R&D expense · 2011–2025
Littelfuse R&D expense
$107M−0.8% · FY2025
Littelfuse (LFUS) reported $107M in R&D expense for fiscal 2025, −0.8% year on year.
| Fiscal year | R&D expense | Change | Filing |
|---|---|---|---|
| FY20252025-12-27 | $107M | −0.8% | Open → |
| FY20242024-12-28 | $108M | +5.2% | Open → |
| FY20232023-12-30 | $102M | +7.1% | Open → |
| FY20222022-12-31 | $95.6M | +45.0% | Open → |
| FY20212022-01-01 | $65.9M | +25.5% | Open → |
| FY20202020-12-26 | $52.5M | −34.3% | Open → |
| FY20192019-12-28 | $80.0M | −8.3% | Open → |
| FY20182018-12-29 | $87.3M | +72.8% | Open → |
| FY20172017-12-30 | $50.5M | +19.6% | Open → |
| FY20162016-12-31 | $42.2M | +37.0% | Open → |
| FY20152016-01-02 | $30.8M | −1.0% | Open → |
| FY20142014-12-27 | $31.1M | +27.5% | Open → |
| FY20132013-12-28 | $24.4M | +15.0% | Open → |
| FY20122012-12-29 | $21.2M | +9.2% | Open → |
| FY20112011-12-31 | $19.4M | — | Open → |
R&D expense — Research and development expense is what the company charged to R&D in the income statement for the year. Most companies report no R&D at all — the line is absent rather than zero — so this ranking covers the roughly 40% of filers that do.
Every row links to its own SEC filing · Fiscal year 2025 · Data as of September 25, 2026 · 2011–2025 compound annual growth +12.9%
R&D expense at companies of similar size
Cite this page
Ready-made references for the figures on this page, as published on September 25, 2026.
Wikipedia
{{cite web |title=Littelfuse R&D expense |url=https://companiesranked.com/en/company/littelfuse/research-and-development-expense |website=CompaniesRanked |date=2026-09-25 |language=en}}APA 7
CompaniesRanked. (September 25, 2026). Littelfuse R&D expense. CompaniesRanked. https://companiesranked.com/en/company/littelfuse/research-and-development-expenseBibTeX
@misc{companiesranked-en-company-littelfuse-research-and-development-expense-2026,
author = {{CompaniesRanked}},
title = {{Littelfuse R\&D expense}},
year = {2026},
howpublished = {\url{https://companiesranked.com/en/company/littelfuse/research-and-development-expense}},
note = {Compiled from SEC EDGAR XBRL filings; data as of 2026-09-25},
urldate = {2026-09-25}
}The filing itself
The numbers above are read from this document: 10-K · 0001628280-26-009585 · February 19, 2026
{{cite web |title=Littelfuse R&D expense — 10-K (0001628280-26-009585) |url=https://www.sec.gov/Archives/edgar/data/889331/000162828026009585/lfus-20251227.htm |website=SEC EDGAR |publisher=U.S. Securities and Exchange Commission |date=2026-02-19}}The figures are rebuilt with every data refresh, so the reference carries the publication date. Add your own access date if your style requires one.