Who
Gregg Piontek
Senior Vice President and CFO
Company insider
Files Form 4 as: Senior Vice President and CFO, NPK International.
In numbers
- Trades disclosed
- 201
- Buys
- 6
- Sells
- 9
- Bought
- $126K
- Sold
- $6.2M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 12 Jun 2007
- Last trade
- 1 Jun 2026
- Last filed
- 3 Jun 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code F | $128K8,959 at $14.31 | filing |
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code F | $227K15,889 at $14.31 | filing |
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code F | $161K11,241 at $14.31 | filing |
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK Internationaloption or derivative · Business Services | SEC FORM 4 Code M | —40,379 at $0.00 | filing |
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code M | —40,379 at $0.00 | filing |
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK Internationaloption or derivative · Business Services | SEC FORM 4 Code M | —40,379 at $0.00 | filing |
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code F | $128K8,959 at $14.31 | filing |
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code F | $227K15,889 at $14.31 | filing |
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code F | $161K11,241 at $14.31 | filing |
| 1 Jun 2026filed 3 Jun 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code M | —40,379 at $0.00 | filing |
| 19 May 2026filed 21 May 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code A | —34,566 at $0.00 | filing |
| 19 May 2026filed 21 May 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code A | —34,566 at $0.00 | filing |
| 9 Apr 2026filed 10 Apr 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Sold | $226K15,000 at $15.05 | filing |
| 9 Apr 2026filed 10 Apr 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Sold | $226K15,000 at $15.05 | filing |
| 1 Apr 2026filed 3 Apr 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Sold | $508K35,000 at $14.51 | filing |
| 1 Apr 2026filed 3 Apr 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Sold | $508K35,000 at $14.51 | filing |
| 25 Mar 2026filed 26 Mar 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Sold | $225K15,000 at $15.03 | filing |
| 25 Mar 2026filed 26 Mar 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Sold | $225K15,000 at $15.03 | filing |
| 4 Mar 2026filed 5 Mar 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Code M | $318K73,590 at $4.32 | filing |
| 4 Mar 2026filed 5 Mar 2026 | NPKI NPK InternationalBusiness Services | SEC FORM 4 Sold | $1.0M73,590 at $14.10 | filing |
News
Critical Comparison: NPK International (NYSE:NPKI) vs. Transcat (NASDAQ:TRNS)NPKI · themarketsdaily.com · 18 Oct 2026Financial Review: NPK International (NYSE:NPKI) and Toromont Industries (OTCMKTS:TMTNF)NPKI · themarketsdaily.com · 15 Oct 2026
0 headlines in the last 90 days name Gregg Piontek; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.