SCHEDULE: BlackRock Maintains 8.7% Stake in Avantor

BlackRock, Inc. has filed an Amendment No. 5 to Schedule 13G, disclosing a continued beneficial ownership of 8.7% of Avantor, Inc.'s common stock as of September 30, 2025.

Summary

• BlackRock, Inc. reported beneficial ownership of 59,049,575 shares of Avantor, Inc. common stock.
• This represents 8.7% of Avantor, Inc.'s outstanding common stock.
• BlackRock holds sole voting power over 56,188,076 shares and sole dispositive power over 59,049,575 shares.
• The securities were acquired and are held in the ordinary course of business, not for the purpose of changing or influencing control of Avantor, Inc.
• The filing is an Amendment No. 5 to a Schedule 13G, filed under Rule 13d-1(b).
• BlackRock Fund Advisors, a subsidiary of BlackRock, Inc., beneficially owns 5% or greater of the outstanding shares.

Sentiment

Score: 7

Explanation: The filing is a routine disclosure of a significant, passive institutional ownership stake. It contains no new operational or financial information about Avantor, Inc., nor does it signal any change in BlackRock, Inc.'s investment intent. The continued holding by a major institutional investor is generally viewed as a neutral to slightly positive indicator of stability.

Positives

• BlackRock, a major institutional investor, maintains a significant 8.7% stake in Avantor, indicating continued confidence in the company.
• The investment is stated to be for ordinary course of business, not for control, suggesting a stable, passive long-term holding.

Future Outlook

This filing does not contain any forward-looking statements or guidance regarding Avantor, Inc.'s future performance or BlackRock, Inc.'s investment strategy beyond the current ownership disclosure.

Management Comments

• The securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities.

Industry Context

This filing reflects a routine disclosure by BlackRock, Inc., one of the world's largest asset managers, regarding its passive investment in Avantor, Inc., a global provider of products and services to the life sciences and advanced technologies industries. Such significant institutional holdings are common for publicly traded companies and indicate a major investor's continued presence in the stock.

Corporate Governance

Stakeholder Impact

• Shareholders: Provides transparency regarding a significant institutional holder's stake, confirming BlackRock's continued passive investment in Avantor.

Key Dates

Recommendation

This Schedule 13G filing is a routine disclosure by BlackRock, Inc. confirming its significant, passive ownership stake in Avantor, Inc. It does not provide any new material financial or operational information about Avantor that would alter an investment thesis. The continued holding by a major institutional investor like BlackRock, without any indication of a change in investment intent or strategy, supports a 'hold' recommendation for investors who already have a position in Avantor, as there are no new catalysts for a 'buy' or 'sell' decision based solely on this filing.

Keywords

Avantor, BlackRock, Schedule 13G, beneficial ownership, common stock, institutional investor, passive investment, equity stake, SEC filing