IXYS CORPORATION (NASDAQ:IXYS) Files An 8-K Submission of Matters to a Vote of Security Holders
Item 5.07 Submission of Matters to a Vote of Security Holders.

IXYS Corporation (“IXYS” or the “Company”) held its Special Meeting of Stockholders on January12, 2018 (the “Special Meeting”).The holders of record of shares of common stock, par value $0.01 per share, of IXYS (“Common Stock”) at the close of business on December6, 2017 (the “Record Date”) were entitled to vote at the Special Meeting. As of the Record Date, there were 32,935,335 shares of Common Stock outstanding and owned by stockholders (i.e., excluding shares of Common Stock held in treasury by IXYS). Each holder of Common Stock is entitled to one (1)vote for each share of Common Stock owned as of the Record Date at the Special Meeting.At the Special Meeting, 24,512,140 shares of Common Stock were present or represented by proxy; therefore, a quorum was present.IXYS’ stockholders voted on three proposals, all of which were approved by the requisite vote of the Company’s stockholders.The final voting results for the proposals are set forth below.

Proposal 1: To approve, direct and adopt the Agreement and Plan of Merger, dated as of August25, 2017, by and among IXYS, Littelfuse, Inc. (“Littelfuse”), and Iron Merger Co., Inc. (“Merger Sub”), a wholly owned subsidiary of Littelfuse (as amended by Amendment No.1, dated as of December4, 2017, by and among IXYS, Littelfuse, Merger Sub and IXYS Merger Co., LLC, a wholly owned subsidiary of Littelfuse (“Merger Sub Two”), the “Merger Agreement”), to which, upon the terms and subject to the conditions of the Merger Agreement, Merger Sub will merge with and into IXYS (the “Initial Merger”), with IXYS surviving the Initial Merger as a wholly owned subsidiary of Littelfuse, and further to which IXYS, as the surviving corporation of the Initial Merger, will merge with and into Merger Sub Two (the “Follow-on Merger,” and collectively with the Initial Merger, the “Merger”), with Merger Sub Two continuing as the surviving company in the Follow-on Merger and a wholly owned subsidiary of Littelfuse (the “Merger Proposal”).

Proposal 2: To approve on an advisory (non-binding) basis the compensation that may be paid or become payable to IXYS’ named executive officers that is based on or otherwise relates to the Merger.

Proposal 3: To approve the adjournment of the Special Meeting, if necessary, to solicit additional proxies if there are not sufficient votes to approve the Merger Proposal.

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Forward-Looking Statements

This communication contains forward-looking statements (including within the meaning of Section21E of the Securities Exchange Act of 1934, as amended, and Section27A of the Securities Act of 1933, as amended) concerning IXYS, Littelfuse, the proposed transaction and other matters. These statements may discuss goals, intentions and expectations as to future plans, trends, events, results of operations or financial condition, or otherwise, based on current beliefs of the management of IXYS and Littelfuse, as well as assumptions made by, and information currently available to, such management. Forward-looking statements may be accompanied by words such as “aim,” “anticipate,” “believe,” “plan,” “could,” “would,” “should,” “estimate,” “expect,” “forecast,” “future,” “guidance,” “intend,” “may,” “will,” “possible,” “potential,” “predict,” “project” or similar words, phrases or expressions. These forward-looking statements are subject to various risks and uncertainties, many of which are outside the parties’ control. Therefore, you should not place undue reliance on such statements.

Factors which could cause actual results to differ from those projected or contemplated in any such forward-looking statements include, but are not limited to, the following factors: (1)the risk that the conditions to the closing of the proposed transaction are not satisfied, including the risk that required regulatory approvals or approval from the stockholders of IXYS are not obtained; (2)potential litigation relating to the proposed transaction; (3)uncertainties as to the timing of the consummation of the proposed transaction and the ability of each party to consummate the proposed transaction; (4)risks that the proposed transaction disrupts the current plans and operations of IXYS or Littelfuse; (5)the ability of IXYS and Littelfuse to retain and hire key personnel; (6)competitive responses to the announcement or completion of the proposed transaction; (7)unexpected costs, charges or expenses resulting from the proposed transaction; (8)potential adverse reactions or changes to business relationships resulting from the announcement or completion of the proposed transaction; (9)the combined companies’ ability to achieve the growth prospects and synergies expected from the proposed transaction, as well as delays, challenges and expenses associated with integrating the combined companies’ existing businesses; (10)legislative, regulatory and economic developments; and (11)unpredictability and severity of catastrophic events, including, but not limited to, acts of terrorism or outbreak of war or hostilities, as well as management’s response to any of the aforementioned factors. The foregoing review of important factors that could cause actual events to differ from expectations should not be construed as exhaustive and should be read in conjunction with statements that are included herein and elsewhere, including the risk factors included in IXYS’ and Littelfuse’s most recent Quarterly Report on Form 10-Q and Annual Report on Form 10-K, respectively, and IXYS’ and Littelfuse’s more recent reports filed with the SEC. Neither IXYS nor Littelfuse undertakes any intent or obligation to publicly update or revise any of these forward looking statements, whether as a result of new information, future events or otherwise, except as required by law.

No Offer or Solicitation

This communication is not intended to and does not constitute an offer to sell or the solicitation of an offer to sell or buy any securities or the solicitation of any vote in any jurisdiction to the proposed transaction or otherwise, nor shall there be any sale, issuance or transfer of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section10 of the Securities Act of 1933, as amended.

Important Additional Information and Where to Find It

In connection with the proposed transaction, IXYS and Littelfuse have filed and will file relevant materials with the Securities and Exchange Commission (“SEC”). Littelfuse has filed with the SEC a registration statement on Form S-4 (Registration No.333-221147) (the “registration statement”) containing a proxy statement of IXYS that also constitutes a prospectus of Littelfuse (the “proxy statement/prospectus”). This document is not a substitute for the registration statement or proxy statement/prospectus or any other document which IXYS or Littelfuse may file with the SEC. INVESTORS AND STOCKHOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT, PROXY STATEMENT/PROSPECTUS AND ANY OTHER RELEVANT DOCUMENTS THAT ARE FILED OR WILL BE FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENT TO THESE DOCUMENTS, CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT IXYS, LITTELFUSE, THE PROPOSED TRANSACTIONS AND RELATED MATTERS. A definitive proxy statement/prospectus has been sent to IXYS stockholders. Investors and stockholders are able to obtain free copies of these materials through the website maintained by the SEC at www.sec.gov. In addition, investors and stockholders will be able to obtain free copies of these materials by contacting IXYS Investor Relations at (408) 457-9000 or [email protected] (for documents filed with the SEC by IXYS) or Littelfuse Investor Relations at (773) 628-1000 (for documents filed with the SEC by Littelfuse).

Participants in the Solicitation

IXYS, Littelfuse and their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from the stockholders of IXYS in respect of the proposed transaction under the rules of the SEC. Information regarding IXYS’ directors and executive officers is contained in IXYS’ Annual Report on Form 10-K for the year ended March31, 2017, which was filed with the SEC on June12, 2017, and its proxy statement for its 2017 annual meeting of stockholders, which was filed with the SEC on July28, 2017. Information regarding

Littelfuse’s directors and executive officers is contained in Littelfuse’s Annual Report on Form 10-K for the year ended December31, 2016, which was filed with the SEC on February27, 2017, and its proxy statement for its 2017 annual meeting of stockholders, which was filed with the SEC on March16, 2017. Additional information regarding the participants in the solicitation of the stockholders of IXYS and a description of their direct or indirect interests, by security holdings or otherwise, will be included in the proxy statement/prospectus and other relevant materials to be filed with the SEC when they become available. These documents can be obtained free of charge from the sources indicated above.

About IXYS CORPORATION (NASDAQ:IXYS)

IXYS Corporation (IXYS) is a multi-market integrated semiconductor company. The Company is engaged in the development, manufacture and marketing of power semiconductors, mixed-signal integrated circuits (ICs), application specific integrated circuits (ASICs), microcontrollers, systems and radio frequency (RF) power semiconductors. Its power semiconductors are sold separately and are also packaged in high power modules that consist of multiple semiconductor dies. Its power metal-oxide-silicon (MOS) transistors operate at greater switching speeds than bipolar transistors. Its ICs address the demand for analog, mixed-signal and digital interface solutions in communication and other industries and include microcontrollers, mixed-signal application-specific ICs. RF power devices switch electricity at the high rates necessary to enable the amplification or reception of radio frequencies. It manufactures and sells laser diode drivers, high voltage pulse generators and modulators.