LANIGAN MATTHEW — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

LANIGAN MATTHEW has filed 3 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $3.14M.

Profile

LANIGAN MATTHEW

Matthew Lanigan is the President and CEO of NPK International Inc., a company specializing in temporary worksite access solutions. He has held the role of Director and has been involved in the company's operations, particularly in the rental of recyclable composite matting products.

RolePresident & CEO, Director
Notability20/100

Board memberships

Awards & honors

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-06-05NPKINPK International Inc.S — Open-market sale167.4K$14.43$2.42M
2026-06-03NPKINPK International Inc.M — Option exercise100.2K$0.00
2026-06-03NPKINPK International Inc.F — Tax withholding / forfeiture39.4K$14.31$564K
2026-06-03NPKINPK International Inc.F — Tax withholding / forfeiture27.9K$14.31$399K
2026-06-03NPKINPK International Inc.F — Tax withholding / forfeiture22.2K$14.31$318K
2026-05-21NPKINPK International Inc.A — Grant or award85.8K$0.00
2025-10-03NPKINPK International Inc.G — Bona-fide gift770.2K$0.00
2025-09-03NPKINPK International Inc.S — Open-market sale1.0K$10.38$10K
2025-09-03NPKINPK International Inc.M — Option exercise1.0K$4.32$4K
2025-08-22NPKINPK International Inc.S — Open-market sale68.9K$10.34$713K
2025-08-22NPKINPK International Inc.M — Option exercise68.9K$4.32$298K

Companies — Last 90 Days

Frequently Asked Questions

Who is LANIGAN MATTHEW?

Matthew Lanigan is the President and CEO of NPK International Inc., a company specializing in temporary worksite access solutions. He has held the role of Director and has been involved in the company's operations, particularly in the rental of recyclable composite matting products.…

How many SEC Form 4 filings has LANIGAN MATTHEW submitted recently?

3 primary Form 4 filings in the last 90 days, covering 1 company.

Has LANIGAN MATTHEW been buying or selling stock?

Recorded transactions: 0 open-market purchases () and 3 open-market sales ($3.14M) across all tracked filings.

Where can I see all of LANIGAN MATTHEW'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

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