Lewis Michael A sold NPKI

May 15, 2026 · Form 4 insider transaction

Lewis Michael A sold 2,013 shares of NPK International Inc. at $15.30 per share, a transaction worth $30.8K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.

Direction
Disposed (sell-side)
Shares
2,013
Price
$15.30
Total value
$30.8K
RoleDirector
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateMay 15, 2026
Filing dateMay 19, 2026
Shares owned after129,320
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

The reported sale of 2,013 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 7, 2025.; The price reported is the weighted average price. These shares were sold in multiple transactions in the open market at prices ranging from $15.21 to $15.54, 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.

View the original Form 4 on SEC EDGAR