Gregg Piontek's Net Worth
Gregg Piontek's net worth is estimated to be at least $2,737,872.08 as of 03/28/2026. CoreStreet's estimation of Gregg Piontek's net worth is based on their sale of stock and current holding of stock.
Gregg Piontek is CFO at NPK International Inc.. They have executed at least 7 trades of stock as per SEC Form 4 filings. Their most recent trade was for 108,590 units of NPKI stock on 03/04/2026. Their biggest sale was on 03/04/2026 when they sold 108,590 units of NPK International Inc. stock for $1,527,861.30. They typically trade 1 times per year.
Total value of insider buys:
- $53,500.00
Total value of insider sells:
- $2,684,372.08
Most recent insider trade:
- March 4, 2026
Gregg Piontek's Insider Trading History
| NPK International Inc. | Title | Amount | Price | Type | Total Value |
|---|---|---|---|---|---|
March 4, 2026 | CFO | 108,590 | $14.07 | Sell | $1,527,861.30 |
| Newpark Resources Inc | Title | Amount | Price | Type | Total Value |
|---|---|---|---|---|---|
Nov. 11, 2020 | CFO | 15,000 | $1.08 | Buy | $16,200.00 |
May 11, 2020 | CFO | 5,000 | $1.58 | Buy | $7,900.00 |
May 8, 2020 | CFO | 20,000 | $1.47 | Buy | $29,400.00 |
May 2, 2018 | CFO | 51,490 | $10.51 | Sell | $541,159.90 |
May 19, 2017 | VP | 34,372 | $8.04 | Sell | $276,350.88 |
May 14, 2013 | CFO | 30,000 | $11.30 | Sell | $339,000.00 |