---
schema_version: "secwatch.filing_event.v1"
accession: "0000889331-22-000004"
form_type: "8-K"
ticker: "LFUS"
cik: "0000889331"
company_name: "LITTELFUSE INC /DE"
filed_at: "2022-02-01T23:59:59+00:00"
generated_at: "2026-06-27T13:18:53.337037+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Littelfuse Q4: sales $553M, EPS $2.08 GAAP/$3.16 adj, Q1 guidance $3.14-$3.30

## Summary
- Q4 net sales $553.1M (+38% total, +23% organic); full year net sales $2.1B (+44%).
- Q4 GAAP diluted EPS $2.08; adjusted diluted EPS $3.16 (benefited from tax holiday ~$0.21).
- Full year GAAP diluted EPS $11.38 (+115% YoY); adjusted diluted EPS $13.19 (+106% YoY).
- Q1 2022 guidance: net sales $563-577M, adj EPS $3.14-$3.30, effective tax rate ~17%.
- Acquisition of Carling Technologies completed Nov 30, 2021; dividend $0.53/share payable March 10, 2022.

## SEC filing metadata
- accession: 0000889331-22-000004
- form_type: 8-K
- ticker: LFUS
- cik: 0000889331
- company_name: LITTELFUSE INC /DE
- filed_at: 2022-02-01T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/889331/000088933122000004/0000889331-22-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/889331/000088933122000004/lfus-20220201.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000889331-22-000004
- JSON: https://secwatch.observer/filing/0000889331-22-000004.json
- Plain text: https://secwatch.observer/filing/0000889331-22-000004.txt

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