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 |
|---|---|---|---|
| DEFA14A | Additional proxy material | Mar 12, 2026 | — |
| DEF 14A | Proxy statement | Mar 12, 2026 | Apr 23, 2026 |
| DEFA14A | Additional proxy material | Mar 12, 2025 | — |
| DEF 14A | Proxy statement | Mar 12, 2025 | Apr 24, 2025 |
| DEFA14A | Additional proxy material | Mar 11, 2024 | — |
| DEF 14A | Proxy statement | Mar 11, 2024 | Apr 25, 2024 |
| DEFA14A | Additional proxy material | Mar 10, 2023 | — |
| DEF 14A | Proxy statement | Mar 10, 2023 | — |
| DEFA14A | Additional proxy material | Mar 11, 2022 | — |
| DEF 14A | Proxy statement | Mar 11, 2022 | Apr 28, 2022 |
| DEFA14A | Additional proxy material | Mar 11, 2021 | — |
| DEF 14A | Proxy statement | Mar 11, 2021 | Apr 22, 2021 |
| DEFA14A | Additional proxy material | Apr 2, 2020 | — |
| DEFA14A | Additional proxy material | Mar 11, 2020 | — |
| DEF 14A | Proxy statement | Mar 11, 2020 | Apr 23, 2020 |
| DEFA14A | Additional proxy material | Mar 13, 2019 | — |
| DEF 14A | Proxy statement | Mar 13, 2019 | Apr 25, 2019 |
| DEFA14A | Additional proxy material | Mar 13, 2018 | — |
| DEF 14A | Proxy statement | Mar 13, 2018 | Apr 26, 2018 |
| DEFA14A | Additional proxy material | Mar 13, 2017 | — |
| DEF 14A | Proxy statement | Mar 13, 2017 | Apr 27, 2017 |
| DEFA14A | Additional proxy material | Mar 14, 2016 | — |
| DEF 14A | Proxy statement | Mar 14, 2016 | Apr 28, 2016 |
| DEFA14A | Additional proxy material | Mar 11, 2015 | — |
| DEF 14A | Proxy statement | Mar 11, 2015 | Apr 23, 2015 |
| DEFA14A | Additional proxy material | Mar 10, 2014 | — |
| DEF 14A | Proxy statement | Mar 10, 2014 | Apr 24, 2014 |
| DEFA14A | Additional proxy material | Mar 12, 2013 | — |
| DEF 14A | Proxy statement | Mar 12, 2013 | Apr 25, 2013 |
| DEFA14A | Additional proxy material | Mar 13, 2012 | — |
| DEF 14A | Proxy statement | Mar 13, 2012 | Apr 26, 2012 |
| PRE 14A | Preliminary proxy statement | Feb 24, 2012 | Apr 26, 2012 |
| DEFA14A | Additional proxy material | Mar 8, 2011 | — |
| DEF 14A | Proxy statement | Mar 8, 2011 | Apr 21, 2011 |
| DEFA14A | Additional proxy material | Feb 26, 2010 | — |
| DEF 14A | Proxy statement | Feb 26, 2010 | Apr 22, 2010 |
| DEFA14A | Additional proxy material | Mar 13, 2009 | — |
| DEF 14A | Proxy statement | Mar 13, 2009 | Apr 23, 2009 |
| DEFA14A | Additional proxy material | Mar 11, 2008 | — |
| DEF 14A | Proxy statement | Mar 11, 2008 | Apr 24, 2008 |
| DEFA14A | Additional proxy material | Mar 29, 2007 | — |
| DEF 14A | Proxy statement | Mar 29, 2007 | Apr 26, 2007 |
Showing 42 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.