Littelfuse Reports Strong Fourth Quarter Results

Littelfuse, Inc. (NASDAQ: LFUS), a leader in developing smart solutions that enable safe and efficient electrical energy transfer, reported financial results for its fourth quarter ended December 27, 2025:

“I am proud of our teams as we finished the year with significant momentum, delivering fourth quarter results above our guidance range and successfully closing the acquisition of Basler Electric,” said Greg Henderson, Littelfuse President and Chief Executive Officer. “Throughout 2025, we remained disciplined in executing our strategic priorities, which is reflected in our solid full-year revenue growth and margin expansion. Across our segments, we are entering 2026 from a position of strength as we leverage our leadership in safe and efficient electrical energy transfer to accelerate growth, broaden our solutions for an expanding customer base, and drive continued operational enhancements.”

First Quarter of 2026*

“Looking ahead to the first quarter, we expect approximately 15% total revenue growth versus the prior year, supported by our strengthening backlog, deepening customer engagement, and contributions from the Basler acquisition. As our end markets continue to evolve, requiring higher power and energy density solutions, we remain committed to driving technology innovations to help our customers solve increasingly complex challenges. Our focus is on executing our strategic priorities and scaling the company to deliver leading long-term performance and shareholder value.”

Based on current market conditions, for the first quarter, the company expects,

• Net sales in the range of $625 - $645 million, adjusted diluted EPS in the range of $2.70 – $2.90 and an adjusted effective tax rate of 24%

*Littelfuse provides guidance on a non-GAAP (adjusted) basis. GAAP items excluded from guidance may include the after-tax impact of items including acquisition and integration costs, restructuring, impairment and other charges, certain purchase accounting adjustments, non-operating foreign exchange adjustments and significant and unusual items. These items are uncertain, depend on various factors, and could be material to results computed in accordance with GAAP. Littelfuse is not able to forecast the excluded items in order to provide the most directly comparable GAAP financial measure without unreasonable efforts.

Fourth Quarter 2025 Segment Performance Highlights

Electronics Segment

• Net sales for the fourth quarter 2025 increased +21%. Organic sales increased +14% driven by improved passive products (+23% organic) sales. Semiconductor product (+6% organic) sales also contributed to growth, driven by increased protection semiconductor deman,d which more than offset lower power semiconductor volumes. The Dortmund Fab acquisition and favorable FX contributed +4% and +2% to growth, respectively.
• Adjusted EBITDA margin for the fourth quarter 2025 increased to 23.7% (+370 bps) primarily due to strong passive products and protection volume leverage, which more than offset continued soft power semiconductor volumes.
• The fourth quarter 2025 includes a non-cash goodwill impairment charge of $301 million related to the Semiconductor product business, reflecting weaker sales and profitability than original expectations amid persistent soft market conditions.

Transportation Segment

• Net sales for the fourth quarter 2025 increased +1% as favorable FX impact of +2% offset lower organic sales. Organic sales decreased -1% as improved passenger vehicle organic sales (+2% organic) was more than offset by lower commercial vehicle sales (-4% organic). Passenger vehicle strength was driven by solid demand for core passenger car products, more than offsetting lower global passenger car builds and sensor declines in the fourth quarter. Lower commercial vehicle sales reflected the previously disclosed exit of the marine business as well as continued soft on-highway, off-road and agriculture end market demand.
• Adjusted EBITDA margin for the fourth quarter 2025 increased to 16.0% (+830 bps) driven by improved operational execution and a favourable year-over-year comparison against a prior-year cumulative out-of-period adjustment ($11.1 million), which more than offset lower volume and unfavourable mix.

Industrial Segment

• Net sales for the fourth quarter 2025 increased +4%. Organic sales decreased 1% as improved energy storage, utility & grid infrastructure, renewables and data center demand was more than offset by lower HVAC demand. The Basler acquisition and favorable FX also contributed +5% and +1% to growth, respectively.
• Adjusted EBITDA margin for the fourth quarter 2025 was flat at 16.2% as improved productivity and mix as well as a favorable year-over-year comparison against a prior-year cumulative out-of-period adjustment ($4.1 million) was offset by lower volume.

Full Year 2025 Segment Performance Highlights

Electronics Segment

• Net sales for the full year 2025 increased +13%. Organic sales increased +8% driven by improved passive products (+17% organic) sales. Semiconductor product organic sales were flat as improved protection semiconductor demand was offset by lower power semiconductor volumes. The Dortmund Fab acquisition and favorable FX also contributed +4% and +1% to growth, respectively.
• Adjusted EBITDA margin for the full year 2025 increased to 22.9% (+190 bps) primarily due to strong passive products and protection volume leverage, which more than offset continued soft power semiconductor volumes.

Transportation Segment

• Net sales for the full year 2025 increased +1% as favorable FX impact of +1% offset lower organic sales. Organic sales decreased -1% as flat passenger vehicle organic sales was more than offset by lower commercial vehicle sales (-1% organic). Flat full year passenger vehicle sales reflects solid core passenger car products growth offset by sensor declines. Lower commercial vehicle sales reflected soft on-highway, off-road and agriculture end market demand.
• Adjusted EBITDA margin for the full year 2025 increased to 17.7% (+370 bps) driven by improved operational execution and a favourable year-over-year comparison against a prior-year cumulative out-of-period adjustment ($11.1 million), which more than offset lower volume.

Industrial Segment

• Net sales for the full year 2025 increased +10%. Organic sales increased 9% driven by growth from energy storage, renewables, data center and HVAC end markets. The Basler acquisition also contributed +1% to growth.
• Adjusted EBITDA margin for the full year 2025 increased to 19.5% (+220 bps) driven by improved volume leverage and a favorable year-over-year comparison against a prior-year cumulative out-of-period adjustment ($4.1 million).