---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-004352"
form_type: "8-K"
ticker: "BELFA"
cik: "0000729580"
company_name: "BEL FUSE INC /NJ"
filed_at: "2022-02-24T23:59:59+00:00"
generated_at: "2026-06-27T05:06:31.344861+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Bel Fuse Q4 net sales $147.1M (+26.7% YoY); net earnings $8.0M, more than double Q4-20

## Summary
- Gross profit margin improved to 26.7% from 25.3% in Q4-20.
- Full-year 2021 net sales $543.5M (+16.7%); net earnings $24.8M vs $12.8M.
- Adjusted EBITDA $42.8M for 2021, up 33% YoY; Q4 adjusted EBITDA $15.3M (+96%).
- Backlog of $468M at year-end, over 200% increase from 2020; driven by eMobility, commercial air, industrials.
- Pricing adjustments implemented to offset rising input costs.

## SEC filing metadata
- accession: 0001437749-22-004352
- form_type: 8-K
- ticker: BELFA
- cik: 0000729580
- company_name: BEL FUSE INC /NJ
- filed_at: 2022-02-24T23:59:59+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/729580/000143774922004352/0001437749-22-004352-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/729580/000143774922004352/belfb20211214_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-004352
- JSON: https://secwatch.observer/filing/0001437749-22-004352.json
- Plain text: https://secwatch.observer/filing/0001437749-22-004352.txt

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