NEWMARKET CORP — Investor Relations & Filings
Filings indexed
1,022
across all filing types
Latest filing
2026-05-18
Regulatory Filings
Country
US
United States of America
Listing
US
NEU
NewMarket Corporation is a holding company that operates through its subsidiaries, primarily Afton Chemical Corporation and Ethyl Corporation. The company's core business is the development, manufacturing, and sale of petroleum additives. These chemical components are critical for enhancing the performance of lubricants and fuels. Afton Chemical's products are used in a wide range of applications, including engine oils, transmission fluids, industrial lubricants, and fuels, to improve efficiency, durability, and cleanliness in machinery and vehicles.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| FORM 11-K | 2026-05-18 | English | |
| 8-K - NEWMARKET CORP (0001282637) (Filer) | 2026-04-23 | English | |
| 10-Q - NEWMARKET CORP (0001282637) (Filer) | 2026-04-23 | English | |
| 8-K - NEWMARKET CORP (0001282637) (Filer) | 2026-04-22 | English | |
| 8-K - NEWMARKET CORP (0001282637) (Filer) | 2026-02-26 | English | |
| 8-K - NEWMARKET CORP (0001282637) (Filer) | 2026-02-26 | English |
Browse filings by year
21 years- 2026 18 filings
- 2025 42 filings
- 2024 50 filings
- 2023 50 filings
- 2022 33 filings
- 2021 38 filings
- 2020 42 filings
- 2019 39 filings
- 2018 49 filings
- 2017 43 filings
- 2016 39 filings
- 2015 51 filings
- 2014 52 filings
- 2013 56 filings
- 2012 57 filings
- 2011 51 filings
- 2010 57 filings
- 2009 45 filings
- 2008 85 filings
- 2007 60 filings
- 2006 65 filings
| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
15 filings
| |||||
| 46385760 | FORM 11-K | 2026-05-18 | English | ||
| 35888951 | 8-K - NEWMARKET CORP (0001282637) (Filer) | 2026-04-23 | English | ||
| 35727191 | 10-Q - NEWMARKET CORP (0001282637) (Filer) | 2026-04-23 | English | ||
| 35414397 | 8-K - NEWMARKET CORP (0001282637) (Filer) | 2026-04-22 | English | ||
| 32889493 | 8-K - NEWMARKET CORP (0001282637) (Filer) | 2026-02-26 | English | ||
| 32889494 | 8-K - NEWMARKET CORP (0001282637) (Filer) | 2026-02-26 | English | ||
| 32889489 | 4 - NEWMARKET CORP (0001282637) (Filer) | 2026-02-25 | English | ||
| 32889490 | 4 - NEWMARKET CORP (0001282637) (Filer) | 2026-02-20 | English | ||
| 32889491 | 4 - NEWMARKET CORP (0001282637) (Filer) | 2026-02-20 | English | ||
| 32889492 | 4 - NEWMARKET CORP (0001282637) (Filer) | 2026-02-20 | English | ||
| 32889495 | 8-K - NEWMARKET CORP (0001282637) (Filer) | 2026-02-18 | English | ||
| 28647186 | 10-K Filing | 2026-02-12 | English | ||
| 28647079 | 8-K Filing | 2026-02-11 | English | ||
| 28647050 | 4 Filing | 2026-02-09 | English | ||
| 28647024 | 4 Filing | 2026-02-09 | English | ||
Market data
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NEWMARKET CORP via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/30765/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=30765 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=30765 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
Full reference: API reference · OpenAPI schema
cURL
$ curl https://api.financialreports.eu/api/filings/?company=30765 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 30765}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for NEWMARKET CORP (id: 30765)"
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