Matthew Lanigan

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
The Woodlands, TX
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
By: M. Celeste Fruge For: Matthew Lanigan
Source evidence Original filing metadata and source links for verification. 1 source field
Transaction source note
Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for Matthew Lanigan

Form 4 holding President & CEO, Director

NPK International Inc.

Security class
Restricted Stock Units
Shares / value
0
Estimated value
$2,543,292
Report date
01 Jun 2026
Price
$8.23
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding President & CEO, Director

NPK International Inc.

Security class
Non-Qualified Stock Option (right to buy)
Shares / value
0
Estimated value
$0
Report date
03 Sep 2025
Price
$10.38
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Insider Reports Filed by Matthew Lanigan

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