NEWMARKET CORP — All Filings
1,000 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
3
3/A
4
4/A
424B3
424B5
5
5/A
8-A12B
8-K
8-K/A
ARS
CERTNYS
CORRESP
DEF 14A
DEFA14A
EFFECT
FWP
PRE 14A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001937 | Mar 27, 2026 | — |
| ARS | ARS | 0001193125-26-102979 | Mar 12, 2026 | Dec 31, 2025 |
| DEFA14A | DEFA14A | 0001193125-26-102977 | Mar 12, 2026 | — |
| DEF 14A | DEF 14A | 0001193125-26-102973 | Mar 12, 2026 | Apr 23, 2026 |
| 8-K | 8-K | 0001193125-26-077261 | Feb 26, 2026 | — |
| 8-K | 8-K | 0001193125-26-077235 | Feb 26, 2026 | — |
| 4 | 4 | 0001193125-26-071771 | Feb 25, 2026 | Feb 24, 2026 |
| 3 | 3 | 0001193125-26-061528 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | 4 | 0001193125-26-061513 | Feb 20, 2026 | Feb 19, 2026 |
| 4 | 4 | 0001193125-26-061459 | Feb 20, 2026 | Feb 18, 2026 |
| 4 | 4 | 0001193125-26-061458 | Feb 20, 2026 | Feb 18, 2026 |
| 8-K | 8-K | 0001193125-26-057420 | Feb 18, 2026 | — |
| 10-K | FORM 10-K | 0001282637-26-000005 | Feb 12, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001282637-26-000003 | Feb 11, 2026 | — |
| 4 | 4 | 0001193125-26-042886 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | 4 | 0001193125-26-042885 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | 4 | 0001193125-26-042883 | Feb 9, 2026 | Feb 5, 2026 |
| 4 | 4 | 0001193125-26-042882 | Feb 9, 2026 | Feb 5, 2026 |
| SCHEDULE 13D/A | — | 0001193125-26-006618 | Jan 7, 2026 | — |
| 8-K | 8-K | 0001193125-25-312832 | Dec 9, 2025 | — |
| 4 | 4 | 0001193125-25-312814 | Dec 9, 2025 | Sep 18, 2025 |
| 4 | 4 | 0001193125-25-297729 | Nov 25, 2025 | Jun 27, 2025 |
| 8-K | 8-K | 0001193125-25-267201 | Nov 5, 2025 | Oct 31, 2025 |
| 10-Q | 10-Q | 0001282637-25-000024 | Oct 31, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001282637-25-000023 | Oct 30, 2025 | — |
| 8-K | 8-K | 0001193125-25-258809 | Oct 30, 2025 | — |
| 4 | 4 | 0000950170-25-113241 | Sep 5, 2025 | — |
| 4 | 4 | 0000950170-25-112851 | Sep 3, 2025 | Aug 25, 2025 |
| SCHEDULE 13G/A | — | 0001398344-25-015406 | Aug 14, 2025 | — |
| 8-K | 8-K | 0001193125-25-175561 | Aug 7, 2025 | — |
| 10-Q | 10-Q | 0001282637-25-000016 | Jul 31, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0001282637-25-000015 | Jul 30, 2025 | — |
| SCHEDULE 13G/A | — | 0000932471-25-000974 | Jul 29, 2025 | — |
| 4 | 4 | 0000950170-25-092290 | Jul 1, 2025 | — |
| 4 | 4 | 0000950170-25-092288 | Jul 1, 2025 | — |
| 4 | 4 | 0000950170-25-092287 | Jul 1, 2025 | — |
| 4 | 4 | 0000950170-25-092286 | Jul 1, 2025 | — |
| 4 | 4 | 0000950170-25-092285 | Jul 1, 2025 | — |
| 11-K | FORM 11-K | 0001282637-25-000012 | May 22, 2025 | Dec 31, 2024 |
| 4 | 4 | 0000950170-25-075818 | May 21, 2025 | May 20, 2025 |
| 4 | 4 | 0000950170-25-071534 | May 14, 2025 | May 12, 2025 |
| 144 | — | 0000950170-25-071371 | May 14, 2025 | — |
| 8-K | 8-K | 0001193125-25-093701 | Apr 24, 2025 | — |
| 4 | 4 | 0000950170-25-058160 | Apr 24, 2025 | Apr 22, 2025 |
| 4 | 4 | 0000950170-25-058135 | Apr 24, 2025 | Apr 22, 2025 |
| 10-Q | 10-Q | 0001282637-25-000010 | Apr 24, 2025 | Mar 31, 2025 |
| 8-K | 8-K | 0001282637-25-000009 | Apr 23, 2025 | — |
| ARS | ARS | 0001193125-25-052433 | Mar 12, 2025 | Dec 31, 2024 |
| DEFA14A | DEFA14A | 0001193125-25-052429 | Mar 12, 2025 | — |
| DEF 14A | DEF 14A | 0001193125-25-052416 | Mar 12, 2025 | Apr 24, 2025 |