Avantor, Inc. SEC filings AVTR
Avantor, Inc. has 787 filings in SEC EDGAR's recent list, going back to Dec 28, 2017. Its latest annual report, Form ARS, was filed on Mar 27, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 28, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 3, 2026 (officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 3, 2026 | Oct 30, 2026 |
| 4 | Insider transaction | Nov 3, 2026 | Oct 30, 2026 |
| 8-K |
Current report
Officer or director change
|
Nov 3, 2026 | Oct 30, 2026 |
| 10-Q | Quarterly report | Oct 28, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2026 | Oct 28, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 21, 2026 |
| 3 | Initial insider ownership | Sep 23, 2026 | Sep 21, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 21, 2026 | Sep 17, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 21, 2026 | Sep 17, 2026 |
| 8-K/A |
Amended current report
Officer or director change
|
Aug 27, 2026 | Apr 17, 2026 |
| 4 | Insider transaction | Aug 20, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 14, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Jul 31, 2026 |
| 10-Q | Quarterly report | Jul 29, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 29, 2026 | Jul 29, 2026 |
| 4 | Insider transaction | Jul 27, 2026 | Jul 24, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 17, 2026 | Jul 14, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 21, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2026 | — |
| 8-K |
Current report
Shareholder vote results
|
May 12, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 11, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 11, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 11, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 11, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 11, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 11, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 11, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 11, 2026 | May 7, 2026 |
| UPLOAD | Letter from the SEC | May 6, 2026 | — |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 3 | Initial insider ownership | May 5, 2026 | May 1, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 10-Q | Quarterly report | Apr 29, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 29, 2026 | Apr 29, 2026 |
| CORRESP | Letter to the SEC | Apr 27, 2026 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 23, 2026 | Apr 17, 2026 |
| UPLOAD | Letter from the SEC | Apr 13, 2026 | — |
| 4 | Insider transaction | Apr 6, 2026 | Apr 3, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 1, 2026 | Mar 26, 2026 |
| ARS | Annual report to shareholders | Mar 27, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 27, 2026 | — |
| DEF 14A | Proxy statement | Mar 27, 2026 | May 7, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 11, 2026 | Mar 10, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 25, 2026 | Dec 17, 2025 |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 25, 2026 | Dec 4, 2025 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 23, 2026 | Feb 19, 2026 |
| 4 | Insider transaction | Feb 12, 2026 | Feb 12, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 11, 2026 | Feb 11, 2026 |
| 10-K | Annual report | Feb 11, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 2, 2026 |
| 3 | Initial insider ownership | Jan 12, 2026 | Jan 2, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 18, 2025 | Dec 17, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 5, 2025 |
| 3 | Initial insider ownership | Dec 9, 2025 | Dec 5, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 4, 2025 | Dec 4, 2025 |
| 4 | Insider transaction | Nov 17, 2025 | Nov 17, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 4 | Insider transaction | Nov 12, 2025 | Nov 10, 2025 |
| 3 | Initial insider ownership | Nov 12, 2025 | Nov 10, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 10, 2025 | Oct 26, 2025 |
| 144 | Notice of proposed sale | Nov 6, 2025 | — |
| 4 | Insider transaction | Oct 31, 2025 | Oct 30, 2025 |
| 10-Q | Quarterly report | Oct 29, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2025 | Oct 29, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 17, 2025 | — |
| 8-K |
Current report
Material agreement, Agreement ended, New debt, Other events
|
Oct 14, 2025 | Oct 9, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 14, 2025 | Oct 10, 2025 |
| 4 | Insider transaction | Oct 7, 2025 | Oct 3, 2025 |
| 3 | Initial insider ownership | Oct 7, 2025 | Oct 3, 2025 |
| 4 | Insider transaction | Oct 3, 2025 | Oct 2, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 3, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Aug 22, 2025 | Aug 21, 2025 |
| 4 | Insider transaction | Aug 21, 2025 | Aug 18, 2025 |
| 3 | Initial insider ownership | Aug 21, 2025 | Aug 18, 2025 |
| 4 | Insider transaction | Aug 15, 2025 | Aug 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Aug 13, 2025 | Aug 7, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2025 | — |
| 4 | Insider transaction | Aug 12, 2025 | Aug 8, 2025 |
| 4 | Insider transaction | Aug 6, 2025 | Aug 5, 2025 |
| 144 | Notice of proposed sale | Aug 5, 2025 | — |
| 4 | Insider transaction | Aug 4, 2025 | Jul 31, 2025 |
| 10-Q | Quarterly report | Aug 1, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2025 | Aug 1, 2025 |
| 4 | Insider transaction | Jul 25, 2025 | Jul 24, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jul 21, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Jun 24, 2025 | Jun 21, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2025 | — |
| 4 | Insider transaction | May 27, 2025 | May 23, 2025 |
| 4 | Insider transaction | May 22, 2025 | May 22, 2025 |
| 4 | Insider transaction | May 21, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 9, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 9, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 9, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 9, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 9, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 9, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 9, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 12, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 9, 2025 | May 7, 2025 |
| 4 | Insider transaction | Apr 29, 2025 | Apr 29, 2025 |
| 4 | Insider transaction | Apr 29, 2025 | Apr 28, 2025 |
| 4 | Insider transaction | Apr 29, 2025 | Apr 28, 2025 |
| 4 | Insider transaction | Apr 29, 2025 | Apr 28, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 28, 2025 | Apr 24, 2025 |
| 10-Q | Quarterly report | Apr 25, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 25, 2025 | Apr 25, 2025 |
| 3 | Initial insider ownership | Apr 8, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 5, 2025 |
| ARS | Annual report to shareholders | Mar 28, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 28, 2025 | — |
| DEF 14A | Proxy statement | Mar 28, 2025 | May 8, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 26, 2025 |
| 4 | Insider transaction | Feb 28, 2025 | Feb 26, 2025 |
| 144 | Notice of proposed sale | Feb 27, 2025 | — |
| 144 | Notice of proposed sale | Feb 27, 2025 | — |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 144 | Notice of proposed sale | Feb 26, 2025 | — |
| 144 | Notice of proposed sale | Feb 26, 2025 | — |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 23, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2025 | — |
| 10-K | Annual report | Feb 7, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2025 | Feb 7, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 8, 2025 | Jan 6, 2025 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| 3 | Initial insider ownership | Nov 6, 2024 | Nov 4, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 6, 2024 | Nov 4, 2024 |
| 10-Q | Quarterly report | Oct 25, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 25, 2024 | Oct 25, 2024 |
| 4 | Insider transaction | Oct 4, 2024 | Oct 2, 2024 |
| 4 | Insider transaction | Sep 6, 2024 | Sep 5, 2024 |
| 144 | Notice of proposed sale | Sep 5, 2024 | — |
| 144 | Notice of proposed sale | Aug 26, 2024 | — |
| 4 | Insider transaction | Aug 16, 2024 | Aug 14, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 7, 2024 | — |
| 4 | Insider transaction | Aug 1, 2024 | Jul 31, 2024 |
| 4 | Insider transaction | Aug 1, 2024 | Jul 30, 2024 |
| 144 | Notice of proposed sale | Jul 31, 2024 | — |
| 144 | Notice of proposed sale | Jul 30, 2024 | — |
| 4 | Insider transaction | Jul 26, 2024 | Jul 24, 2024 |
| 144 | Notice of proposed sale | Jul 26, 2024 | — |
| 10-Q | Quarterly report | Jul 26, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 26, 2024 | Jul 26, 2024 |
| 4 | Insider transaction | Jul 22, 2024 | Jul 18, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 10, 2024 | — |
| 8-K |
Current report
Officer or director change
|
Jul 3, 2024 | Jun 27, 2024 |
| 4 | Insider transaction | Jun 25, 2024 | Jun 21, 2024 |
| 3 | Initial insider ownership | Jun 25, 2024 | Jun 21, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jun 21, 2024 | Jun 21, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2024 | — |
| 4 | Insider transaction | May 13, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 13, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 13, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 13, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 13, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 13, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 13, 2024 | May 9, 2024 |
| 4 | Insider transaction | May 13, 2024 | May 9, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 10, 2024 | May 9, 2024 |
| 10-Q | Quarterly report | Apr 26, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 26, 2024 | Apr 26, 2024 |
| 4 | Insider transaction | Apr 18, 2024 | Apr 16, 2024 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Laboratory Analytical Instruments (SIC 3826)
- Listed as
- AVTR (NYSE)
- Fiscal year ends
- December 31
- Headquarters
- Radnor, PA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1722482
- Former names
- Vail Holdco Corp (until Dec 28, 2017)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.