LITTELFUSE INC DE
For the period ended Dec 28, 2024. Filed Mar 13, 2025.
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FY2024 · Filed Mar 13, 2025
LFUS$385.63+8.4%Stored close · as of Nov 9, 2026
Extracted filing text, with the paragraph anchors used by the comparison.
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Exhibit Index
The following documents listed below that have been previously filed with the SEC (1934 Act File No. 0-20388) are incorporated herein by reference:
| Incorporated by Reference Herein | |||||
|---|---|---|---|---|---|
| Exhibit No. | Description | Form | Exhibit | Filing Date | File No. |
| 2.1 | Stock Purchase Agreement, dated October 19, 2021, by and between Littelfuse, Inc., the Shareholders of Carling Technologies, Inc., and Christopher T. Sorenson, as Sellers’ Representative | 8-K | 2.1 | 10/20/2021 | 0-20388 |
| 2.2 | First Amendment to Stock Purchase Agreement, dated November 29, 2021, by and between Littelfuse, Inc., the Shareholders of Carling Technologies, Inc., and Christopher T. Sorenson | 10-K | 2.3 | 2/27/2022 | 0-20388 |
| 2.3 | Sale and Purchase Agreement, dated April 7, 2022, by and between Cayman NIH VI BEIT Holdings, L.P. and Littelfuse, Inc. | 8-K | 2.1 | 4/8/2022 | 0-20388 |
| 2.4 | Warranty Deed, dated April 7, 2022, by and between the warrantors party thereto and Littelfuse, Inc. | 8-K | 2.2 | 4/8/2022 | 0-20388 |
| 2.5 | Deed of Amendment No. 1 Sale and Purchase Agreement, dated July 18, 2022, by and between Cayman NIH VI BEIT Holdings, L.P. and Littelfuse, Inc. | 10-Q | 2.1 | 8/3/2022 | 0-20388 |
| 3.1 | Certificate of Incorporation dated November 25, 1991, as amended April 25, 1997. | 10-K | 3.1 | 2/27/2017 | 0-20388 |
| 3.2 | Certificate of Designations of Series A Preferred Stock. | 8-K | 4.2 | 12/1/1995 | 0-20388 |
| 3.3 | Bylaws, as amended and restated January 27, 2023. | 8-K | 3.1 | 2/3/2023 | 0-20388 |
| 4.1 | Description of Securities of Littelfuse, Inc. | 10-K | 4.1 | 2/21/2020 | 0-20388 |
| 10.1 | Littelfuse, Inc. Outside Directors' Equity Plan.++ | DEF14A | A | 3/22/2007 | 0-20388 |
| 10.2 | Form of Restricted Stock Unit Award Agreement under the Littelfuse, Inc. Outside Directors' Equity Plan.++ | 8-K | 99.4 | 5/1/2008 | 0-20388 |
| 10.3 | Form of Restricted Stock Unit Award Agreement (Outside Director) under the Littelfuse, Inc. Long-Term Incentive Plan.++ | S-8 | 4.4 | 5/19/2010 | 0-20388 |
| 10.4 | Form of Stock Option Award Agreement under the Littelfuse, Inc. Long-Term Incentive Plan.++ | S-8 | 4.6 | 5/19/2010 | 0-20388 |
| 10.5 | Littelfuse, Inc. Annual Incentive Plan, effective January 1, 2014. ++ | DEF14A | A | 3/17/2014 | 0-20388 |
| 10.6 | Form of Stock Option Award Agreement (Executive) under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 10-Q | 10.3 | 5/6/2016 | 0-20388 |
| 10.7 | Form of Stock Option Award Agreement (Outside Director – 2016 Grant) under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 10-Q | 10.4 | 5/6/2016 | 0-20388 |
| 10.8 | Form of Restricted Stock Unit Award Agreement (Outside Director – 2016 Grant) under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 10-Q | 10.7 | 5/6/2016 | 0-20388 |
| 10.9 | Letter Agreement entered into between Littelfuse, Inc. and David W. Heinzmann. Effective January 1, 2017. ++ | 8-K | 10.2 | 11/16/2016 | 0-20388 |
| 10.10 | Littelfuse, Inc. 3.03% Senior Note, Series A, due February 15, 2022, and 3.74% Senior Note, Series B, due February 15, 2027 Note Purchase Agreement. | 8-K | 10.1 | 12/9/2016 | 0-20388 |
| 10.11 | Littelfuse, Netherland C.V. 1.14% Senior Note, Series A, due December 8, 2023, and 1.83% Senior Note, Series B, due December 8, 2028 Note Purchase Agreement. | 8-K | 10.2 | 12/9/2016 | 0-20388 |
| 10.12 | Subsidiary Guaranty Agreement, dated December 8, 2016. | 8-K | 10.4 | 12/9/2016 | 0-20388 |
| Incorporated by Reference Herein | |||||
|---|---|---|---|---|---|
| Exhibit No. | Description | Form | Exhibit | Filing Date | File No. |
| 10.13 | Subsidiary Guaranty Agreement, dated as of February 15, 2017. | 8-K | 10.2 | 2/15/2017 | 0-20388 |
| 10.14 | Restated Littelfuse, Inc. Supplemental Retirement and Savings Plan, effective January 1, 2017. ++ | 10-K | 10.50 | 2/27/2017 | 0-20388 |
| 10.15 | Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan. ++ | 8-K | 10.1 | 5/1/2017 | 0-20388 |
| 10.16 | Form of 2017 Stock Option Award Agreement. ++ | 8-K | 10.3 | 5/1/2017 | 0-20388 |
| 10.17 | Employment offer letter between Littelfuse, Inc. and Jeffrey Gorski, dated June 28, 2017. ++ | 8-K | 10.1 | 8/14/2017 | 0-20388 |
| 10.18 | Note Purchase Agreement, dated November 15, 2017, among Littelfuse, Inc. and note purchasers listed on the signature pages thereto. | 8-K | 10.1 | 11/15/2017 | 0-20388 |
| 10.19 | Form of 3.78% Senior Note, Series B, due February 15, 2030. | 8-K | 4.2 | 11/15/2017 | 0-20388 |
| 10.20 | Form of 3.48% Senior Note, Series A, due February 15, 2025, | 8-K | 4.1 | 11/15/2017 | 0-20388 |
| 10.21 | Subsidiary Guaranty Agreement, dated as of January 16, 2018, made by LFUS LLC, Littelfuse Commercial Vehicle, LLC, Iron Merger Co., Inc., IXYS Merger Co., LLC and SymCom, Inc. in favor of the note purchasers and the other holders. | 8-K | 10.2 | 1/18/2018 | 0-20388 |
| 10.22 | Littelfuse, Inc. Executive Severance Policy. ++ | 8-K | 10.4 | 1/18/2018 | 0-20388 |
| 10.23 | IXYS Corporation 2009 Equity Incentive Plan++ | S-8 | 4.4 | 1/19/2018 | 333-221147 |
| 10.24 | IXYS Corporation 2011 Equity Incentive Plan++ | S-8 | 4.5 | 1/19/2018 | 333-221147 |
| 10.25 | IXYS Corporation 2013 Equity Incentive Plan++ | S-8 | 4.6 | 1/19/2018 | 333-221147 |
| 10.26 | IXYS Corporation 2016 Equity Incentive Plan++ | S-8 | 4.7 | 1/19/2018 | 333-221147 |
| 10.27 | Notice of Stock Option Grant and Agreement for the IXYS Corporation 2009 Equity Incentive Plan++ | 10-Q | 10.4 | 8/10/2009 | 000-26124 |
| 10.28 | Notice of Stock Option Grant and Agreement for IXYS Corporation 2011 Equity Incentive Plan++ | 10-Q | 10.2 | 8/5/2011 | 000-26124 |
| 10.29 | Notice of Stock Option Grant and Agreement for IXYS Corporation 2013 Equity Incentive Plan++ | 10-Q | 10.6 | 8/9/2013 | 000-26124 |
| 10.30 | Notice of Stock Option Grant and Agreement for IXYS Corporation 2016 Equity Incentive Plan++ | 10-Q | 10.1 | 11/3/2016 | 000-26124 |
| 10.31 | Cross Border Assumption Agreement, dated as of October 3, 2018, made by each of New Dutch B.V. and IXYS Dutch B.V. in favor of the note purchasers and the other holders. | 10-K | 10.106 | 02/22/2019 | 0-20388 |
| 10.32 | Amended and Restated Employment Agreement entered into between Littelfuse Europe GmbH and Alexander Conrad, effective April 1, 2019. ++ | 10-K | 10.77 | 02/21/2020 | 0-20388 |
| 10.33 | Form of Restricted Stock Unit Award Agreement (Tier I) under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 8-K | 10.1 | 4/24/2020 | 0-20388 |
| 10.34 | Form of Option Award Agreement (Tier I) under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 8-K | 10.2 | 4/24/2020 | 0-20388 |
| 10.35 | Form of Restricted Stock Unit Award Agreement (Non-Employee Director) under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 8-K | 10.3 | 4/24/2020 | 0-20388 |
| 10.36 | Form of Option Award Agreement (Non-Employee Director) under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 8-K | 10.4 | 4/24/2020 | 0-20388 |
| 10.37 | Form of Restricted Stock Unit Award Agreement (Tier II) under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 10-Q | 10.6 | 4/29/2020 | 0-20388 |
| 10.38 | Form of Restricted Stock Unit Award Agreement (IXYS Tier II) under the IXYS Corporation Equity Incentive Plan. ++ | 10-Q | 10.7 | 4/29/2020 | 0-20388 |
| Incorporated by Reference Herein | |||||
|---|---|---|---|---|---|
| Exhibit No. | Description | Form | Exhibit | Filing Date | File No. |
| 10.39 | Form of Retention Stock Option Award Agreement under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 10-Q | 10.8 | 7/29/2020 | 0-20388 |
| 10.40 | Form of Retention Stock Option Award Agreement under the IXYS Corporation Equity Incentive Plan. ++ | 10-Q | 10.9 | 7/29/2020 | 0-20388 |
| 10.41 | Form of Retention Restricted Stock Unit Award Agreement under the Littelfuse, Inc. Long-Term Incentive Plan. ++ | 10-Q | 10.10 | 7/29/2020 | 0-20388 |
| 10.42 | Form of Retention Restricted Stock Unit Award Agreement under the IXYS Corporation Equity Incentive Plan. ++ | 10-Q | 10.11 | 7/29/2020 | 0-20388 |
| 10.43 | Amended and Restated Littelfuse Deferred Compensation Plan for Non-Employee Directors. ++ | 10-Q | 10.1 | 10/28/2020 | 0-20388 |
| 10.44 | First Amendment to the Littelfuse, Inc. Supplemental Retirement and Savings Plan, effective January 1, 2019.++ | 10-K | 10.68 | 2/18/2021 | 0-20388 |
| 10.45 | Second Amendment to the Littelfuse, Inc. Supplemental Retirement and Savings Plan, effective January 1, 2020.++ | 10-K | 10.69 | 2/18/2021 | 0-20388 |
| 10.46 | Third Amendment to the Littelfuse, Inc. Supplemental Retirement and Savings Plan, effective January 1, 2020.++ | 10-K | 10.70 | 2/18/2021 | 0-20388 |
| 10.47 | Employment offer letter between Littelfuse, Inc. and Maggie Chu, dated April 28, 2021 ++ | 10-Q | 10.1 | 7/28/2021 | 0-20388 |
| 10.48 | Form of 4.33% Senior Note due June 30, 2032. | 8-K | 4.1 | 5/19/2022 | 0-20388 |
| 10.49 | Note Purchase Agreement, dated May 18, 2022, among Littelfuse, Inc. and note purchasers listed on the signature pages thereto. | 8-K | 10.1 | 5/19/2022 | 0-20388 |
| 10.50 | Subsidiary Guaranty Agreement, dated July 18, 2022, among Carling Technologies, Inc., Hartland Controls Holding Corp., Hartland Controls, L.L.C., IXYS Buckeye, LLC, IXYS Integrated Circuits Division, LLC, IXYS Long Beach, Inc., IXYS USA, LLC, IXYS, LLC, LFUS LLC, Littelfuse Commercial Vehicle, LLC, Littelfuse Holding, LLC, Littelfuse International Holding, LLC, Littelfuse Mexico Holding LLC, Monolith Semiconductor Inc., Pele Technology, Inc., Reaction Tech RE, LLC, Reaction Technology Epi, LLC, Reaction Technology Incorporated, SymCom, Inc. and Zilog, Inc. | 8-K | 10.2 | 5/19/2022 | 0-20388 |
| 10.51 | First Amendment to 2016 Note Purchase Agreement, dated May 18, 2022, among Littelfuse, Inc., certain subsidiary guarantors, and the institutions party thereto. | 8-K | 10.3 | 5/19/2022 | 0-20388 |
| 10.52 | First Amendment to 2016 Cross Border Note Purchase Agreement, dated May 18, 2022, among Littelfuse Netherland C.V., Littelfuse, Inc., certain subsidiary guarantors, and the institutions party thereto. | 8-K | 10.4 | 5/19/2022 | 0-20388 |
| 10.53 | First Amendment to 2017 Note Purchase Agreement, dated May 18, 2022, among Littelfuse, Inc., certain subsidiary guarantors, and the institutions party thereto. | 8-K | 10.5 | 5/19/2022 | 0-20388 |
| 10.54 | Amended and Restated Credit Agreement, dated as of June 30, 2022, by and among Littelfuse, Inc., certain subsidiaries of the company, as designated borrowers, certain subsidiaries of the company, as guarantors, the lenders party thereto and Bank of America, N.A., as agent, JPMorgan Chase Bank, N.A., as syndication agent, PNC Bank, National Association and BMO Harris Bank, N.A., as co-senior documentation agents, Wells Fargo Bank, National Association, as documentation agent, BofA Securities, Inc. as sole bookrunner and joint lead arranger, and JPMorgan Chase Bank, N.A., as joint lead arranger. | 8-K | 10.1 | 6/30/2022 | 0-20388 |
| 10.55 | First Amendment to the Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan.++ | 8-K | 10.1 | 4/28/2023 | 0-20388 |
| 10.56 | Form of Change of Control Agreement.++ | 8-K | 10.1 | 1/05/2024 | 0-20388 |
| Incorporated by Reference Herein | |||||
|---|---|---|---|---|---|
| Exhibit No. | Description | Form | Exhibit | Filing Date | File No. |
| 10.57 | Amended and Restated Annual Incentive Plan.++ | 8-K | 10.1 | 2/01/2024 | 0-20388 |
| 10.58 | Retirement Letter, dated January 10, 2025, by and between Littelfuse, Inc. and David W. Heinzmann.++ | 8-K | 10.1 | 1/13/2025 | 0-20388 |
| 10.59 | Offer Letter, dated January 10, 2025, by and between Littelfuse, Inc and Gregory N. Henderson.++ | 8-K | 10.2 | 1/13/2025 | 0-20388 |
| 10.60* | Performance Share Award Agreement, dated February 10, 2025, by and between Littelfuse, Inc. and Gregory N. Henderson.++ | ||||
| 10.61* | Form of Off-Cycle Restricted Stock Unit Award Agreement.++ | ||||
| 10.62* | Form of Off-Cycle Littelfuse-IXYS Restricted Stock Unit Award Agreement.++ | ||||
| 10.63* | Summary of Non-Employee Director Compensation.++ | ||||
| 19.1 | Insider Trading Policy. | 10-K | 19.1 | 2/16/2024 | 0-20388 |
| 21.1* | Subsidiaries. | ||||
| 23.1* | Consent of Independent Registered Public Accounting Firm. | ||||
| 23.2* | Consent of Independent Registered Public Accounting Firm. | ||||
| 31.1* | Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | ||||
| 31.2* | Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | ||||
| 32.1+++ | Certification of the Chief Executive Officer and Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. | ||||
| 97.1 | Compensation Recovery Policy | 10-K | 97.1 | 2/16/2024 | 0-20388 |
| 101.INS* | XBRL Instance Document. | ||||
| 101.SCH* | XBRL Taxonomy Extension Schema Document. | ||||
| 101.CAL* | XBRL Taxonomy Extension Calculation Linkbase Document. | ||||
| 101.LAB* | XBRL Taxonomy Extension Label Linkbase Document. | ||||
| 101.PRE* | XBRL Taxonomy Extension Presentation Linkbase Document. | ||||
| 101.DEF* | XBRL Taxonomy Extension Definition Linkbase Document. | ||||
| 104 | The cover page on this Annual Report on Form 10-K for the fiscal year ended December 28, 2024, formatted in Inline XBRL and contained in Exhibit 101. | ||||
- Filed with this Report.
- Exhibits and schedules omitted pursuant to Item 601(b)(2) of Regulation S-K. Littelfuse agrees to furnish a supplemental copy of an omitted exhibit or schedule to the SEC upon request.
++ Management contract or compensatory plan or arrangement.
+++ Furnished with this Report.
The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.