---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-030892"
form_type: "8-K"
ticker: "LFUS"
cik: "0000889331"
company_name: "LITTELFUSE INC /DE"
filed_at: "2026-05-06T23:59:59+00:00"
generated_at: "2026-05-14T23:05:27.128228+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Littelfuse Q1 net sales $657M (+19% YoY), adj EPS $3.31; guides Q2 sales $690-710M, adj EPS $3.65-3.85

## Summary
- Q1 net sales $657M (+19% YoY, organic +9%); GAAP EPS $2.96, adj EPS $3.31.
- Adj EBITDA margin 22.9% (+280 bps); GAAP op margin 15.4% (+270 bps); free cash flow $66M (+55%).
- Electronics segment sales +18% (organic +15%), margin 25.1%; Industrial sales +45% (incl. Basler), margin 21.9%.
- Q2 guidance: net sales $690-710M, adj EPS $3.65-3.85; reflects continued demand and Basler contribution.
- Dividend $0.75/share payable June 4, 2026 (record May 21); Investor Day May 14.

## SEC filing metadata
- accession: 0001628280-26-030892
- form_type: 8-K
- ticker: LFUS
- cik: 0000889331
- company_name: LITTELFUSE INC /DE
- filed_at: 2026-05-06T23:59:59+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/889331/000162828026030892/0001628280-26-030892-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/889331/000162828026030892/lfus-20260506.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-030892
- JSON: https://secwatch.observer/filing/0001628280-26-030892.json
- Plain text: https://secwatch.observer/filing/0001628280-26-030892.txt

## Key facts
- Earnings Releases
  LITTELFUSE INC /DE reported first quarter ended March 28, 2026 results: revenue Net sales of $657 million, EPS GAAP diluted earnings per share of $2.96.
  - Period: first quarter ended March 28, 2026
  - Revenue: Net sales of $657 million
  - EPS: GAAP diluted earnings per share of $2.96
  - Result: reported results
  source text: Net sales of $657 million, +19%; organic growth contributed +9% • Cash flow from operations of $80 million; free cash flow of $66 million, +55% • GAAP diluted earnings per share of $2.96; Adjusted diluted earnings per share of $3.31
  evidence_url: https://www.sec.gov/Archives/edgar/data/889331/000162828026030892/0001628280-26-030892-index.htm
- Earnings Releases
  LITTELFUSE INC /DE reported second quarter of 2026 results: revenue Net sales in the range of $690 - $710 million, EPS adjusted diluted EPS in the range of $3.65 – $3.85. Guidance initiated.
  - Period: second quarter of 2026
  - Revenue: Net sales in the range of $690 - $710 million
  - EPS: adjusted diluted EPS in the range of $3.65 – $3.85
  - Guidance: initiated
  - Result: guidance update
  source text: Based on current market conditions, for the second quarter the company expects, • Net sales in the range of $690 - $710 million, adjusted diluted EPS in the range of $3.65 – $3.85 and an adjusted effective tax rate of 21% - 22%
  evidence_url: https://www.sec.gov/Archives/edgar/data/889331/000162828026030892/0001628280-26-030892-index.htm

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