LANIGAN MATTHEW - Insider Non-Derivative Transactions at NPK International Inc. (NPKI) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Oct 3, 2025, LANIGAN MATTHEW's relationship to NPK International Inc. (NPKI) is Director,Officer (President & CEO), and currently has 325,664 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other NPKI insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

LANIGAN MATTHEW - Insider Non-Derivative Transactions of NPKI Common Stock

LANIGAN MATTHEW - Insider Non-Derivative Transactions at NPKI

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Oct 4, 2025	G -- (Common Stock)	770249	0	325664
Sep 4, 2025	Sell -- (Common Stock)	1000	10.38	1095913
Sep 4, 2025	M -- (Common Stock)	1000	4.32	1096913
Aug 23, 2025	Sell -- (Common Stock)	68896	10.34	1095913
Aug 23, 2025	M -- (Common Stock)	68896	4.32	1164809
Jun 2, 2025	F -- (Common Stock)	42754	8.09	1095913
Jun 2, 2025	M -- (Common Stock)	108651	0	1100134
Jun 2, 2025	F -- (Common Stock)	39423	8.09	1138667
Jun 2, 2025	F -- (Common Stock)	22232	8.09	1178090
Jun 2, 2025	M -- (Common Stock)	100188	0	1200322
May 15, 2025	Acquisition -- (Common Stock)	212667	0	991483