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NPK International (NPKI) 10K Form and Latest SEC Filings 2026

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$15.27 -0.44 (-2.78%)
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Latest NPK International SEC Filings & Recent Activity

NPK International (NYSE:NPKI) has submitted 430+ documents to the U.S. Securities and Exchange Commission (SEC) since 2017. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. Key figures from these filings, including revenue, earnings, and cash flow, are summarized in NPK International's financial statements. The most recent filing was a Form 8-K submitted on May 1, 2026.

Form 4
NPK International Inc. Reports Ownership Change on Apr. 10, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

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8-K
NPK International Files Current Report on May. 1, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

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10-Q
NPK International Files Quarterly Report on May. 1, 2026

The 10-Q contains NPK International's unaudited quarterly financial statements, revenue, earnings updates, and cash flow changes between annual reports.

View earnings history

NPK International SEC Filing History

Browse NPK International's complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
05/01/2026 11:09 AM
NPK International (71829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/01/2026 10:50 AM
NPK International (71829) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
04/10/2026 4:51 PM
NPK International (71829) Issuer
Piontek Gregg (1418328) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/09/2026 3:13 PM
NPK International (71829) Filer
Form DEF 14A
04/09/2026 3:16 PM
NPK International (71829) Filer
Form DEFA14A
04/09/2026 3:20 PM
NPK International (71829) Filer
Form ARS
04/09/2026 12:42 PM
DIMENSIONAL FUND ADVISORS LP (354204) Filed by
NPK International (71829) Subject
Form SCHEDULE 13G/A
04/03/2026 12:00 PM
NPK International (71829) Issuer
Piontek Gregg (1418328) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/27/2026 10:09 AM
NPK International (71829) Subject
VANGUARD GROUP INC (102909) Filed by
Form SCHEDULE 13G/A
03/26/2026 3:29 PM
NPK International (71829) Issuer
Piontek Gregg (1418328) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/10/2026 3:29 PM
Fruge Mary Celeste (1975485) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2026 3:30 PM
Fruge Mary Celeste (1975485) Reporting
NPK International (71829) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/05/2026 4:50 PM
NPK International (71829) Issuer
Piontek Gregg (1418328) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
02/27/2026 1:32 PM
NPK International (71829) Filer
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
02/26/2026 3:04 PM
NPK International (71829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/21/2026 3:40 PM
Fruge Mary Celeste (1975485) Reporting
NPK International (71829) Issuer
Form 4/A
11/25/2025 4:25 PM
Lewis Michael A (1423238) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/24/2025 3:21 PM
Lewis Michael A (1423238) Reporting
NPK International (71829) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
11/24/2025 8:00 AM
NPK International (71829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/14/2025 9:09 AM
AMERIPRISE FINANCIAL INC (820027) Filed by
NPK International (71829) Subject
Form SCHEDULE 13G/A
10/31/2025 12:55 PM
NPK International (71829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/31/2025 10:51 AM
NPK International (71829) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
10/09/2025 12:48 PM
DIMENSIONAL FUND ADVISORS LP (354204) Filed by
NPK International (71829) Subject
Form SCHEDULE 13G/A
10/06/2025 7:19 PM
LANIGAN MATTHEW (1672978) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
10/01/2025 3:28 PM
Briggs Lori (1880836) Reporting
NPK International (71829) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
09/04/2025 6:31 PM
LANIGAN MATTHEW (1672978) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/26/2025 4:22 PM
LANIGAN MATTHEW (1672978) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/26/2025 4:22 PM
Lewis Michael A (1423238) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/22/2025 3:43 PM
LANIGAN MATTHEW (1672978) Reporting
NPK International (71829) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
08/20/2025 3:19 PM
NPK International (71829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/12/2025 5:32 PM
Briggs Lori (1880836) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
08/06/2025 11:31 AM
NPK International (71829) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
06/23/2025 3:09 PM
NPK International (71829) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/17/2025 4:37 PM
Lewis Michael A (1423238) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/16/2025 3:34 PM
Lewis Michael A (1423238) Reporting
NPK International (71829) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
06/10/2025 4:51 PM
Briggs Lori (1880836) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/03/2025 5:21 PM
Fruge Mary Celeste (1975485) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/03/2025 5:21 PM
NPK International (71829) Issuer
Piontek Gregg (1418328) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
06/03/2025 5:21 PM
LANIGAN MATTHEW (1672978) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/03/2025 5:21 PM
Briggs Lori (1880836) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
06/03/2025 5:22 PM
NPK International (71829) Issuer
WHITE DOUGLAS L (1608944) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
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05/20/2025 3:17 PM
Meer Claudia Michel (1844492) Reporting
NPK International (71829) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)

NPK International SEC Filings - Frequently Asked Questions

NPK International (NPKI) has submitted 430+ filings to the SEC since 2017. You can browse the complete history or filter by form type using the tools above.

NPK International's fiscal year ends on December 31. The company typically files its 10-K annual report by the end of February, covering the prior fiscal year's financial results. Key financial data from these reports is available on NPK International's financial statements page.

The most recent filing was a Form 8-K submitted on May 1, 2026. This was a current report on a material business event.

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NYSE:NPKI) was last updated on 5/15/2026 by MarketBeat.com Staff.
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