NPK International Inc.
NPKI · Services-Miscellaneous Equipment Rental & Leasing · 84.4M shares · -0%/yr ↓ buyback · EDGAR filings ↗
Net buyback after stock comp: $28M (gross $34M, SBC $7M)
Reference price $14.75 · est. market cap ~$1.2B — last insider sale, 2026-06-08 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)
Grade
B78gen composite 69pct→78
Notable findings
- Fund exitedNotable fund(s) exited this quarter: VANGUARD GROUP INC
- Notable holderHeld by 5 notable fund(s): STATE STREET CORP, GOLDMAN SACHS GROUP INC, RENAISSANCE TECHNOLOGIES LLC +2 more (as of 2026-03-31)
Quarterly revenue
Last 4 quarters · from SEC filings.
Key metrics
Gross margin
36.4%
Operating margin
16.9%
Net margin
14.1%
Return on equity
11.1%
Return on assets
8.8%
ROIC
10.0%
Revenue growth (QoQ)
15.9%
Debt / equity
0.0×
Net debt / EBITDA
0.2×
Current ratio
1.4×
Free cash flow
$26M
EBITDA
$72M
Tangible book value
$254M
Cash & investments
$5M
Stock comp / revenue
2.0%
Leadership & compensation
| Name | Role | Latest total comp |
|---|---|---|
| LANIGAN MATTHEW | President & CEO | — |
| Briggs Lori | VP & President, Ind. Solutions | — |
| Fruge Mary Celeste | VP, General Counsel | — |
| Gregg S. PiontekSenior | Officer | $4M FY2025 |
| Lori A. BriggsExecutive | Business Operations | $2M FY2025 |
| M. Celeste FrugéVice | General Counsel, Chief Compliance Officer and Corporate Secretary | $2M FY2025 |
| Matthew S. LaniganPresident and | Officer | $8M FY2025 |
| Piontek Gregg | Senior Vice President and CFO | — |
| WHITE DOUGLAS L | VP, CAO & Treasurer | — |
| Claudia M. Meer | Director | $225K FY2025 |
| Donald W. Young | Director | $81K FY2025 |
| John C. Mingé | Director | $205K FY2025 |
| Joseph A Cutillo | Director | $210K FY2025 |
| Michael A. Lewis | Director | $219K FY2025 |
| MINGE JOHN C | Director | — |
| Roderick A. Larson | Director | $215K FY2025 |
| Rose M. Robeson | Director | $285K FY2025 |
Officers & directors from SEC filings (Form 4 + DEF 14A proxy); compensation is the latest reported fiscal year.
Insider transactions · last 6 months
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| 2026-06-08 | Briggs Lori | Sell | 8.3K | $14.75 |
| 2026-06-03 | LANIGAN MATTHEW | Sell | 167K | $14.43 |
| 2026-06-02 | Briggs Lori | Sell | 10K | $14.58 |
| 2026-06-01 | Fruge Mary Celeste | Tax withheld | 6.8K | $14.31 |
| 2026-06-01 | Fruge Mary Celeste | Option exercise | 17K | — |
| 2026-06-01 | Briggs Lori | Tax withheld | 5.4K | $14.31 |
| 2026-06-01 | Briggs Lori | Tax withheld | 9.6K | $14.31 |
| 2026-06-01 | Briggs Lori | Tax withheld | 6.8K | $14.31 |
| 2026-06-01 | Briggs Lori | Option exercise | 24K | — |
| 2026-06-01 | LANIGAN MATTHEW | Tax withheld | 22K | $14.31 |
| 2026-06-01 | LANIGAN MATTHEW | Tax withheld | 28K | $14.31 |
| 2026-06-01 | LANIGAN MATTHEW | Tax withheld | 39K | $14.31 |
| 2026-06-01 | LANIGAN MATTHEW | Option exercise | 100K | — |
| 2026-06-01 | Piontek Gregg | Tax withheld | 9.0K | $14.31 |
| 2026-06-01 | Piontek Gregg | Tax withheld | 16K | $14.31 |
| 2026-06-01 | Piontek Gregg | Tax withheld | 11K | $14.31 |
| 2026-06-01 | Piontek Gregg | Option exercise | 40K | — |
| 2026-06-01 | Fruge Mary Celeste | Tax withheld | 3.8K | $14.31 |
| 2026-06-01 | Fruge Mary Celeste | Tax withheld | 5.2K | $14.31 |
| 2026-05-20 | LARSON RODERICK A. | Grant | 8.6K | — |
| 2026-05-20 | Meer Claudia Michel | Grant | 8.6K | — |
| 2026-05-20 | MINGE JOHN C | Grant | 8.6K | — |
| 2026-05-20 | CUTILLO JOSEPH A | Grant | 8.6K | — |
| 2026-05-20 | Lewis Michael A | Grant | 8.6K | — |
| 2026-05-20 | ROBESON ROSE M | Grant | 11K | — |
| 2026-05-19 | Fruge Mary Celeste | Grant | 18K | — |
| 2026-05-19 | LANIGAN MATTHEW | Grant | 86K | — |
| 2026-05-19 | Piontek Gregg | Grant | 35K | — |
| 2026-05-19 | Briggs Lori | Grant | 21K | — |
| 2026-05-15 | Lewis Michael A | Sell | 2.0K | $15.30 |
| 2026-04-09 | Piontek Gregg | Sell | 15K | $15.04 |
| 2026-04-01 | Piontek Gregg | Sell | 35K | $14.51 |
| 2026-03-25 | Piontek Gregg | Sell | 15K | $15.03 |
| 2026-03-16 | Fruge Mary Celeste | Option exercise | 1.0K | $4.32 |
| 2026-03-16 | Fruge Mary Celeste | Sell | 1.0K | $13.56 |
| 2026-03-06 | Fruge Mary Celeste | Option exercise | 11K | $4.32 |
| 2026-03-06 | Fruge Mary Celeste | Sell | 11K | $13.34 |
| 2026-03-04 | Piontek Gregg | Option exercise | 74K | $4.32 |
| 2026-03-04 | Piontek Gregg | Sell | 35K | $14.02 |
| 2026-03-04 | Piontek Gregg | Sell | 74K | $14.10 |
| 2026-02-23 | Lewis Michael A | Sell | 2.0K | $14.31 |
All non-derivative Form 4 activity (SEC), newest first.
Notable events (8-K)
| Date | Items | |
|---|---|---|
| 2026-05-20 | Shareholder voteExhibits | filing ↗ |
| 2026-05-01 | Reg FDExhibits | filing ↗ |
| 2026-04-30 | ResultsExhibits | filing ↗ |
| 2026-02-26 | Reg FDExhibits | filing ↗ |
| 2026-02-25 | ResultsExhibits | filing ↗ |
| 2025-11-24 | Material agreementAcquisition/dispositionReg FDExhibits | filing ↗ |
| 2025-11-12 | Exec/director changeExhibits | filing ↗ |
| 2025-10-31 | Reg FDExhibits | filing ↗ |
Recent filings
| Form | Filed | Period | Accession |
|---|---|---|---|
| 8-K | 2026-05-20 | 2026-05-20 | 0000071829-26-000032 ↗ |
| 8-K | 2026-05-01 | 2026-05-01 | 0000071829-26-000030 ↗ |
| 10-Q | 2026-05-01 | 2026-03-31 | 0000071829-26-000028 ↗ |
| 8-K | 2026-04-30 | 2026-04-30 | 0000071829-26-000026 ↗ |
| DEF 14A | 2026-04-09 | 2026-05-20 | 0000071829-26-000017 ↗ |
| 10-K | 2026-02-27 | 2025-12-31 | 0000071829-26-000009 ↗ |
| 8-K | 2026-02-26 | 2026-02-26 | 0000071829-26-000006 ↗ |
| 8-K | 2026-02-25 | 2026-02-25 | 0000071829-26-000004 ↗ |
| 8-K | 2025-11-24 | 2025-11-24 | 0000071829-25-000143 ↗ |
| 8-K | 2025-11-12 | 2025-11-10 | 0000071829-25-000139 ↗ |
| 10-Q | 2025-10-31 | 2025-09-30 | 0000071829-25-000135 ↗ |
| 8-K | 2025-10-31 | 2025-10-31 | 0000071829-25-000137 ↗ |