March 6, 2026 · Form 4 insider transaction
Fruge Mary Celeste bought 11,193 shares of NPK INTERNATIONAL INC at $4.32 per share, a transaction worth $48.4K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.
The reported exercise of 11,193 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 5, 2025.