---
schema_version: "secwatch.filing_event.v1"
accession: "0000071829-25-000003"
form_type: "8-K"
ticker: "NPKI"
cik: "0000071829"
company_name: "NPK International Inc."
filed_at: "2025-02-26T23:59:59+00:00"
generated_at: "2026-05-26T04:03:36.099017+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# NPK Q4 revenue $57.5M (+24% YoY), record rental revenue; guides 2025 revenue +10% growth

## Summary
- Q4 revenue $57.5M (+24% YoY), operating income $11.6M, adjusted EBITDA $17.1M (+35%).
- Full year revenue $217.5M (+5%), adjusted EBITDA $54.9M (+12%), margin 25.2%.
- Q4 rental revenue record $42M; gross margin 39.2% (+490 bps YoY) – two-year high.
- Guides FY2025: revenue growth ~10%, adjusted EBITDA growth ~18% at midpoint; capex $35-40M.
- No share repurchases in 2024 despite $50M auth. due to blackout; net cash positive with $18M cash, $8M debt.

## SEC filing metadata
- accession: 0000071829-25-000003
- form_type: 8-K
- ticker: NPKI
- cik: 0000071829
- company_name: NPK International Inc.
- filed_at: 2025-02-26T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/71829/000007182925000003/0000071829-25-000003-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/71829/000007182925000003/nr-20250226.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000071829-25-000003
- JSON: https://secwatch.observer/filing/0000071829-25-000003.json
- Plain text: https://secwatch.observer/filing/0000071829-25-000003.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.