Harper John E — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

Harper John E has filed 2 SEC Form 4 filings across 2 companies in the last 90 days.

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-05-15NLNL INDUSTRIES INCA — Grant or award6.0K$6.67$40K
2026-05-14KROKRONOS WORLDWIDE INCA — Grant or award5.5K$7.22$40K
2025-05-14KROKRONOS WORLDWIDE INCA — Grant or award2.8K$7.17$20K

Companies — Last 90 Days

Frequently Asked Questions

Who is Harper John E?

Harper John E is a corporate insider — currently tracked as Insider of NL INDUSTRIES INC (NL). InsiderAlpha tracks every SEC Form 4 filing in real time.

How many SEC Form 4 filings has Harper John E submitted recently?

2 primary Form 4 filings in the last 90 days, covering 2 companies.

Where can I see all of Harper John E's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

Open the live Harper John E profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.