Piontek Gregg sold NPKI
March 4, 2026 · Form 4 insider transaction
Piontek Gregg sold 73,590 shares of NPK International Inc. at $14.10 per share, a transaction worth $1.04M. 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.
Footnotes
The reported exercise of 73,590 options and subsequent sale of the shares acquired upon exercise 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 options were sold in multiple transactions in the open market at prices ranging from $14.00 to $14.31, 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 options sold at each separate price within the range set forth in footnote (2) to this Form 4.