Piontek Gregg sold NPKI

March 25, 2026 · Form 4 insider transaction

Piontek Gregg sold 15,000 shares of NPK International Inc. at $15.03 per share, a transaction worth $225.4K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction
Disposed (sell-side)
Shares
15,000
Price
$15.03
Total value
$225.4K
Role
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateMarch 25, 2026
Filing dateMarch 26, 2026
Shares owned after869,326
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

The reported sale of 15,000 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 3, 2025.; The price reported is the weighted average price. These shares were sold in multiple transactions in the open market at prices ranging from $15.00 to $15.12, 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