Form 8-K

8-K — LITTELFUSE INC /DE

Accession: 0001628280-26-030892

Filed: 2026-05-06

Period: 2026-05-06

CIK: 0000889331

SIC: 3613 (SWITCHGEAR & SWITCHBOARD APPARATUS)

Item: Results of Operations and Financial Condition

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — lfus-20260506.htm (Primary)

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8-K

8-K (Primary)

Filename: lfus-20260506.htm · Sequence: 1

lfus-20260506

0000889331falseLITTELFUSE INC /DE00008893312026-05-062026-05-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20579

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report: May 6, 2026

(Date of earliest event reported)

LITTELFUSE, INC.

(Exact name of registrant as specified in its charter)

Delaware 0-20388 36-3795742

(State of other jurisdiction

of incorporation) (Commission

File Number) (IRS Employer

Identification No.)

6133 North River Road, Suite 500, Rosemont, IL 60018

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (773) 628-1000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class Trading Symbol Name of exchange on which registered

Common Stock, par value $0.01 per share LFUS NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition

The information contained within Item 2.02 of this Form 8-K and the Exhibits attached hereto shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

On May 6, 2026, Littelfuse, Inc. (the “Company”) issued a press release announcing the results of its operations for the quarter ended March 28, 2026. A copy of the press release is attached as Exhibit 99.1 to this Form 8-K and incorporated by reference to this Item 2.02 as if fully set forth herein. A copy of the press release will also be available on the Company’s website.

Item 7.01 Regulation FD Disclosure

To supplement the information in the attached press release, the Company has also prepared a presentation, which will be available on the Company’s website at https://investor.littelfuse.com/events-and-presentations and is attached hereto as Exhibit 99.2 to this Current Report on Form 8-K.

The information contained in the press release and investor presentation attached to this Form 8-K includes forward-looking statements that are intended to be covered by the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include but are not limited to comments with respect to the objectives and strategies, financial condition, results of operations and business of the Company. These forward-looking statements involve numerous assumptions, inherent risks and uncertainties, both general and specific, and the risk that predictions and other forward-looking statements will not be achieved. The Company cautions you not to place undue reliance on these forward-looking statements as a number of important factors could cause actual future results to differ materially from the plans, objectives, expectations, estimates and intentions expressed in such forward-looking statements.

A copy of the press release is also posted on the Company's website.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

The following exhibits are furnished with this Form 8-K:

99.1 Press Release dated May 6, 2026

99.2 Littelfuse Presentation dated May 6, 2026

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Littelfuse, Inc.

Date: May 6, 2026

By: /s/ Abhishek Khandelwal

Abhishek Khandelwal

Executive Vice President and Chief Financial Officer

EX-99.1

Filename: q12026earningsreleaseex991.htm · Sequence: 2

Document

Exhibit 99.1

FOR IMMEDIATE RELEASE

David Kelley

224-727-2535

dkelley@littelfuse.com

LITTELFUSE REPORTS FIRST QUARTER RESULTS FOR 2026

First Quarter 2026 Highlights:

(Year-over-year comparisons unless otherwise noted)

•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

•GAAP operating margin of 15.4%, +270 bps; Adjusted EBITDA margin of 22.9%, +280 bps

CHICAGO, May 6, 2026 - Littelfuse, Inc. (NASDAQ: LFUS), a leader in developing smart solutions that enable safe and efficient electrical energy transfer, today reported financial results for the first quarter ended March 28, 2026:

“Our teams delivered a strong start to the year, with first quarter results exceeding our expectations,” said Greg Henderson, Littelfuse President and Chief Executive Officer. “We capitalized on solid market demand and executed well on our strategic priorities while leveraging our leadership in safe and efficient electrical energy transfer. Across all segments, we delivered growth and margin expansion, and we remain focused on driving growth opportunities, broadening our solutions portfolio, and advancing our operational excellence initiatives.”

Second Quarter of 2026*

“Looking ahead to the second quarter, we expect approximately 14% total revenue growth versus the prior year, supported by a strong backlog, continued customer momentum, and contributions from the Basler acquisition. Demand strength remains broad based, and we continue to partner closely with our customers to drive the ongoing evolution to higher power and higher energy density solutions.”

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%

-more-

Page 2

*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.

May 14, 2026 Investor Day

The Company will host an Investor Day in New York City on Thursday, May 14, 2026. Greg Henderson, President and CEO, Abhi Khandelwal, Executive Vice President and CFO, and other members of the executive leadership team will present an in-depth review of the company’s business strategy, growth drivers, and financial objectives. The event will also feature interactive Q&A sessions.

Presentations are expected to begin at 9:00 a.m. ET and conclude at 12:00 p.m. ET.

The live webcast, as well as the presentation materials, will be available to the public on the day of the event via the Investor Relations section of Littelfuse.com. The webcast replay will be available within 24 hours of the event and will be archived for 12 months.

First Quarter 2026 Segment Performance Highlights

Electronics Segment

•Net sales for the first quarter 2026 increased +18%. Organic sales increased +15% driven by improved passive products (+22% organic) sales. Semiconductor product (+8% organic) sales also contributed to growth driven by increased protection semiconductor volumes which more than offset lower power semiconductor sales. Favorable FX contributed +3% to growth.

•Adjusted EBITDA margin for the first quarter 2026 increased to 25.1% (+300 bps) primarily due to strong passive products and protection volume leverage.

Transportation Segment

•Net sales for the first quarter 2026 increased +5% as organic sales increased +1% while favorable FX contributed +4% to growth. Organic sales growth benefited from improved passenger vehicle organic sales (+4% organic) and favorable pricing, which offset lower commercial vehicle sales (-1% organic). Passenger vehicle strength was driven by content expansion, more than offsetting lower global passenger car builds and sensor declines in the first quarter. Lower commercial vehicle organic sales reflected the previously disclosed exit of the marine business.

•Adjusted EBITDA margin for the first quarter 2026 increased to 19.1% (+200 bps) driven by volume leverage and operational execution.

-more-

Page 3

Industrial Segment

•Net sales for the first quarter 2026 increased +45%. Organic sales increased +5% as improved grid & utility infrastructure and data center demand, along with favorable pricing, more than offset lower HVAC demand. The Basler acquisition and favorable FX also contributed +39% and +1% to growth, respectively.

•Adjusted EBITDA margin for the first quarter 2026 increased to 21.9% (+340 bps) driven by favorable volume leverage and mix.

Dividend

•The company will pay a cash dividend on its common stock of $0.75 per share on June 4, 2026, to shareholders of record as of May 21, 2026.

Conference Call and Webcast Information

Littelfuse will host a conference call on Wednesday, May 6, 2026, at 8:00 a.m. Central Time to discuss the results. The call will be broadcast and available for replay at Littelfuse.com. A slide presentation is available in the Investor Relations section of the company’s website at Littelfuse.com.

About Littelfuse

Littelfuse, Inc. (NASDAQ: LFUS) is a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 17,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation and electronics end markets – everywhere, every day. Learn more at Littelfuse.com.

-more-

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“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995

The statements in this press release that are not historical facts are intended to constitute "forward-looking statements" entitled to the safe-harbor provisions of the Private Securities Litigation Reform Act. Such statements are based on Littelfuse, Inc.’s (“Littelfuse” or the “Company”) current expectations and are subject to a number of factors and uncertainties, which could cause actual results to differ materially from those described in the forward-looking statements. These risks, uncertainties and other factors include, but are not limited to, risks and uncertainties relating to general economic conditions; product demand and market acceptance; economic conditions; the impact of competitive products and pricing; product quality problems or product recalls; capacity and supply difficulties or constraints; coal mining exposures reserves; cybersecurity matters; failure of an indemnification for environmental liability; changes in import and export duty and tariff rates; exchange rate fluctuations; commodity price fluctuations; the effect of the Company's accounting policies; labor disputes and shortages; restructuring costs in excess of expectations; pension plan asset returns less than assumed; uncertainties related to political or regulatory changes; integration of acquisitions may not be achieved in a timely manner, or at all; limited realization of the expected benefits from investment and strategic plans; the risk that expected benefits, synergies and growth prospects of the transaction with Basler may not be achieved in a timely manner, or at all; and other risks which may be detailed in the company's Securities and Exchange Commission filings. Should one or more of these risks or uncertainties materialize or should the underlying assumptions prove incorrect, actual results and outcomes may differ materially from those indicated or implied in the forward-looking statements. This release should be read in conjunction with information provided in the financial statements appearing in the company's Annual Report on Form 10-K for the year ended December 27, 2025.

Further discussion of the risk factors of the company can be found under the caption "Risk Factors" in the company's Annual Report on Form 10-K for the year ended December 27, 2025, and in other filings and submissions with the SEC, each of which are available free of charge on the company’s investor relations website at investor.littelfuse.com and on the SEC’s website at www.sec.gov. These forward-looking statements are made as of the date hereof. The company does not undertake any obligation to update, amend or clarify these forward-looking statements to reflect events or circumstances after the date hereof or to reflect the availability of new information.

-more-

Page 5

Non-GAAP Financial Measures

The information included in this press release and other materials filed with the SEC may include non-GAAP financial measures including organic net sales (decline) growth, adjusted operating income, adjusted operating margin, adjusted EBITDA, adjusted EBITDA margin, adjusted diluted earnings per share, adjusted income taxes, adjusted effective tax rate, free cash flow, net debt, consolidated EBITDA, and consolidated net leverage ratio (as defined in the credit agreement). Many of these non-GAAP financial measures exclude the effect of certain expenses and income not related directly to the underlying performance of our fundamental business operations. A reconciliation of these non-GAAP financial measures to the most directly comparable GAAP financial measures is set forth in the attached schedules. The company believes that organic net sales (decline) growth, adjusted operating income, adjusted operating margin, adjusted EBITDA, adjusted EBITDA margin, adjusted diluted earnings per share, adjusted income taxes, and adjusted effective tax rate provide useful information to investors regarding its operational performance because they enhance an investor’s overall understanding of the company’s core financial performance and facilitate comparisons to historical results of operations, by excluding items that are not related directly to the underlying performance of its fundamental business operations or were not part of the company’s business operations during a comparable period. The company believes that free cash flow is a useful measure of its ability to generate cash. The company believes that net debt, consolidated EBITDA, and consolidated net leverage ratio are useful measures of its credit position. The company believes that all of these non-GAAP financial measures are commonly used by financial analysts and others in the industries in which we operate, and thus further provide useful information to investors. Management additionally uses these measures when assessing the performance of the business and for business planning purposes. Note that the company’s definitions of these non-GAAP financial measures may differ from those terms as defined or used by other companies.

LFUS-F

###

Littelfuse Inc.

6133 North River Road, Suite 500

Rosemont, Illinois 60018

p: (773) 628-1000

www.littelfuse.com

Page 5

LITTELFUSE, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

(in thousands, except share and per share data) March 28,

2026 December 27,

2025

ASSETS

Current assets:

Cash and cash equivalents $ 481,697 $ 563,391

Short-term investments 279 287

Trade receivables, less allowances of $79,896 and $77,073 at March 28, 2026 and December 27, 2025, respectively

380,963 363,215

Inventories 418,922 416,472

Prepaid income taxes and income taxes receivable 5,240 6,137

Prepaid expenses and other current assets 89,135 85,832

Total current assets 1,376,236 1,435,334

Net property, plant, and equipment 533,528 540,640

Intangible assets, net of amortization 570,025 594,907

Goodwill 1,209,792 1,211,411

Investments 19,524 20,010

Deferred income taxes 5,471 5,255

Right of use lease assets 82,520 86,263

Other long-term assets 60,455 62,976

Total assets $ 3,857,551 $ 3,956,796

LIABILITIES AND EQUITY

Current liabilities:

Accounts payable $ 222,666 $ 211,079

Accrued liabilities 170,787 199,271

Accrued income taxes 33,354 26,186

Current portion of long-term debt 100,483 96,233

Total current liabilities 527,290 532,769

Long-term debt, less current portion 531,049 706,394

Deferred income taxes 101,612 102,335

Accrued post-retirement benefits 39,084 38,733

Non-current lease liabilities 69,122 71,765

Other long-term liabilities 75,330 78,766

Total equity 2,514,064 2,426,034

Total liabilities and equity $ 3,857,551 $ 3,956,796

Page 6

LITTELFUSE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

Three Months Ended

(in thousands, except per share data) March 28,

2026 March 29,

2025

Net sales $ 656,969 $ 554,307

Cost of sales 402,820 347,051

Gross profit 254,149 207,256

Selling, general, and administrative expenses 99,325 87,708

Research and development expenses 29,737 26,048

Amortization of intangibles 16,500 14,331

Restructuring, impairment, and other charges 7,422 9,019

Total operating expenses 152,984 137,106

Operating income 101,165 70,150

Interest expense 6,977 8,875

Foreign exchange (gain) loss (2,413) 4,843

Other income, net (130) (3,515)

Income before income taxes 96,731 59,947

Income taxes 21,584 16,376

Net income $ 75,147 $ 43,571

Earnings per share:

Basic $ 3.00 $ 1.76

Diluted $ 2.96 $ 1.75

Weighted-average shares and equivalent shares outstanding:

Basic 25,074 24,767

Diluted 25,420 24,963

Comprehensive income $ 55,973 $ 81,168

Page 7

LITTELFUSE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

Three Months Ended

(in thousands) March 28, 2026 March 29, 2025

OPERATING ACTIVITIES

Net income $ 75,147 $ 43,571

Adjustments to reconcile net income to net cash provided by operating activities: 42,614 37,658

Changes in operating assets and liabilities:

Trade receivables (21,783) (14,745)

Inventories (6,740) 8,699

Accounts payable 8,567 (8,772)

Accrued liabilities and income taxes (19,802) (8,044)

Prepaid expenses and other assets 2,255 7,391

Net cash provided by operating activities 80,258 65,758

INVESTING ACTIVITIES

Acquisitions of businesses, net of cash acquired (2,508) (57,417)

Purchases of property, plant, and equipment (14,094) (23,102)

Net proceeds from sale of property, plant and equipment, and other 31 11

Net cash used in investing activities (16,571) (80,508)

FINANCING ACTIVITIES

Net payments of credit facility (166,250) (53,750)

Repurchases of common stock — (27,374)

Cash dividends paid (18,836) (17,335)

All other cash provided by financing activities 42,430 1,425

Net cash used in financing activities (142,656) (97,034)

Effect of exchange rate changes on cash, cash equivalents, and restricted cash (2,762) 5,603

Decrease in cash, cash equivalents, and restricted cash (81,731) (106,181)

Cash, cash equivalents, and restricted cash at beginning of period 565,104 726,437

Cash, cash equivalents, and restricted cash at end of period $ 483,373 $ 620,256

Page 8

LITTELFUSE, INC.

NET SALES AND OPERATING INCOME BY SEGMENT

(Unaudited)

First Quarter

(in thousands) 2026 2025 %

Growth

Net sales

Electronics $ 362,775 $ 307,249 18.1 %

Transportation 170,381 161,862 5.3 %

Industrial 123,813 85,196 45.3 %

Total net sales $ 656,969 $ 554,307 18.5 %

Operating income

Electronics $ 70,279 $ 46,766 50.3 %

Transportation 24,103 18,917 27.4 %

Industrial 20,761 13,074 58.8 %

Other (a) (13,978) (8,607) N.M.

Total operating income $ 101,165 $ 70,150 44.2 %

Operating Margin 15.4 % 12.7 %

Interest expense 6,977 8,875

Foreign exchange (gain) loss (2,413) 4,843

Other income, net (130) (3,515)

Income before income taxes $ 96,731 $ 59,947 61.4 %

(a) "Other" typically includes non-GAAP adjustments such as acquisition-related and integration costs, purchase accounting inventory adjustments, and restructuring and impairment charges. See Supplemental Financial Information for details.

N.M. - Not meaningful

First Quarter

(in thousands) 2026 2025 %

Growth

Operating Margin

Electronics 19.4 % 15.2 % 4.2 %

Transportation 14.1 % 11.7 % 2.4 %

Industrial 16.8 % 15.3 % 1.5 %

Page 9

LITTELFUSE, INC.

SUPPLEMENTAL FINANCIAL INFORMATION

(In millions of USD except per share amounts - unaudited)

Non-GAAP EPS reconciliation

Q1-26 Q1-25

GAAP diluted EPS $ 2.96 $ 1.75

EPS impact of Non-GAAP adjustments (below) 0.35 0.44

Adjusted diluted EPS $ 3.31 $ 2.19

Non-GAAP adjustments - expense / (income)

Q1-26 Q1-25

Acquisition-related and integration costs (a) $ 1.2 $ 0.1

Purchase accounting inventory adjustments (b) 5.4 (0.5)

Restructuring, impairment and other charges (c) 7.4 9.0

Non-GAAP adjustments to operating income 14.0 8.6

Other income, net (d) 2.7 —

Non-operating foreign exchange (gain) loss (2.4) 4.8

Non-GAAP adjustments to income before income taxes 14.3 13.4

Income taxes (e) 5.3 2.3

Non-GAAP adjustments to net income $ 9.0 $ 11.1

Total EPS impact $ 0.35 $ 0.44

Adjusted operating margin / Adjusted EBITDA reconciliation

Q1-26 Q1-25

Net income $ 75.1 $ 43.6

Add:

Income taxes 21.6 16.4

Interest expense 7.0 8.9

Foreign exchange (gain) loss (2.4) 4.8

Other income, net (0.1) (3.5)

GAAP operating income $ 101.2 $ 70.2

Non-GAAP adjustments to operating income 14.0 8.6

Adjusted operating income $ 115.1 $ 78.8

Amortization of intangibles 16.5 14.3

Depreciation expense 19.0 18.4

Adjusted EBITDA $ 150.6 $ 111.5

Net sales $ 657.0 $ 554.3

Net income as a percentage of net sales 11.4 % 7.9 %

Operating margin 15.4 % 12.7 %

Adjusted operating margin 17.5 % 14.2 %

Adjusted EBITDA margin 22.9 % 20.1 %

Page 10

Adjusted EBITDA by Segment Q1-26 Q1-25

Electronics Transportation Industrial Electronics Transportation Industrial

GAAP operating income $ 70.3 $ 24.1 $ 20.8 $ 46.8 $ 18.9 $ 13.1

Add:

Add back amortization 9.0 3.4 4.1 9.8 3.3 1.2

Add back depreciation 11.8 5.0 2.2 11.4 5.5 1.5

Adjusted EBITDA $ 91.0 $ 32.5 $ 27.1 $ 68.0 $ 27.7 $ 15.8

Adjusted EBITDA Margin 25.1 % 19.1 % 21.9 % 22.1 % 17.1 % 18.5 %

Net sales reconciliation Q1-26 vs. Q1-25

Electronics Transportation Industrial Total

Net sales growth 18 % 5 % 45 % 19 %

Less:

Acquisitions — % — % 39 % 6 %

FX impact 3 % 4 % 1 % 3 %

Organic net sales growth 15 % 1 % 5 % 9 %

Electronics segment net sales reconciliation Q1-26 vs. Q1-25

Electronics - Passive Products and Sensors Electronics - Semiconductor Total Electronics

Net sales growth 26 % 11 % 18 %

Less:

FX impact 4 % 3 % 3 %

Organic net sales growth 22 % 8 % 15 %

Transportation segment net sales reconciliation Q1-26 vs. Q1-25

Commercial Vehicle Products Passenger Car Products (1) Auto Sensor Products (1) Total Transportation

Net sales growth 1 % 10 % 1 % 5 %

Less:

FX impact 2 % 4 % 8 % 4 %

Organic net sales (decline) growth (1) % 6 % (7) % 1 %

(1) Passenger vehicle business (PVB) includes passenger car and auto sensor products.

Income tax reconciliation

Q1-26 Q1-25

Income taxes $ 21.6 $ 16.4

Effective rate 22.3 % 27.3 %

Non-GAAP adjustments - income taxes 5.3 2.3

Adjusted income taxes $ 26.9 $ 18.7

Adjusted effective rate 24.2 % 25.5 %

Free cash flow reconciliation

Q1-26 Q1-25

Net cash provided by operating activities $ 80.3 $ 65.8

Less: Purchases of property, plant, and equipment (14.1) (23.1)

Free cash flow $ 66.2 $ 42.7

Page 11

Consolidated Total Debt

As of March 28, 2026

Consolidated total debt $ 631.5

Unamortized debt issuance costs 3.5

Finance lease liability 0.2

Consolidated funded indebtedness 635.2

Cash held in U.S. (up to $400 million) 67.6

Net debt $ 567.6

Consolidated EBITDA

Twelve Months Ended March 28, 2026

Net Loss $ (40.3)

Interest expense 32.4

Income taxes 80.5

Depreciation expense 75.4

Amortization expense 62.0

Non-cash additions:

Stock-based compensation expense 28.1

Purchase accounting inventory step-up charge 6.4

Unrealized loss on investments 2.1

Impairment charges 301.9

Other 34.1

Consolidated EBITDA (1) $ 582.6

Consolidated Net Leverage Ratio (as defined in the Credit Agreement) * 1.0x

* Our Credit Agreement and Private Placement Note with maturities ranging from 2027 to 2031, contain financial ratio covenants providing that if, as of the last day of each fiscal quarter, the Consolidated Net Leverage ratio at such time for the then most recently concluded period of four consecutive fiscal quarters of the Company exceeds 3.50:1.00, an Event of Default (as defined in the Credit Agreement and Private Placement Senior Notes) is triggered.

The Credit Agreement was amended in Q1 2026 and now allows to add restructuring charges and business optimization expenses in addition to the prior credit agreement.

(1) Represents Consolidated EBITDA as defined in our Credit Agreement and Private Placement Senior Notes and is calculated using the most recently concluded period of four consecutive quarters.

Note: Total will not always foot due to rounding.

(a) Reflected in selling, general and administrative expenses ("SG&A").

(b) Reflected in cost of sales.

(d) 2026 included the reversal of an indemnification receivable of $2.7 million related to lapses in the statute of limitations for previously unrecognized tax benefits recognized in the first quarter of 2026.

(e) Reflected the tax impact associated with the non-GAAP adjustments including $2.7 million of tax benefits due to lapses in the statute of limitations for previously unrecognized tax benefits recognized in the first quarter of 2026.

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EX-99.2

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q12026slide

Q1 2026 Earnings Release May 6, 2026

2Littelfuse, Inc. © 2026 DISCLAIMERS Important Information About Littelfuse, Inc. This presentation does not constitute or form part of, and should not be construed as, an offer or solicitation to purchase or sell securities of Littelfuse, Inc. and no investment decision should be made based upon the information provided herein. Littelfuse strongly urges you to review its filings with the Securities and Exchange Commission, which can be found at investor.littelfuse.com. This website also provides additional information about Littelfuse. “Safe Harbor” Statement Under the Private Securities Litigation Reform Act of 1995. These risks, uncertainties and other factors include, but are not limited to, risks and uncertainties relating to general economic conditions; product demand and market acceptance; economic conditions; the impact of competitive products and pricing; product quality problems or product recalls; capacity and supply difficulties or constraints; coal mining exposures reserves; cybersecurity matters; failure of an indemnification for environmental liability; changes in import and export duty and tariff rates; exchange rate fluctuations; commodity price fluctuations; the effect of the Company's accounting policies; labor disputes and shortages; restructuring costs in excess of expectations; pension plan asset returns less than assumed; uncertainties related to political or regulatory changes; integration of acquisitions may not be achieved in a timely manner, or at all; limited realization of the expected benefits from investment and strategic plans; the risk that expected benefits, synergies and growth prospects of the Basler acquisition may not be achieved in a timely manner, or at all; the risk that Basler’s business may not be successfully integrated with Littelfuse business and / or future acquisitions. Should one or more of these risks or uncertainties materialize or should the underlying assumptions prove incorrect, actual results and outcomes may differ materially from those indicated or implied in the forward-looking statements. This presentation should be read in conjunction with information provided in the financial statements appearing in the company's Annual Report on Form 10-K for the year ended December 27, 2025. Further discussion of the risk factors of the company can be found under the caption "Risk Factors" in the company's Annual Report on Form 10-K for the year ended December 27, 2025, and in other filings and submissions with the SEC, each of which are available free of charge on the company’s investor relations website at investor.littelfuse.com and on the SEC’s website at http://www.sec.gov. These forward-looking statements are made as of the date hereof. The company does not undertake any obligation to update, amend or clarify these forward-looking statements to reflect events or circumstances after the date hereof or to reflect the availability of new information. Non-GAAP Financial Measures. The information included in this presentation includes the non-GAAP financial measures of organic net sales growth, adjusted operating margin, adjusted EBITDA margin, adjusted diluted earnings per share, adjusted effective tax rate, free cash flow conversion, and consolidated net leverage ratio (as defined in the credit agreement). A reconciliation of these non-GAAP financial measures to the most directly comparable GAAP financial measures are set forth in the appendix. The company believes that these non-GAAP financial measures provide useful information to investors regarding its operational performance, ability to generate cash and its credit position enhancing an investor’s overall understanding of its core financial performance. The company believes that free cash flow is a useful measure of its ability to generate cash. The company believes that these non-GAAP financial measures are commonly used by financial analysts and provide useful information to analysts. Management uses these measures when assessing the performance of the business and for business planning purposes. Note that the definitions of these non-GAAP financial measures may differ from those terms as defined or used by other companies.

4INVESTOR DAY 2026 INVESTOR DAY PREVIEW – MAY 14 AGENDA Moving the World Forward in Transportation & Logistics (T&L) Dave Ruppel | SVP & GM, T&L Market Accelerating Long-Term Growth through Semiconductor Innovation Dr. Karim Hamed | SVP & GM, Semiconductor Products Delivering More Resilient Growth and Scaling Operational Excellence to Drive Strong Shareholder Value Abhi Khandelwal | EVP & CFO Closing Remarks: The Leader in Safe and Efficient Electrical Energy Transfer Greg Henderson | President & CEO Welcome and Opening Remarks David Kelley | VP, Investor Relations Delivering on the Promise and Potential of a New Littelfuse Greg Henderson | President & CEO Building a Brighter Global Future through Energy & Industrial Infrastructure (EII) Peter Kim | SVP & GM, EII Market Strengthening Our Leadership Position in Computing, Communications, and Diversified Industrials (CCDI) Deepak Nayar | SVP & GM, CCDI Market BREAK10:25 AM Q&A SESSION11:30 AM LEADERSHIP LUNCHEON12:00 PM 9:00 AM 10:35 AM

5Littelfuse, Inc. © 2026 STRATEGIC PRIORITIES Enhance our Focus to Capitalize on Future Growth Opportunities Provide More Complete Solutions for a Broader Set of Customers Drive Further Operational Excellence to Amplify Long-Term Performance  More structured evaluation of secular growth opportunities  Better leverage teams & technology leadership  Expand higher voltage & energy density application opportunities  More collaborative approach across businesses  Further align technology capabilities and sales structure  Enhance customer support for next gen product development  Better leverage operating practices across businesses  Further optimize operating structure for scale  Enhance long-term profitability 01 02 03

6Littelfuse, Inc. © 2026 WHY LITTELFUSE WINS Enabling Long-Term Growth Opportunities Core Market Leadership  A market leader in enabling safe and efficient electrical energy transfer  Global scale and engineering expertise  Customer partnerships with leading innovators across broad end market exposures Broad Multi-Technology Product Offering  Core circuit protection leadership augmented by high value-add power semiconductor, switching and sensing capabilities  Meaningful brand equity across product lines  Providing more complete solutions for a broad set of customers Trusted and Essential Expertise  Seasoned global teams embedded with our customers  Solving increasingly challenging specifications to enable secular growth trends  Driving improved power efficiency and safety  Partnering with customers to architect next-gen solutions OUR VALUE PROPOSITION

7Littelfuse, Inc. © 2026 Q1 2026 FINANCIAL SUMMARY Revenue and EPS exceeded the high end of our guidance range01 Q1 Adj. EBITDA Margin of 22.9%, +280 bps vs. PY, reflecting volume leverage and operational execution02 Continued strong cash generation with Q1 FCF of $66 million, +55% vs. PY03 We are executing on our strategic priorities with a goal to scale our business for long-term growth and outperformance04

8Littelfuse, Inc. © 2026 Q1 2026 TOTAL COMPANY  Revenue +19% reported and +9% organic vs. PY  Note +6% from Basler acquisition and +3% from FX  Adj. EBITDA Margin of 22.9%, +280 bps vs. PY  GAAP diluted EPS of $2.96  Adj. EPS of $3.31, +51% vs. PY  Q1 Op cash flow $80m; FCF of $66m, +55% vs. PY FINANCIAL PERFORMANCE GAAP EPS $2.96 $1.75 Adj. EPS $3.31 $2.19 Adj. EBITDA% 22.9% 20.1% $657 $554 Q1-26 Q1-25 Revenue See appendix for GAAP to non-GAAP reconciliation

9Littelfuse, Inc. © 2026 $2.19 $1.16 $(0.04) $3.31 Q1 2025 Volume & Leverage Other Q1 2026 $554 Q1 2025 Organic Growth Basler FX Q1 2026 Q1 2026 SALES & ADJ. EPS BRIDGE (in millions) See appendix for GAAP to non-GAAP reconciliation Yr/Yr Sales Bridge 9% 6% 3% Yr/Yr Adj. EPS Bridge Note Other includes higher stock & variable compensation, lower adj. effective tax rate, higher diluted share count, & impact of other non-operating expenses $657 +38% Yr/Yr* Adj. EBITDA Conversion

10Littelfuse, Inc. © 2026 Q1 2026 ELECTRONICS SEGMENT  Revenue +18% reported and +15% organic vs. PY  Passive products +22% organic  Semiconductors +8% organic  +3% from FX  Continued strong Passive & Protection Product orders driven by strong data center and diversified industrials demand  Q1 Adj. EBITDA margin 25.1%, +300 bps vs PY  Passive Products & Protection volume leverage & execution FINANCIAL PERFORMANCE Op Margin 19.4% 15.2% Adj. EBITDA% 25.1% 22.1% $363 $307 Q1-26 Q1-25 Revenue (in millions) See appendix for GAAP to non-GAAP reconciliation

11Littelfuse, Inc. © 2026 Q1 2026 TRANSPORTATION SEGMENT  Revenue +5% reported and +1% organic vs. PY  +4% FX benefit  Passenger vehicle +4% organic  Content expansion, market share gains & favorable pricing amid lower yr/yr global passenger vehicle production  Commercial vehicle -1% organic  -1% impact related to the exit of the marine business  Q1 Adj. EBITDA margin 19.1%, +200 bps vs PY  Operational execution & productivity initiatives FINANCIAL PERFORMANCE Op Margin 14.1% 11.7% Adj. EBITDA% 19.1% 17.1% $170 $162 Q1-26 Q1-25 Revenue (in millions) See appendix for GAAP to non-GAAP reconciliation

12Littelfuse, Inc. © 2026 Q1 2026 INDUSTRIAL SEGMENT  Revenue +45% reported and +5% organic vs. PY  Strong grid & utility infrastructure and data center demand, favorable pricing  Continued soft residential HVAC demand  Basler acquisition sales outpaced expectations  +39% contribution  Driven by strong grid & utility and data center infrastructure demand  Q1 Adj. EBITDA margin 21.9%, +340 bps vs PY  Favorable volume leverage and mix driving margin expansion FINANCIAL PERFORMANCE Op Margin 16.8% 15.3% Adj. EBITDA% 21.9% 18.5% $124 $85 Q1-26 Q1-25 Revenue (in millions) See appendix for GAAP to non-GAAP reconciliation

13Littelfuse, Inc. © 2026 Q2 2026 GUIDANCE  Entered Q2 with a strong backlog and continued bookings momentum  Focused on execution, traction on strategic priorities  Q2 sales guidance: $690m - $710m  +7% sequential  +14% yr/yr; +8% organic  +6% yr/yr growth from the Basler acquisition  Adj. EPS $3.65 - $3.85  +32% yr/yr at the midpoint  Expected adj. effective tax rate of 21% - 22% (in millions) $690 - $710 $657 $613 Q2-26 Guidance Q1-26 Q2-25 Revenue Adj. EPS $3.65 - $3.85 $3.31 $2.85 GAAP EPS $2.96 $2.30 See appendix for GAAP to non-GAAP reconciliation

14Littelfuse, Inc. © 2026 $2.85 $0.89 $0.01 $3.75 Q2 2025 Volume & Leverage Other Q2 2026 $613 $700 Q2 2025 Organic Growth Basler FX Q2 2026 450 500 550 600 650 700 Q2 2026 SALES & ADJ. EPS GUIDANCE BRIDGE Note Q2 2026 represents guidance midpoints (in millions) See appendix for GAAP to non-GAAP reconciliation Yr/Yr Sales Bridge 8% 6% 0% Yr/Yr Adj. EPS Bridge +31% Yr/Yr* Adj. EBITDA Conversion Note Other includes higher stock & variable compensation, lower adjusted effective tax rate, higher share count, & impact of other non-operating expenses

15Littelfuse, Inc. © 2026 FULL YEAR 2026 CONSIDERATIONS / EXPECTATIONS 2025 Pro Forma Littelfuse Revenue by End Market* 2026 Key Market Expectations *Pro forma company estimate includes Littelfuse and full year Basler End Market 2026 Expectation Transportation Content expansion and share gains amid mixed underlying market conditions Data Center & Building Infrastructure Continued strong data center momentum offsetting soft building infrastructure demand Consumer Electronics Expected continued soft market demand Diversified Industrials Continued broad-based demand strength Construction & Industrial Equipment Construction and industrial equipment growth offsetting declining residential HVAC volumes Renewables, Grid & Utility Infrastructure Continued strong renewable and grid & utility infrastructure demand Passenger Vehicle 21% Commercial Vehicle 9% Data Center & Building Infrastructure 19% Renewables, Grid & Utility Infrastructure 7% Diversified Industrials 18% Construction & Industrial Equipment 17% Consumer Electronics 9%

17Littelfuse, Inc. © 2026 SUPPLEMENTAL FINANCIAL INFORMATION Note: Total will not always foot due to rounding. (a) Reflected in selling, general and administrative expenses ("SG&A"). (b) Reflected in cost of sales. (c) Reflected in restructuring, impairment and other charges. (d) 2026 included the reversal of an indemnification receivable of $2.7 million related to lapses in the statute of limitations for previously unrecognized tax benefits recognized in the first quarter of 2026. (e) Reflected the tax impact associated with the non-GAAP adjustments including $2.7 million of tax benefits due to lapses in the statute of limitations for previously unrecognized tax benefits recognized in the first quarter of 2026. Non-GAAP EPS reconciliation Q1-26 Q1-25 GAAP diluted EPS $ 2.96 $ 1.75 EPS impact of Non-GAAP adjustments (below) 0.35 0.44 Adjusted diluted EPS $ 3.31 $ 2.19 Non-GAAP adjustments - (income) / expense (in millions) Q1-26 Q1-25 Acquisition-related and integration costs (a) $ 1.2 $ 0.1 Purchase accounting inventory adjustments (b) 5.4 (0.5) Restructuring, impairment and other charges (c) 7.4 9.0 Non-GAAP adjustments to operating income 14.0 8.6 Other income, net (d) 2.7 — Non-operating foreign exchange (gain) loss (2.4) 4.8 Non-GAAP adjustments to income before income taxes 14.3 13.4 Income taxes (e) 5.3 2.3 Non-GAAP adjustments to net income $ 9.0 $ 11.1 Total EPS impact $ 0.35 $ 0.44

18Littelfuse, Inc. © 2026 SUPPLEMENTAL FINANCIAL INFORMATION CONT’D Adjusted operating margin / Adjusted EBITDA reconciliation (in millions) Q1-26 Q1-25 Net income $ 75.1 $ 43.6 Add: Income taxes 21.6 16.4 Interest expense 7.0 8.9 Foreign exchange (gain) loss (2.4) 4.8 Other income, net (0.1) (3.5) GAAP operating income $ 101.2 $ 70.2 Non-GAAP adjustments to operating income 14.0 8.6 Adjusted operating income $ 115.1 $ 78.8 Amortization of intangibles 16.5 14.3 Depreciation expense 19.0 18.4 Adjusted EBITDA $ 150.6 $ 111.5 Net sales $ 657.0 $ 554.3 Net income as a percentage of net sales 11.4 % 7.9 % Operating margin 15.4 % 12.7 % Adjusted operating margin 17.5 % 14.2 % Adjusted EBITDA margin 22.9 % 20.1 %

19Littelfuse, Inc. © 2026 SUPPLEMENTAL FINANCIAL INFORMATION CONT’D Adjusted EBITDA by Segment (in millions) Q1-26 Q1-25 Electronics Transportation Industrial Electronics Transportation Industrial GAAP operating income $ 70.3 $ 24.1 $ 20.8 $ 46.8 $ 18.9 $ 13.1 Add: Add back amortization 9.0 3.4 4.1 9.8 3.3 1.2 Add back depreciation 11.8 5.0 2.2 11.4 5.5 1.5 Adjusted EBITDA $ 91.0 $ 32.5 $ 27.1 $ 68.0 $ 27.7 $ 15.8 Adjusted EBITDA Margin 25.1 % 19.1 % 21.9 % 22.1 % 17.1 % 18.5 % Net sales (in thousands) Q1-26 Q1-25 Electronics Transportation Industrial Electronics Transportation Industrial Electronics – Passive Products and Sensors $ 187,123 $ — $ — $ 148,960 $ — $ — Electronics – Semiconductor 175,652 — — 158,289 — — Commercial Vehicle Products — 78,881 — — 77,769 — Passenger Car Products — 76,240 — — 69,035 — Automotive Sensors — 15,260 — — 15,058 — Industrial Products — — 123,813 — — 85,196 Total $ 362,775 $ 170,381 $ 123,813 $ 307,249 $ 161,862 $ 85,196

20Littelfuse, Inc. © 2026 SUPPLEMENTAL FINANCIAL INFORMATION CONT’D (1) Passenger vehicle business (PVB) includes passenger car and auto sensor products. Net sales reconciliation Q1-26 vs. Q1-25 Electronics Transportation Industrial Total Net sales growth 18 % 5 % 45 % 19 % Less: Acquisitions — % — % 39 % 6 % FX impact 3 % 4 % 1 % 3 % Organic net sales growth 15 % 1 % 5 % 9 % Electronics segment net sales reconciliation Q1-26 vs. Q1-25 Electronics - Passive Products and Sensors Electronics - Semiconductor Total Electronics Net sales growth 26 % 11 % 18 % Less: FX impact 4 % 3 % 3 % Organic net sales growth 22 % 8 % 15 % Transportation segment net sales reconciliation Q1-26 vs. Q1-25 Commercial Vehicle Products Passenger Car Products (1) Auto Sensor Products (1) Total Transportation Net sales growth 1 % 10 % 1 % 5 % Less: FX impact 2 % 4 % 8 % 4 % Organic net sales (decline) growth (1)% 6 % (7)% 1 %

21Littelfuse, Inc. © 2026 SUPPLEMENTAL FINANCIAL INFORMATION CONT’D Income tax reconciliation Q1-26 Q1-25 Income taxes $ 21.6 $ 16.4 Effective rate 22.3 % 27.3 % Non-GAAP adjustments - income taxes 5.3 2.3 Adjusted income taxes $ 26.9 $ 18.7 Adjusted effective rate 24.2 % 25.5 % Free cash flow reconciliation Q1-26 Q1-25 Net cash provided by operating activities $ 80.3 $ 65.8 Less: Purchases of property, plant, and equipment (14.1) (23.1) Free cash flow $ 66.2 $ 42.7 Free cash flow conversion Q1-26 Q1-25 Net income $ 75.1 $ 43.6 Free cash flow 66.2 42.7 Free cash flow conversion 88 % 98 %

22Littelfuse, Inc. © 2026 SUPPLEMENTAL FINANCIAL INFORMATION CONT’D * Our Credit Agreement and Private Placement Note with maturities ranging from 2027 to 2031, contain financial ratio covenants providing that if, as of the last day of each fiscal quarter, the Consolidated Net Leverage ratio at such time for the then most recently concluded period of four consecutive fiscal quarters of the Company exceeds 3.50:1.00, an Event of Default (as defined in the Credit Agreement and Private Placement Senior Notes) is triggered. The Credit Agreement were amended in Q1 2026 and now allow to add restructuring charges and business optimization expenses in addition to the Prior credit agreement. (1) Represents Consolidated EBITDA as defined in our Credit Agreement and Private Placement Senior Notes and is calculated using the most recently concluded period of four consecutive quarters. Consolidated Total Debt (in millions) As of March 28, 2026 Consolidated total debt $ 631.5 Unamortized debt issuance costs 3.5 Finance lease liability 0.2 Consolidated funded indebtedness 635.2 Cash held in U.S. (up to $400 million) 67.6 Net debt $ 567.6 Consolidated EBITDA (in millions) Twelve Months Ended March 28, 2026 Net Loss $ (40.3) Interest expense 32.4 Income taxes 80.5 Depreciation expense 75.4 Amortization expense 62.0 Non-cash additions: Stock-based compensation expense 28.1 Purchase accounting inventory step-up charge 6.4 Unrealized loss on investments 2.1 Impairment charges 301.9 Other 34.1 Consolidated EBITDA (1) $ 582.6 Consolidated Net Leverage Ratio (as defined in the Credit Agreement) * 1.0x

23Littelfuse, Inc. © 2026 SUPPLEMENTAL FINANCIAL INFORMATION CONT’D Note: Total will not always foot due to rounding. (a) Reflected in selling, general and administrative expenses ("SG&A"). (b) Reflected in restructuring, impairment and other charges. (c) Reflected the tax impact associated with the non-GAAP adjustments. Non-GAAP EPS reconciliation Q2-25 GAAP diluted EPS $ 2.30 EPS impact of Non-GAAP adjustments (below) 0.50 Adjusted diluted EPS $ 2.85 Non-GAAP adjustments - (income) / expense Q2-25 Acquisition-related and integration costs (a) $ 1.5 Restructuring, impairment and other charges (b) 2.5 Non-GAAP adjustments to operating income 4.0 Non-operating foreign exchange loss 10.4 Non-GAAP adjustments to income before income taxes 14.4 Income taxes (c) 0.8 Non-GAAP adjustments to net income $ 13.6 Total EPS impact $ 0.55

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

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- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

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- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

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- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

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Namespace Prefix:

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- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

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- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

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- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

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