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NPK International Inc. (NPKI)

NPK International Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

NPK International Inc. (NPKI) is a Oil & Gas Equipment & Services company based in US with a market capitalization of $1.2B. Revenue grew 27.4% year-over-year and the company generated $26.3M in free cash flow. This page tracks NPKI's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 460 employees · IPO Sep 6, 1990

Valuation

Valuation & price

$15.29 · as of May 17, 2026 · -6.5% vs 52w high

36.5

P/E ratio

Latest-FY diluted EPS

3.53

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$16.35$12.36$8.36Jul 25Dec 25Jul 26Jul 7, 25$8.55Jul 9, 25$8.55Jul 11, 25$8.54Jul 15, 25$8.41Jul 17, 25$8.49Jul 21, 25$8.36Jul 23, 25$8.95Jul 25, 25$9.03Jul 29, 25$9.05Jul 31, 25$9.02Aug 4, 25$8.68Aug 6, 25$9.00Aug 11, 25$9.49Aug 13, 25$10.00Aug 15, 25$9.86Aug 19, 25$9.76Aug 21, 25$10.00Aug 25, 25$10.32Aug 27, 25$10.30Aug 29, 25$10.40Sep 3, 25$10.31Sep 5, 25$10.50Sep 9, 25$10.43Sep 11, 25$10.67Sep 16, 25$10.88Sep 18, 25$11.04Sep 22, 25$11.09Sep 24, 25$11.13Sep 26, 25$11.31Sep 30, 25$11.31Oct 2, 25$11.29Oct 6, 25$11.14Oct 8, 25$11.15Oct 10, 25$10.74Oct 14, 25$11.13Oct 16, 25$11.51Oct 21, 25$12.26Oct 23, 25$12.78Oct 27, 25$12.92Oct 29, 25$13.66Oct 31, 25$12.30Nov 4, 25$12.52Nov 6, 25$12.70Nov 10, 25$12.47Nov 12, 25$12.71Nov 14, 25$11.95Nov 18, 25$11.83Nov 20, 25$11.21Nov 25, 25$12.19Nov 28, 25$12.31Dec 2, 25$12.42Dec 4, 25$12.94Dec 8, 25$12.72Dec 10, 25$12.98Dec 12, 25$12.91Dec 16, 25$12.65Dec 18, 25$12.33Dec 22, 25$12.33Dec 24, 25$12.20Dec 29, 25$12.10Jan 2, 26$12.10Jan 6, 26$12.45Jan 8, 26$12.51Jan 12, 26$12.91Jan 14, 26$13.61Jan 16, 26$13.93Jan 21, 26$13.97Jan 23, 26$13.72Jan 27, 26$13.86Jan 29, 26$13.83Feb 2, 26$14.03Feb 4, 26$13.79Feb 9, 26$14.23Feb 11, 26$14.63Feb 13, 26$14.44Feb 18, 26$14.58Feb 20, 26$14.58Feb 24, 26$14.47Feb 26, 26$14.89Mar 2, 26$14.07Mar 4, 26$14.07Mar 6, 26$13.56Mar 10, 26$13.93Mar 12, 26$13.18Mar 17, 26$13.89Mar 19, 26$14.06Mar 23, 26$14.23Mar 25, 26$14.93Mar 27, 26$14.61Mar 31, 26$14.49Apr 2, 26$14.42Apr 7, 26$14.33Apr 9, 26$15.03Apr 13, 26$15.02Apr 15, 26$15.16Apr 17, 26$14.70Apr 22, 26$14.51Apr 24, 26$15.10Apr 28, 26$15.76Apr 30, 26$16.35May 4, 26$14.93May 6, 26$15.71May 8, 26$14.95May 12, 26$15.10May 14, 26$15.71May 18, 26$15.11May 20, 26$15.52May 22, 26$15.52May 28, 26$15.07Jun 1, 26$14.31Jun 3, 26$14.46Jun 5, 26$14.28Jun 9, 26$14.80Jun 11, 26$14.65Jun 15, 26$14.77Jun 17, 26$15.11Jun 22, 26$15.32Jun 24, 26$14.76Jun 26, 26$15.61Jul 2, 26$14.31
$8.3652-week range$16.35
Loading valuation history…

Fundamentals

Key fundamentals

$1.2B

Market cap

27.4%

Revenue growth (YoY)

35.6%

Gross margin

$26.3M

Free cash flow (USD)

$31.5M

Net debt

-1.2%

Share dilution

1/5

Graham criteria passed

Defensive-investor screen

Energy

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$471.5MFY 2017$747.8MFY 2018$946.5MFY 2019$820.1MFY 2020$492.6MFY 2021$614.8MFY 2022$193.0MFY 2023$207.6MFY 2024$217.5MFY 2025$277.0M
$471.5M$277M

Free cash flow by year

2016 → 2025

FY 2016$-27.3MFY 2017$7.0MFY 2018$18.3MFY 2019$27.5MFY 2020$40.0MFY 2021$-24.8MFY 2022$-53.3MFY 2023$70.8MFY 2024$-5.4MFY 2025$26.3M
-$27.3M$26.3M

Gross margin by year

2021 → 2025

FY 202113.9%FY 202231.1%FY 202334.9%FY 202435.5%FY 202535.6%
13.9%35.6%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

5

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 1, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Insider sellInsider Sell $123K · 10b5-1 PlanBriggs Lori · VP & President, Ind. Solutions · $122.8KJun 9, 2026Filing
  • Insider sellInsider Sell $2.4M · 10b5-1 PlanLANIGAN MATTHEW · Director, President & CEO · $2.4MJun 5, 2026Filing
  • Insider sellInsider Sell $152K · 10b5-1 PlanBriggs Lori · VP & President, Ind. Solutions · $152.3KJun 3, 2026Filing
  • 8-K eventAnnual Meeting ResultsMay 20, 2026Filing
  • Insider sellInsider Sell $31K · 10b5-1 PlanLewis Michael A · Director · $30.8KMay 19, 2026Filing
  • Quarterly report10-Q FiledMay 1, 2026Filing
  • 8-K eventInvestor PresentationMay 1, 2026Filing
  • 8-K eventEarnings ReleaseApr 30, 2026Filing
  • Insider sellInsider Sell $226K · 10b5-1 PlanPiontek Gregg · Senior Vice President and CFO · $225.7KApr 10, 2026Filing
  • Insider sellInsider Sell $508K · 10b5-1 PlanPiontek Gregg · Senior Vice President and CFO · $507.9KApr 3, 2026Filing

Questions

Frequently asked questions

What is NPK International Inc.'s market cap?

NPK International Inc. (NPKI) has a market capitalization of $1.2B.

What is NPKI's P/E ratio?

NPKI trades at a price-to-earnings ratio of 36.5, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is NPKI's price-to-book (P/B) ratio?

NPKI trades at 3.53 times book value per share.

Are insiders buying NPKI stock?

SEC Form 4 filings show no open-market insider buys at NPK International Inc. in the last 90 days (5 sells).

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Timeline

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News

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Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.