How many insider trades does FilingIQ track for NL?

FilingIQ tracks 103 Form 4 insider transactions for NL (NL INDUSTRIES INC), covering filings from May 21, 2015 onwards. 6 of those were filed in the last 90 days.

Are NL insiders net buyers or net sellers?

Across the full Form 4 history for NL, 28 transactions (27%) were open-market purchases and 6 (6%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does NL insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is NL in?

NL INDUSTRIES INC (NL) is classified in the Industrials sector, specifically Security & Protection Services, with a current market capitalisation of $298.06M.

NL insider trading

NYSE Industrials

NL INDUSTRIES INC — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

103

Last 90 days

Buys / sells

27% / 6%

Market cap

$298.06M

About NL INDUSTRIES INC

NL Industries, Inc., through its subsidiaries, operates in the component products industry in Europe, North America, the Asia Pacific, and internationally. The company manufactures and sells mechanical and electronic cabinet locks and other locking mechanisms, including disc tumbler locks; pin tumbler locking mechanisms under KeSet, System 64, TuBar, and Turbine brands; and electronic locks under CompX eLock and StealthLock brands for use in various applications, such as mailboxes, ignition systems, file cabinets, desk drawers, tool storage cabinets, high security medical cabinetry, integrated inventory and access control secured narcotics boxes, electronic circuit panels, storage compartments, gas station security, vending, and cash containment machines. It also offers original equipment and aftermarket stainless steel exhaust headers, exhaust pipes, mufflers, and other exhaust components; gauges, such as GPS speedometers and tachometers; mechanical, electronic controls, and throttles; wake enhancement devices, trim tabs, steering wheels, and billet aluminum accessories; dash panels, LED indicators, wire harnesses; and grab handles, pin cleats, and other accessories for performance and ski/wakeboard and performance boats. In addition, the company produces and markets value-added titanium dioxide pigments, a base industrial product used in imparting whiteness, brightness, opacity, and durability to a diverse range of customer applications and end-use markets, including coatings, plastics, paper, inks, cosmetics, pharmaceuticals, and other industrial and consumer products. The company sells its component products directly to original equipment manufacturers, as well as through distributors. NL Industries, Inc. was founded in 1891 and is based in Dallas, Texas. NL Industries, Inc. operates as a subsidiary of Valhi, Inc.

Company website: nl-ind.com

NL insider activity at a glance

FilingIQ has scored 103 insider transactions for NL since May 21, 2015. The most recent filing in our index is dated May 14, 2026.

Across the full history, 28 open-market purchases and 6 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 NL insider trades is 45.9/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live NL trades on FilingIQ Raw filings on SEC EDGAR

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Frequently asked

How many insider trades does FilingIQ track for NL?: FilingIQ tracks 103 Form 4 insider transactions for NL (NL INDUSTRIES INC), covering filings from May 21, 2015 onwards. 6 of those were filed in the last 90 days.
Are NL insiders net buyers or net sellers?: Across the full Form 4 history for NL, 28 transactions (27%) were open-market purchases and 6 (6%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does NL insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is NL in?: NL INDUSTRIES INC (NL) is classified in the Industrials sector, specifically Security & Protection Services, with a current market capitalisation of $298.06M.

Methodology & sources

Every NL 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.