---
schema_version: "secwatch.filing_event.v1"
accession: "0000071829-26-000004"
form_type: "8-K"
ticker: "NPKI"
cik: "0000071829"
company_name: "NPK International Inc."
filed_at: "2026-02-25T23:59:59+00:00"
generated_at: "2026-05-16T00:33:25.434374+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# NPK International reports Q4 2025 revenue up 31% YoY to $75.2M; EPS $0.13; guides 2026 revenue $305-325M

## Summary
- Q4 revenue $75.2M (+31% YoY); diluted EPS $0.13; adjusted EBITDA $21.7M (+27%).
- Full-year 2025 revenue $277.0M (+27%); adjusted EBITDA $75.5M (+38%).
- Introduced FY2026 guidance: revenue $305-325M, adjusted EBITDA $88-100M (midpoint +14% and +25% YoY).
- Completed Grassform acquisition in Nov 2025 for $42M net of cash; funded with cash and credit facility.
- Repurchased 3M shares (4% of outstanding) at avg $6.70 during 2025.

## SEC filing metadata
- accession: 0000071829-26-000004
- form_type: 8-K
- ticker: NPKI
- cik: 0000071829
- company_name: NPK International Inc.
- filed_at: 2026-02-25T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/71829/000007182926000004/0000071829-26-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/71829/000007182926000004/nr-20260225.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000071829-26-000004
- JSON: https://secwatch.observer/filing/0000071829-26-000004.json
- Plain text: https://secwatch.observer/filing/0000071829-26-000004.txt

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