Piontek Gregg sold NPKI
June 1, 2026 · Form 4 insider transaction
Piontek Gregg sold 15,889 shares of NPK International Inc. at $14.31 per share, a transaction worth $227.4K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Disposed (sell-side)
Shares
15,889
Price
$14.31
Total value
$227.4K
InsiderPiontek Gregg
Role—
SecurityCommon Stock
Transaction codeF: Shares withheld for taxes
Transaction dateJune 1, 2026
Filing dateJune 3, 2026
Shares owned after829,044
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Represents shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units.