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Leadership changes · SEC Form 8-K, Item 5.02

NPK International Inc. executive changes

Every leadership change NPK International Inc. reported to the SEC under Item 5.02: who left, who was appointed, to what role and from when, quoted from each filing.

Filings3
Appointments named3
Departures named1
Latest filing2026-09-14

NPK International Inc. filed 3 current reports with the SEC under Item 5.02, which covers directors and officers leaving or being appointed, the latest on 2026-09-14. Between them they name 4 people, with 3 appointments and 1 departure. Each change below is quoted from the filing and linked to it.

Every change, newest first

Filed 2026-09-14 · 8-K

Appointed: James Barton, Executive Vice President, Commercial Growth, effective 2026-09-22

On September 11, 2026, the Board of Directors (the "Board") of NPK International Inc. (the "Company") appointed James Barton as Executive Vice President, Commercial Growth & Operations of the Company effective as of September 22, 2026, succeeding Lori Briggs, who will cease to serve in such role on September 14, 2026.
Filed 2026-09-02 · 8-K

Departing: Gregg Piontek, Chief Financial Officer

Following nearly 20 years of service to NPK International Inc. (the "Company"), on August 28, 2026, Gregg Piontek, Senior Vice President and Chief Financial Officer ("CFO"), notified the Company of his intention to retire from the position of CFO on or before August 31, 2027, and upon the Board's appointment of a successor Chief Financial Officer.

Appointed: Matthew Warren, Chief Accounting Officer, effective 2026-08-31

In connection with Mr. Piontek's pending retirement, the Board appointed Matthew Warren as the Company's Chief Accounting Officer ("CAO") effective as of August 31, 2026.
Filed 2026-07-28 · 8-K

Appointed: Kristen J. Pederson, Director, effective 2026-07-28

On July 28, 2026, the Board of Directors (the "Board") of NPK International Inc. ("the Company") elected to increase the size of the Board from seven directors to eight directors effective July 28, 2026 and appointed Ms. Kristen J. Pederson to fill the resulting vacancy.
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Where this comes from

A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.

Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.

Cite this page

Permanent URL: https://mentionfox.com/executive-changes/npk-international
Last updated 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3
NPK International Inc. (NPKI) executive changes: James Barton appointed, Commercial Growth. MentionFox, 2026-09-27. https://mentionfox.com/executive-changes/npk-international