Piontek Gregg
SEC insider (Form 3/4/5 filer). CIK 0001418328. Senior Vice President and CFO at NPK International Inc. (NPKI). 17 reported Form 4/5 transactions since Sep 2024; latest on Jun 1, 2026. Located in THE WOODLANDS, TX.
Companies Piontek Gregg has filed insider reports for
- NPK International Inc. (NPKI): Officer, Senior Vice President and CFO
Piontek Gregg
CIK: 0001418328
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
NPK International Inc.
Discretionary Trading P&L
Holdings
Transaction History (17 total)
- Jun 1, 2026NPKI
NPK International Inc.
Tax PaymentDirect11.2K shares at avg. $14.31$161K - Jun 1, 2026NPKI
NPK International Inc.
Tax PaymentDirect15.9K shares at avg. $14.31$227K - Jun 1, 2026NPKI
NPK International Inc.
Tax PaymentDirect9K shares at avg. $14.31$128K - Jun 1, 2026NPKI
NPK International Inc.
ExerciseDirect40.4K shares- - May 19, 2026NPKI
NPK International Inc.
AwardDirect34.6K shares- - Apr 9, 2026NPKI
NPK International Inc.
SaleDirect15K shares at avg. $15.04$226K - Apr 1, 2026NPKI
NPK International Inc.
SaleDirect35K shares at avg. $14.51$508K - Mar 25, 2026NPKI
NPK International Inc.
SaleDirect15K shares at avg. $15.03$225K - Mar 4, 2026NPKI
NPK International Inc.
SaleDirect35K shares at avg. $14.02$491K - Mar 4, 2026NPKI
NPK International Inc.
ExerciseDirect73.6K shares at avg. $4.32$318K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 1, 2026 | NPKI NPK International Inc. | Tax Payment | 11,241 | $14.31 | $160,859 | Direct |
| Jun 1, 2026 | NPKI NPK International Inc. | Tax Payment | 15,889 | $14.31 | $227,372 | Direct |
| Jun 1, 2026 | NPKI NPK International Inc. | Tax Payment | 8,959 | $14.31 | $128,203 | Direct |
| Jun 1, 2026 | NPKI NPK International Inc. | Exercise | 40,379 | - | $0 | Direct |
| May 19, 2026 | NPKI NPK International Inc. | Award | 34,566 | - | $0 | Direct |
| Apr 9, 2026 | NPKI NPK International Inc. | Sale | 15,000 | $15.04 | $225,675 | Direct |
| Apr 1, 2026 | NPKI NPK International Inc. | Sale | 35,000 | $14.51 | $507,864 | Direct |
| Mar 25, 2026 | NPKI NPK International Inc. | Sale | 15,000 | $15.03 | $225,384 | Direct |
| Mar 4, 2026 | NPKI NPK International Inc. | Sale | 35,000 | $14.02 | $490,592 | Direct |
| Mar 4, 2026 | NPKI NPK International Inc. | Exercise | 73,590 | $4.32 | $317,909 | Direct |
1-10 of 17 transactions