InsidersTradesSigma
Total declarations
Companies
▲ Purchases (1 ops.)
▼ Sales (2 ops.)
Insider track record
CFODisclosed buys
1
Disclosed sells
2
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Explore the complete record of transactions filed by Piontek Gregg, Chief Financial Officer. Director active across 3 companies, notably NPK International Inc.. Aggregated, 10 reports have been recorded. Breakdown: 1 buy · 2 sells. Total volume traded: €901k. History available since 1 June 2021. The latest transaction was disclosed on 1 April 2026 (Cession). Regulator: SEC (Form 4). The full history is accessible without signup.
Declarations10 total
35,000 shares@ US$14.51040.034% mcap50.0% of flowCommon StockSEC:0001418328-26-000006
35,000 shares@ US$14.51040.034% mcap50.0% of flowCommon StockSEC:0001418328-26-000006:0
85,706 shares0Common StockSEC:0000071829-25-000061:0
51,181 shares0Common StockSEC:0000071829-24-000082:0
68,308 shares0Common StockSEC:0000071829-24-000049:0
43,791 shares0Common StockSEC:0000071829-23-000102:0
10,000 shares@ US$2.5487100.0% of flowCommon StockSEC:0000071829-22-000148:0
Ideal exit: 2 May 2023 (T+270)
50,000 shares0Common StockSEC:0000071829-22-000120:0
47,433 shares0Common StockSEC:0000071829-21-000086:0
47,433 shares0Common StockSEC:0000071829-21-000086
10 of 10 declarations
About Piontek Gregg
Piontek Gregg is Senior Vice President and Chief Financial Officer at NPK International Inc. and Newpark Resources Inc. He oversees the financial operations of the companies, including budgeting and risk management. With a strong background in finance, Piontek plays a crucial role in the financial strategy of NPK and Newpark, contributing to their growth and profitability.
