Avantor, Inc. — All Filings
747 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
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144
15-12B
25-NSE
3
3/A
4
4/A
424B4
424B5
424B7
5
8-A12B
8-K
8-K/A
ARS
CERT
CORRESP
D
DEF 14A
DEFA14A
DRS
EFFECT
FWP
POSASR
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S-1
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S-3ASR
S-8
SC 13G
SC 13G/A
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| ARS | ANNUAL REPORT TO SECURITY HOLDERS | 0001308179-26-000162 | Mar 27, 2026 | Dec 31, 2025 |
| DEFA14A | DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS | 0001628280-26-021573 | Mar 27, 2026 | — |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0001628280-26-021572 | Mar 27, 2026 | May 7, 2026 |
| SCHEDULE 13G/A | — | 0000102909-26-000784 | Mar 26, 2026 | — |
| 4 | FORM 4 | 0001628280-26-016904 | Mar 11, 2026 | Mar 10, 2026 |
| 4 | FORM 4 | 0001628280-26-011812 | Feb 25, 2026 | Feb 23, 2026 |
| 4 | FORM 4 | 0001628280-26-011811 | Feb 25, 2026 | Feb 23, 2026 |
| 4 | FORM 4 | 0001628280-26-011810 | Feb 25, 2026 | Feb 23, 2026 |
| 4 | FORM 4 | 0001628280-26-011809 | Feb 25, 2026 | Feb 23, 2026 |
| 4 | FORM 4 | 0001628280-26-011808 | Feb 25, 2026 | Feb 23, 2026 |
| 8-K/A | 8-K/A | 0001628280-26-011727 | Feb 25, 2026 | Dec 17, 2025 |
| 8-K/A | 8-K/A | 0001628280-26-011722 | Feb 25, 2026 | Dec 4, 2025 |
| 4 | FORM 4 | 0001628280-26-010833 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001628280-26-010832 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001628280-26-010831 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001628280-26-010830 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001628280-26-010829 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001628280-26-010828 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001628280-26-010827 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001628280-26-010826 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001628280-26-010825 | Feb 23, 2026 | Feb 19, 2026 |
| 4 | FORM 4 | 0001628280-26-007802 | Feb 12, 2026 | — |
| 8-K | 8-K | 0001628280-26-007120 | Feb 11, 2026 | — |
| 10-K | 10-K | 0001628280-26-007118 | Feb 11, 2026 | Dec 31, 2025 |
| 4 | FORM 4 | 0001628280-26-001871 | Jan 12, 2026 | Jan 2, 2026 |
| 3 | FORM 3 | 0001628280-26-001870 | Jan 12, 2026 | Jan 2, 2026 |
| 8-K | 8-K | 0001628280-25-057805 | Dec 18, 2025 | Dec 17, 2025 |
| 4 | FORM 4 | 0001628280-25-056173 | Dec 9, 2025 | Dec 5, 2025 |
| 3 | FORM 3 | 0001628280-25-056167 | Dec 9, 2025 | Dec 5, 2025 |
| 8-K | 8-K | 0001722482-25-000221 | Dec 4, 2025 | — |
| 4 | FORM 4 | 0002082879-25-000003 | Nov 17, 2025 | — |
| SCHEDULE 13G/A | — | 0001897612-25-000544 | Nov 14, 2025 | — |
| 4 | FORM 4 | 0001628280-25-051686 | Nov 12, 2025 | Nov 10, 2025 |
| 3 | FORM 3 | 0001628280-25-051681 | Nov 12, 2025 | Nov 10, 2025 |
| 8-K | 8-K | 0001628280-25-051159 | Nov 10, 2025 | Oct 26, 2025 |
| 144 | — | 0001628280-25-050225 | Nov 6, 2025 | — |
| 4 | FORM 4 | 0001628280-25-047702 | Oct 31, 2025 | Oct 30, 2025 |
| 10-Q | 10-Q | 0001628280-25-046936 | Oct 29, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001628280-25-046902 | Oct 29, 2025 | — |
| SCHEDULE 13G/A | — | 0002012383-25-002504 | Oct 17, 2025 | — |
| 8-K | 8-K | 0001628280-25-045006 | Oct 14, 2025 | Oct 9, 2025 |
| 8-K | 8-K | 0001628280-25-044871 | Oct 14, 2025 | Oct 10, 2025 |
| 4 | FORM 4 | 0001722482-25-000218 | Oct 7, 2025 | Oct 3, 2025 |
| 3 | FORM 3 | 0001722482-25-000216 | Oct 7, 2025 | Oct 3, 2025 |
| 4 | FORM 4 | 0001628280-25-044081 | Oct 3, 2025 | Oct 2, 2025 |
| 8-K | 8-K | 0001628280-25-043910 | Oct 3, 2025 | Oct 1, 2025 |
| 4 | FORM 4 | 0001722482-25-000209 | Aug 22, 2025 | Aug 21, 2025 |
| 4 | FORM 4 | 0001722482-25-000207 | Aug 21, 2025 | Aug 18, 2025 |
| 3 | FORM 3 | 0001722482-25-000206 | Aug 21, 2025 | Aug 18, 2025 |
| 4 | FORM 4 | 0001722482-25-000202 | Aug 15, 2025 | Aug 14, 2025 |