InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (2 ops.)
Explore the complete record of transactions filed by Piontek Gregg, Chief Financial Officer. Director active across 3 companies, notably NPK International Inc.. Aggregated, 5 reports have been recorded. Total volume traded: €876k. The latest transaction was filed on 1 April 2026 (Cession). Regulator: SEC (Form 4). The full history is free.
Declarations5 total
US$438,17035,000 shares@ US$12.51910.034% mcap100.0% of flow
Common Stock
SEC:0001418328-26-000006·
€438,17035,000 shares@ €12.51910.034% mcap50.0% of flow
Common Stock
SEC:0001418328-26-000006:0·
050,000 shares0
Common Stock
SEC:0000071829-22-000120:0·
047,433 shares0
Common Stock
SEC:0000071829-21-000086·
047,433 shares0
Common Stock
SEC:0000071829-21-000086:0·
5 of 5 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.
