LANIGAN MATTHEW 4
4 · NPK International Inc. · Filed Aug 26, 2025
Insider Transaction Report
Form 4
LANIGAN MATTHEW
DirectorPresident & CEO
Transactions
- Exercise/Conversion
Non-Qualified Stock Option (right to buy)
2025-08-22$10.34/sh−68,896$712,536→ 1,000 totalExercise: $4.32From: 2019-06-01Exp: 2026-05-19→ Common Stock (68,896 underlying) - Sale
Common Stock
2025-08-22$10.34/sh−68,896$712,536→ 1,095,913 total - Exercise/Conversion
Common Stock
2025-08-22$4.32/sh+68,896$297,631→ 1,164,809 total
Footnotes (2)
- [F1]The reported sale of 68,896 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 23, 2025.
- [F2]The price reported is the weighted average price. These shares were sold in multiple transactions in the open market at prices ranging from $9.97 to $10.42, inclusive. The reporting person undertakes to provide to NPK International Inc., any security holder of NPK International Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (2) to this Form 4.