Lewis Michael A bought NPKI
May 20, 2026 · Form 4 insider transaction
Lewis Michael A bought 8,558 shares of NPK International Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as grant or award and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Acquired (buy-side)
Shares
8,558
Price
$0.00
Total value
N/A
InsiderLewis Michael A
RoleDirector
SecurityCommon Stock
Transaction codeA: Grant or award
Transaction dateMay 20, 2026
Filing dateMay 21, 2026
Shares owned after137,878
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
The shares will vest on the earlier of the first anniversary of the date of grant or the day prior to the next annual stockholders meeting.