Quick Takeaways
- BlackRock, Inc. filed SCHEDULE 13G/A for Avantor, Inc. Common Stock (AVTR).
- Disclosed ownership: 8.7%.
- Date of event: 30 Sep 2025.
BlackRock, Inc. - 30 Sep 2025 SCHEDULE 13G/A Report for Avantor, Inc. Common Stock (AVTR)
- Filing Manager
- BlackRock, Inc.
- Reporting Manager
- BlackRock, Inc.
- Security
- Avantor, Inc. Common Stock
- Symbol
- AVTR
- Shares outstanding
- 678,730,747 shares
- Disclosed Ownership
- 59,049,575 shares
- Ownership
- 8.7%
- Form type
- SCHEDULE 13G/A
- Filing time
- 17 Oct 2025, 18:05:59 UTC
- Date of event
- 30 Sep 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"BlackRock, Inc. disclosed 8.7% ownership in Avantor, Inc. Common Stock (AVTR) on 30 Sep 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 17 Oct 2025, 18:05.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 8.7% | 59,049,575 | 56,188,076 | 0 | Spencer Fleming | Managing Director |