Newmarket Corp SEC filings NEU
Newmarket Corp has 1,000 filings in SEC EDGAR's recent list, going back to Aug 2, 2006. Its latest annual report, Form ARS, was filed on Mar 12, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 29, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 29, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| S-3ASR | Automatic shelf registration | Feb 27, 2024 | — |
| S-8 | Employee stock plan registration | Jun 20, 2023 | — |
| 424B5 | Prospectus supplement | Mar 5, 2021 | — |
| FWP | Free writing prospectus | Mar 4, 2021 | — |
| 424B5 | Prospectus supplement | Mar 4, 2021 | — |
| S-3ASR | Automatic shelf registration | Mar 2, 2021 | — |
| S-8 | Employee stock plan registration | Jun 26, 2014 | — |
| 424B3 | Prospectus | Mar 22, 2013 | — |
| S-4 | Registration for a merger or exchange | Mar 8, 2013 | — |
| S-4/A | Newmarket corporation | Apr 6, 2007 | — |
| S-4 | Registration for a merger or exchange | Mar 5, 2007 | — |
Showing 11 filings. 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
- Industrial Organic Chemicals (SIC 2860)
- Listed as
- NEU (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- VA
- Headquarters
- Richmond, VA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1282637
Other Industrial Organic Chemicals companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.