NEU insider trading

NYSE Basic Materials

NEWMARKET CORP: insider trade history from SEC Form 4 filings.

Total Form 4 trades
282
Last 90 days
1
Buys / sells
1% / 12%
Market cap
$5.77B

About NEWMARKET CORP

NewMarket Corporation, through its subsidiaries, primarily engages in the manufacture and sale of petroleum additives. It offers lubricant additives for use in various vehicle and industrial applications, including engine oils, transmission fluids, off-road powertrain and hydraulic systems, gear oils, hydraulic oils, turbine oils, and other applications where metal-to-metal moving parts are utilized; engine oil additives designed for passenger cars, motorcycles, on and off-road heavy duty commercial equipment, locomotives, and engines in ocean-going vessels; driveline additives designed for products, such as transmission fluids, axle fluids, and off-road powertrain fluids; and industrial additives designed for products for industrial applications consisting of hydraulic fluids, greases, industrial gear fluids, and industrial specialty applications comprising turbine oils. The company also provides fuel additives that are used to enhance the oil refining process and the performance of gasoline, diesel, biofuels, and other fuels to industry, government, original equipment manufacturers, and individual customers. In addition, it engages in the marketing of antiknock compounds, as well as contracted manufacturing and related services; and owns and manages a real property in Virginia. The company operates in North America, Latin America, the Asia Pacific, Europe, the Middle East, Africa, India, and internationally. NewMarket Corporation was founded in 1887 and is headquartered in Richmond, Virginia.

Company website: www.newmarket.com

NEU insider activity at a glance

FilingIQ tracks 282 insider transactions for NEU in filings since Feb 4, 2015. The most recent transaction is dated Sep 9, 2026.

Across the full history, 3 open-market purchases and 34 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on NEU insider trades is 63.8/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

Latest NEU Form 4 filings

Most recent disclosures. Sign up to filter by score, transaction code, or insider role.

Other Basic Materials tickers with recent insider activity

13F funds holding NEU

Frequently asked

How many insider trades does FilingIQ track for NEU?
FilingIQ tracks 282 Form 4 insider transactions for NEU (NEWMARKET CORP), covering filings from Feb 4, 2015 onwards. 1 of those are dated within the last 90 days.
Are NEU insiders net buyers or net sellers?
Across the full Form 4 history for NEU, 3 transactions (1%) were open-market purchases and 34 (12%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does NEU insider data come from?
Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ normalises insider identity across reporting variations and scores discretionary open-market purchases and sales on its multi-factor composite model.
What sector is NEU in?
NEWMARKET CORP (NEU) is classified in the Basic Materials sector, specifically Specialty Chemicals, with a current market capitalisation of $5.77B.

Methodology & sources

Every NEU insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.