reaffirms Commitment to Shareholder Value Amid Engine Capital Scrutiny; Life Sciences Veteran Emmanuel Ligner Set to Take the Helm

RADNOR, Pa., Aug. 11, 2025 – Avantor, Inc. (NYSE: AVTR), a key player in the life sciences and advanced technologies sectors, has issued a response to Engine Capital’s recent letter, signaling a continued focus on driving growth and maximizing shareholder returns.

Avantor’s Board of Directors asserts it is proactively managing the company’s strategy with the goal of consistently enhancing shareholder value. The board emphasizes regular reviews of strategic priorities, concentrating on stimulating growth, improving margins, and generating sustainable returns for investors.

The company highlights its substantial strengths, including a broad product portfolio addressing research and production needs, a robust global distribution network, and established, long-term relationships within the life sciences industry. This positions Avantor favorably in a dynamic market.

The Board underlines decisive actions taken over the past 18 months to boost growth and profitability in both the Laboratory Solutions and Bioscience Production divisions. These include the appointment of a new CEO and a new Lab Solutions leader, the successful implementation of a $400 million cost transformation program, enhanced business transparency through resegmentation, and ongoing efforts to optimize the company’s portfolio.

Furthermore, Avantor notes significant progress in deleveraging, having reduced debt by nearly $1.5 billion in the same 18-month period, demonstrating a commitment to a focused capital allocation strategy.

Looking ahead, Avantor expresses confidence in accelerating its value creation initiatives under the leadership of incoming CEO Emmanuel Ligner, a seasoned executive with a track record in the life sciences arena. Ligner will officially begin his tenure on August 18, 2025. The company welcomes continued dialogue with all shareholders, including Engine Capital.

Goldman Sachs & Co. LLC and Gordon Dyal & Co. are advising Avantor financially, while Paul, Weiss, Rifkind, Wharton & Garrison LLP is serving as legal counsel. Joele Frank, Wilkinson Brimmer Katcher provides strategic communications advice.

About Avantor

Avantor® is a global provider of mission-critical products and services to customers in the life sciences and advanced technology industries. The company’s portfolio is used across various stages of research, development, and production at over 300,000 customer locations in 180 countries. For more information, visit avantorsciences.com.

Forward-Looking and Cautionary Statements
This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, and are subject to the safe harbor created thereby under the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact included in this press release are forward-looking statements. Forward-looking statements discuss our current expectations and projections relating to our financial condition, results of operations, plans, including our cost transformation initiative, objectives, future performance and business. These statements may be preceded by, followed by or include the words “aim,” “anticipate,” “assumption,” “believe,” “continue,” “estimate,” “expect,” “forecast,” “goal,” “guidance,” “intend,” “likely,” “long-term,” “near-term,” “objective,” “opportunity,” “outlook,” “plan,” “potential,” “project,” “projection,” “prospects,” “seek,” “target,” “trend,” “can,” “could,” “may,” “should,” “would,” “will,” the negatives thereof and other words and terms of similar meaning.

Forward-looking statements are inherently subject to risks, uncertainties and assumptions; they are not guarantees of performance. You should not place undue reliance on these statements. We have based these forward-looking statements on our current expectations and projections about future events. Although we believe that our assumptions made in connection with the forward-looking statements are reasonable, we cannot assure you that the assumptions and expectations will prove to be correct. Factors that could contribute to these risks, uncertainties and assumptions include, but are not limited to, the factors described in “Risk Factors” in our most recent Annual Report on Form 10-K, and subsequent quarterly reports on Form 10-Q, as such risk factors may be updated from time to time in our periodic filings with the SEC.

All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the foregoing cautionary statements. In addition, all forward-looking statements speak only as of the date of this press release. We undertake no obligations to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise other than as required under the federal securities laws.

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