Quarterly Revenue Growth
Q4 revenue of $594 million, up 12% year-over-year and up 7% organically; acquisitions (Dortmund and Basler) contributed ~3% and FX was a ~2% tailwind.
Margin Expansion and Profitability
Q4 adjusted EBITDA margin improved to 20.5%, up 180 basis points year-over-year; full-year 2025 adjusted EBITDA margin expanded 260 basis points to 20.9%.
Earnings and Cash Generation
Q4 adjusted diluted earnings were $2.69; operating cash flow was $139 million and free cash flow was $120 million in the quarter; full-year free cash flow grew 26% and management targets >100% free cash flow conversion in 2026.
Strong Balance Sheet and Capital Return
Ended Q4 with $563 million cash on hand and net debt-to-EBITDA leverage of 1.2x; returned $19 million to shareholders via dividend in the quarter.
Bookings and Backlog Momentum
Fourth-quarter bookings were up more than 20% versus prior year (book-to-bill >1), supporting management's expectation of double-digit Q1 revenue growth and strong 2026 momentum.
Data Center Momentum and Design Wins
Data center business grew double-digits in Q4; 2025 data center design wins more than doubled year-over-year; secured a significant design win for a 2-megawatt static transfer switch (shipments starting in 2026) that increases power density by ~20%.
Electronics Segment Outperformance
Electronics product segment sales increased 21% in the quarter with adjusted EBITDA margin of 23.7% (up 170 basis points); full-year electronics sales rose 13% with margin expansion of 190 basis points.
Basler Acquisition and Expected Synergies
Closed acquisition of Basler Electric in December; expected 2026 contribution of $130–$135 million revenue and $0.10–$0.15 of adjusted EPS, with Basler projected to deliver a high-teens adjusted EBITDA margin and to expand Littelfuse's high-power and grid/data center capabilities.