---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-003710"
form_type: "8-K"
ticker: "LFUS"
cik: "0000889331"
company_name: "LITTELFUSE INC /DE"
filed_at: "2026-01-28T23:59:59+00:00"
generated_at: "2026-05-16T07:17:08.833837+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Littelfuse Q4 revenue up 12% to $594M; GAAP loss per share ($9.72) on $301M goodwill impairment

## Summary
- Net sales $594M, +12% YoY (+7% organic); adjusted diluted EPS $2.69.
- Recorded $301M non-cash goodwill impairment on Semiconductor Products in Electronics segment.
- Adjusted EBITDA margin 20.5%, +480 bps; Electronics segment adjusted EBITDA margin 23.7%.
- Full year adjusted diluted EPS $10.68, +34% YoY; free cash flow $366M.
- Q1 2026 guidance: net sales $625-645M, adjusted EPS $2.70-$2.90; dividend $0.75/share payable Mar 5.

## SEC filing metadata
- accession: 0001628280-26-003710
- form_type: 8-K
- ticker: LFUS
- cik: 0000889331
- company_name: LITTELFUSE INC /DE
- filed_at: 2026-01-28T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/889331/000162828026003710/0001628280-26-003710-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/889331/000162828026003710/lfus-20260128.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-003710
- JSON: https://secwatch.observer/filing/0001628280-26-003710.json
- Plain text: https://secwatch.observer/filing/0001628280-26-003710.txt

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