NL INDUSTRIES INC (NL) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-05-15

NL INDUSTRIES INC (NL) has filed 6 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-15. 3 Form 8-K material event filings were reported by NL in the last 90 days. InsiderAlpha tracks every NL SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About NL INDUSTRIES INC (NL)

SEC CIK	0000072162

90-Day SEC Filing Activity

Form 4 filings (90d)	6
Form 8-K filings (90d)	3
Latest Form 4 filing	2026-05-15

Recent NL Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-05-14	Feehan Loretta J.	Insider	A — Grant or award	6.0K	$6.67	$40K	SEC
2026-05-14	Kramer Kevin B	Insider	A — Grant or award	6.0K	$6.67	$40K	SEC
2026-05-14	Harper John E	Insider	A — Grant or award	6.0K	$6.67	$40K	SEC
2026-05-14	TURNER R GERALD DR	Insider	A — Grant or award	6.0K	$6.67	$40K	SEC
2026-05-14	MOORE CECIL H JR	Insider	A — Grant or award	6.0K	$6.67	$40K	SEC
2026-05-14	Mendes Meredith W.	Insider	A — Grant or award	6.0K	$6.67	$40K	SEC
2025-05-15	MOORE CECIL H JR	Director	A — Grant or award	2.5K	$8.04	$20K	SEC
2025-05-15	TURNER R GERALD DR	Director	A — Grant or award	2.5K	$8.04	$20K	SEC

All transactions sourced from SEC EDGAR Form 4 filings for NL INDUSTRIES INC (NL). Updated in real time as new filings are submitted to the SEC.

Most-Active NL Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Feehan Loretta J.	1	$40K
TURNER R GERALD DR	1	$40K
MOORE CECIL H JR	1	$40K
Mendes Meredith W.	1	$40K
Kramer Kevin B	1	$40K

Recent NL Form 8-K Material Events

2026-05-26 — Item 1.01, 2.01, 2.03, 3.03, 5.02, 5.03, 9.01 [SEC]
2026-05-14 — Item 5.07, 7.01, 9.01 [SEC]
2026-05-06 — Item 2.02, 9.01 [SEC]
2026-03-09 — Item 2.02, 9.01 · Earnings · neutral [SEC]
NL Industries reported fourth quarter 2025 financial results on March 9, 2026. The filing provides standard quarterly results disclosure without indication of beat, miss, or material guidance changes.
2026-02-26 — Item 7.01, 9.01 · Other · neutral [SEC]
NL Industries issued a press release on February 26, 2026, disclosed via Regulation FD. The 8-K filing itself contains no substantive information—only a reference to an attached press release (Exhibit 99.1) that is not included in this excerpt. Without the actual press release co

Recent Insider Filings

2026-05-15 — TURNER R GERALD DR (Insider)
2026-05-15 — MOORE CECIL H JR (Insider)
2026-05-15 — Mendes Meredith W. (Insider)
2026-05-15 — Kramer Kevin B (Insider)
2026-05-15 — Harper John E (Insider)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in NL insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

NL Insider Trading — FAQ

What is the latest insider trade for NL?: NL INDUSTRIES INC (NL) had 6 insider filings in the last 90 days, with the most recent on 2026-05-15. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying NL stock?: 0 insider purchases of NL were filed in the last 90 days.
How many insiders are selling NL stock?: 0 insider sales of NL were filed in the last 90 days.
Where can I see NL SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every NL SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

Open the live NL dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.