---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-032198"
form_type: "8-K"
ticker: "BELFA"
cik: "0000729580"
company_name: "BEL FUSE INC /NJ"
filed_at: "2025-10-29T23:59:59+00:00"
generated_at: "2026-05-17T01:46:55.300715+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Bel Fuse Q3 sales up 44.8% YoY to $179M; guides Q4 sales $165-180M

## Summary
- GAAP net earnings $22.3M vs $8.1M in Q3-24; adjusted EBITDA $39.2M (21.9% of sales).
- Gross margin 39.7%, up from 36.1% YoY; driven by commercial aerospace, defense, and networking rebound.
- Q4-25 guidance: net sales $165-180M, gross margin 37-39%, citing normal holiday seasonality.
- Recorded $1.6M gain on sale of Zhongshan, PRC building during the quarter.

## SEC filing metadata
- accession: 0001437749-25-032198
- form_type: 8-K
- ticker: BELFA
- cik: 0000729580
- company_name: BEL FUSE INC /NJ
- filed_at: 2025-10-29T23:59:59+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/729580/000143774925032198/0001437749-25-032198-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/729580/000143774925032198/belfb20250802_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-032198
- JSON: https://secwatch.observer/filing/0001437749-25-032198.json
- Plain text: https://secwatch.observer/filing/0001437749-25-032198.txt

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