Gregg Piontek Biography and Net Worth

CFO of NPK International

Gregg Piontek joined NPK in April 2007 as Vice President, Controller, and Chief Accounting Officer. Before NPK, he was Vice President and Chief Accounting Officer at Stewart & Stevenson LLC, where he directed all start-up and purchase accounting functions related to the acquisition of assets from Stewart & Stevenson Services, Inc., and served as the lead executive financial officer for their $150 million public debt offering. Earlier roles include Assistant Corporate Controller and Controller of the Power Products Division at Stewart & Stevenson Services, Inc., and various financial roles at General Electric, CNH Global, and Deloitte & Touche. Mr. Piontek is a Certified Public Accountant and holds an MBA from Marquette University and a bachelor’s degree in accounting from Arizona State University.

What is Gregg Piontek's net worth?: The estimated net worth of Gregg Piontek is at least $12.29 million as of March 4th, 2026. Piontek owns 884,326 shares of NPK International stock worth more than $12,294,784 as of March 10th. This net worth estimate does not reflect any other assets that Piontek may own. Learn More about Gregg Piontek's net worth.
How do I contact Gregg Piontek?: The corporate mailing address for Piontek and other NPK International executives is 9320 LAKESIDE BOULEVARD, SUITE 100, THE WOODLANDS, TX, 77381. NPK International can also be reached via phone at (281) 362-6800 and via email at [email protected]. Learn More on Gregg Piontek's contact information.
Has Gregg Piontek been buying or selling shares of NPK International?: Over the course of the past ninety days, Gregg Piontek has sold $1,527,861.30 of NPK International stock. Most recently, Gregg Piontek sold 108,590 shares of the business's stock in a transaction on Wednesday, March 4th. The shares were sold at an average price of $14.07, for a transaction totalling $1,527,861.30. Following the completion of the sale, the chief financial officer now directly owns 884,326 shares of the company's stock, valued at $12,442,466.82. Learn More on Gregg Piontek's trading history.
Who are NPK International's active insiders?: NPK International's insider roster includes Lori Briggs (Executive Vice President Business Operations), Matthew Lanigan (President and Chief Executive Officer), Matthew Lanigan (President and Chief Executive Officer), Michael Lewis (Director), and Gregg Piontek (CFO). Learn More on NPK International's active insiders.
Are insiders buying or selling shares of NPK International?: During the last year, NPK International insiders bought shares 1 times. They purchased a total of 12,500 shares worth more than $100,000.00. During the last year, insiders at the sold shares 10 times. They sold a total of 212,252 shares worth more than $2,567,743.98. The most recent insider tranaction occured on March, 4th when CFO Gregg Piontek sold 108,590 shares worth more than $1,527,861.30. Insiders at NPK International own 4.9% of the company. Learn More about insider trades at NPK International.
Information on this page was last updated on 3/4/2026.

Gregg Piontek Insider Trading History at NPK International

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction	Details
3/4/2026	Sell	108,590	$14.07	$1,527,861.30	884,326

Gregg Piontek Buying and Selling Activity at NPK International

NPK International Company Overview

NPK International Inc. provides products, rentals, and services primarily to the oil and natural gas exploration and production (E&P) industry. It operates through two segments, Fluids Systems and Industrial Solutions. The Fluids Systems segment provides drilling, completion, and stimulation fluids products and related technical services to customers primarily in the North America, Europe, the Middle East, and Africa, as well as other countries in the Asia Pacific and Latin America. The Industrial Solutions segment offers composite matting system rentals utilized for temporary worksite access; related site construction and services to customers in various markets, including power transmission, E&P, pipeline, renewable energy, petrochemical, construction, and other industries primarily in the United States and Europe; recyclable composite mats to customers worldwide; and access road construction, site planning and preparation, environmental protection, erosion control, and site restoration services. The company was formerly known as Newpark Resources, Inc. and changed its name to NPK International Inc. in December 2024. The company was incorporated in 1932 and is headquartered in The Woodlands, Texas.

Today's Range

Now: $13.90

$13.78

$14.23

50 Day Range

MA: $13.75

$11.90

$14.89

2 Week Range

Now: $13.90

$4.76

$15.96

Volume

699,979 shs

Average Volume

832,631 shs

Market Capitalization

$1.18 billion

P/E Ratio

30.90

Dividend Yield

N/A

Beta

1.23