UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities

Exchange Act of 1934 (Amendment No.             )

Filed by the Registrant  ☒                            Filed by a Party other than the Registrant  ☐

Check the appropriate box:

Silicon Laboratories Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

Notice of Annual Meeting and Proxy Statement

Annual Meeting of Stockholders

Thursday, April 18, 2019

A more connected world is here.

To the Stockholders of Silicon Laboratories Inc.:

You are cordially invited to attend the Annual Meeting of Stockholders of Silicon Laboratories Inc., a Delaware corporation, to be held on April 18, 2019, at 9:00 a.m. Central Time at the Lady Bird Johnson Wildflower Center, 4801 La Crosse Avenue, Austin, Texas 78739, for the purposes described in the Proxy Statement.

The 2019 Annual Meeting will focus on the items of business listed in the Notice of Annual Meeting of Stockholders and Proxy Statement that follows. We are sending this Proxy Statement to our stockholders on or about March 7, 2019. During the Annual Meeting we will also present a report on Silicon Labs’ performance and operations during 2018.

Whether or not you plan to attend the meeting in person, your vote is important. Instructions regarding the various methods of voting are contained in the Proxy, including voting by toll-free telephone number or the Internet. If you request and receive a paper copy of the Proxy by mail, you may still vote your shares by fully completing and returning the Proxy. You may revoke your Proxy at any time prior to the Annual Meeting. If you attend the Annual Meeting and vote by ballot, your Proxy will be revoked automatically and only your vote at the Annual Meeting will be counted.

SILICON LABORATORIES INC.

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

Table of Contents

SILICON LABORATORIES INC.

PROXY STATEMENT

Annual Meeting of Stockholders to be held on April 18, 2019

General

The enclosed Proxy is solicited on behalf of the Board of Directors of Silicon Laboratories Inc., a Delaware corporation, for use at the Annual Meeting of Stockholders to be held on April 18, 2019 at 9:00 a.m. Central Time at the Lady Bird Johnson Wildflower Center, 4801 La Crosse Avenue, Austin, Texas 78739, or at any adjournment thereof. On or about March 7, 2019 we mailed to our stockholders a notice containing instructions on how to vote and how to access our 2019 Proxy Statement and 2018 Annual Report.

Voting

The specific proposals to be considered and acted upon at the Annual Meeting are summarized in the accompanying notice and are described in more detail in this Proxy Statement. On February 22, 2019, the record date for determination of stockholders entitled to notice of and to vote at the Annual Meeting, 43,336,270 shares of our common stock were outstanding and no shares of our preferred stock were outstanding. Each stockholder is entitled to one vote for each share of common stock held by such stockholder on February 22, 2019. The presence, in person or by proxy, of the holders of a majority of our shares entitled to vote is necessary to constitute a quorum at the Annual Meeting or at any adjournment thereof. Stockholders may not cumulate votes in the election of directors. The affirmative vote of a majority of the votes cast (in person or represented by proxy at the Annual Meeting) with respect to each director’s election is necessary for the election of such director. The affirmative vote of a majority of our shares present in person or represented by proxy at the Annual Meeting and entitled to vote will be required to approve Proposals Two and Three. All votes will be tabulated by the inspector of election appointed for the meeting, who will separately tabulate affirmative and negative votes, abstentions and broker non-votes (i.e., a Proxy submitted by a broker or nominee specifically indicating the lack of discretionary authority to vote on the matter). Abstentions and broker non-votes will be counted as present for purposes of determining a quorum for the transaction of business but will not be counted for purposes of determining whether each proposal has been approved.

Proxies

If the enclosed form of Proxy is properly signed and returned or you properly follow the instructions for telephone or Internet voting, the shares represented thereby will be voted at the Annual Meeting in accordance with the instructions specified thereon. If the Proxy does not otherwise specify how the shares represented thereby are to be voted, the Proxy will be voted (i) FOR the election of the directors proposed by the Board of Directors, (ii) FOR the approval of the selection of Ernst & Young LLP as our independent registered public accounting firm and (iii) FOR the approval of an advisory resolution to approve executive compensation. You may revoke or change your Proxy at any time before the Annual Meeting by filing either a notice of revocation or another signed Proxy with a later date with our Corporate Secretary at our principal executive offices at 400 West Cesar Chavez, Austin, Texas 78701. You may also revoke your Proxy by attending the Annual Meeting and voting in person.

Solicitation

We will bear the entire cost of solicitation, including the preparation, assembly, printing and mailing of this Proxy Statement, the Proxy and any additional solicitation materials furnished to the stockholders. Copies of solicitation materials will be furnished to brokerage houses, fiduciaries and custodians holding in their names shares that are beneficially owned by others so that they may forward this solicitation material to such beneficial owners. In addition, we may reimburse such persons for their costs in forwarding the solicitation materials to such beneficial owners. The original solicitation of Proxies by

mail and the Internet may be supplemented by a solicitation by telephone or other means by directors, officers, or employees. No additional compensation will be paid to these individuals for any such services. Except as described above, we do not presently intend to solicit Proxies other than by mail and the Internet.

Deadline for Receipt of Future Stockholder Proposals

Pursuant to Rule 14a-8 under the Securities Exchange Act of 1934, stockholder proposals to be presented at our 2020 annual meeting of stockholders and in our proxy statement and form of proxy relating to that meeting must be received by us at our principal executive offices at 400 West Cesar Chavez, Austin, Texas 78701, addressed to our Corporate Secretary, not later than November 7, 2019. These proposals must comply with applicable Delaware law, the rules and regulations promulgated by the Securities and Exchange Commission (“SEC”) and the procedures set forth in our bylaws. Pursuant to our bylaws, stockholder proposals received after November 7, 2019 will be considered untimely. Unless we receive notice in the manner specified above, the proxy holders shall have discretionary authority to vote for or against any such proposal presented at our 2020 annual meeting of stockholders.

MATTERS TO BE CONSIDERED

AT ANNUAL MEETING

Proposal One: Election of Directors

General

The Board of Directors is divided into three classes, designated Class I, Class II and Class III, with staggered three-year terms. The term of office of the Class III Directors, William G. Bock, Jack R. Lazar and Christy Wyatt will expire at this Annual Meeting. Messrs. Bock and Lazar and Ms. Wyatt have been nominated to continue as Class III Directors. The directors elected as Class III Directors at the Annual Meeting will each serve for a term of three years expiring at the 2022 annual meeting of stockholders, or until such director’s successor has been duly elected and qualified or until such director’s earlier death, resignation or removal.

The nominees for election have agreed to serve if elected, and management has no reason to believe that the nominees will be unavailable to serve. In the event the nominees are unable or decline to serve as directors at the time of the Annual Meeting, the Proxies will be voted for any nominees who may be designated by our present Board of Directors to fill the vacancies. Unless otherwise instructed, the Proxy holders will vote the Proxies received by them FOR the nominees named below.

Nominees for Class III Directors with a Term Expiring in 2022 (ages as of Annual Meeting date)

Other Directors

Set forth below is information concerning our other Directors whose term of office continues after this Annual Meeting.

Continuing Class I Directors with a Term Expiring in 2020 (ages as of Annual Meeting date)

Continuing Class II Directors with a Term Expiring in 2021 (ages as of Annual Meeting date)

Board Leadership/Independence

The Board of Directors separates the role of Chairman of the Board from the role of Chief Executive Officer. The Board of Directors has also designated Mr. Wood as the Lead Director. The Lead Director’s duties include presiding over executive sessions of the Company’s independent directors and serving as principal liaison between the non-employee directors, the Chief Executive Officer and the Chairman of the Board on sensitive issues. The Board believes that the appointment of the Lead Director and the separation of the Chairman and Chief Executive Officer roles currently provides the most efficient and effective leadership model for the Company as it encourages free and open dialogue regarding competing views and provides for strong checks and balances. Specifically, the balance of powers among our Chief Executive Officer, Chairman of the Board and Lead Director facilitates the active participation of our independent directors and enables our Board of Directors to provide more effective oversight of management. The Board of Directors has determined that Messrs. Bock, Lazar, Lowe, Sadana, Sooch and Wood and Mses. Richardson and Wyatt are each independent as defined in the applicable Marketplace Rules of the NASDAQ Stock Market, Inc. Independent directors met in executive session without the Chief Executive Officer and other non-independent directors present on four occasions during fiscal 2018.

Any member of our Board of Directors may resign at any time by delivering written notice to the Company. When a director resigns, a majority of the directors remaining in office shall have the power to fill the vacancy on the Board of Directors and the director so elected shall hold office for the unexpired portion of the term of the resigned director.

Committees and Meetings

During fiscal 2018, our Board of Directors held four regular meetings and no special meetings. Our Board of Directors has an Audit Committee, Compensation Committee, Nominating and Corporate Governance Committee and a Mergers and Acquisitions Committee. During fiscal 2018, each incumbent director attended or participated in substantially all of the aggregate of (i) the meetings of the Board of Directors and (ii) the meetings held by all committees of the Board of Directors on which such director served.

Audit Committee. The Audit Committee is responsible for matters relating to the selection of our independent registered public accounting firm, the scope of the annual audits, the fees to be paid to the independent registered public accounting firm, the performance of our independent registered public accounting firm, compliance with our accounting and financial policies, and management’s procedures and policies relative to the adequacy of our internal accounting controls. The members of the Audit Committee are Messrs. Lazar and Wood and Ms. Richardson. Mr. Lazar serves as Chairman of the Audit Committee. The Board of Directors has determined that Mr. Lazar is qualified as an audit committee financial expert pursuant to Item 407 of Regulation S-K and as a financially sophisticated audit committee member under Rule 5605(c)(2)(A) of the Marketplace Rules of the NASDAQ Stock Market, Inc. The Board of Directors has also determined that each of the members of the Audit Committee is independent as defined in the applicable Marketplace Rules of the NASDAQ Stock Market, Inc. and Rule 10A-3 under the Securities Exchange Act of 1934. The Board of Directors has adopted a written charter for the Audit Committee, a current copy of which is located on our Internet website under the “Investor Relations” page. Our Internet website address is http://www.silabs.com. See Appendix II for a copy of the Audit Committee Charter. The Audit Committee reviews and assesses the adequacy of its charter on an annual basis. The Audit Committee held five meetings during fiscal 2018.

Compensation Committee. The Compensation Committee reviews and approves all compensation to be provided to our executive officers and makes recommendations to the Board of Directors regarding our compensation of directors. In addition, the Compensation Committee has authority to administer our stock incentive and stock purchase plans. The members of the Compensation Committee are Messrs. Sadana and Lowe and Ms. Richardson. Mr. Sadana serves as Chairman of the Compensation Committee. The Board of Directors has determined that each of the members of the Compensation Committee is independent as defined in the applicable Marketplace Rules of the NASDAQ Stock Market, Inc. The Board of Directors has adopted a written charter for the Compensation Committee, a current copy of which is located on our Internet website under the “Investor Relations” page. Our Internet website address is http://www.silabs.com. The Compensation Committee reviews and assesses the adequacy of its charter on an annual basis. The Compensation Committee held six meetings during fiscal 2018.

Nominating and Corporate Governance Committee. The Nominating and Corporate Governance Committee focuses on issues related to the composition, practices and operations of the Board of Directors. In addition, the Nominating and Corporate Governance Committee has the authority to consider candidates for the Board of Directors recommended by stockholders and to determine the procedures with respect to such stockholder recommendations. The members of the Nominating and Corporate Governance Committee are Messrs. Sadana and Wood and Ms. Richardson. Mr. Wood serves as Chairman of the Nominating and Corporate Governance Committee. The Board of Directors has determined that each member is independent as defined in the applicable Marketplace Rules of the NASDAQ Stock Market, Inc. The Board of Directors has adopted a written charter for the Nominating and Corporate Governance Committee, a current copy of which is available on our Internet website under the “Investor Relations” page. The Nominating and Corporate Governance Committee recommended, and the Board of Directors approved, the Corporate Governance Policy, which is also located on our Internet website under the “Investor Relations” page. Our Internet website address is http://www.silabs.com. The Nominating and Corporate Governance Committee held four meetings during fiscal 2018.

Mergers and Acquisitions Committee. The Mergers and Acquisitions Committee reviews and makes recommendations to the Board of Directors regarding potential material acquisitions and divestitures. The members of the Mergers and Acquisitions Committee are Messrs. Bock, Lazar, Lowe and Sadana. Mr. Bock serves as Chairman of the Mergers and Acquisitions Committee. The Mergers and Acquisitions Committee held three meetings during fiscal 2018.

Director Nomination

In evaluating potential director candidates, the Nominating and Corporate Governance Committee considers the appropriate balance of experience, skills and characteristics required of the Board of Directors and seeks to ensure that at least a majority of the directors are independent under the applicable Marketplace Rules of the NASDAQ Stock Market, Inc. The Nominating and Corporate Governance Committee selects director nominees based on their personal and professional integrity, depth and breadth of experience, ability to make independent analytical inquiries, understanding of our business, willingness to devote adequate attention and time to duties of the Board of Directors and such other criteria as is deemed relevant by the Nominating and Corporate Governance Committee. The Company’s Corporate Governance Policy (approved by the Board of Directors) provides that the backgrounds and qualifications of the directors, considered as a group, should provide a diverse mix of experience, knowledge and skills. The Company does not have any other formal policy with respect to the diversity of our directors. The Nominating and Corporate Governance Committee considers the effectiveness of this policy and the effectiveness of the Board of Directors generally in the course of nominating directors for election.

In identifying potential director candidates, the Nominating and Corporate Governance Committee relies on recommendations made by current directors and officers. In addition, the Nominating and Corporate Governance Committee may engage a third party search firm to identify and recommend potential candidates. Finally, the Nominating and Corporate Governance Committee will consider candidates recommended by stockholders.

Any stockholder wishing to recommend a director candidate for consideration by the Nominating and Corporate Governance Committee must provide written notice not later than November 7, 2019 to the Corporate Secretary at our principal executive offices located at 400 West Cesar Chavez, Austin, Texas 78701. Any such notice should clearly indicate that it is a recommendation of a director candidate by a stockholder and must set forth (i) the name, age, business address and residence address of the recommended candidate, (ii) the principal occupation or employment of such recommended candidate, (iii) the class and number of shares of the corporation which are beneficially owned by such recommended candidate, (iv) a description of all understandings or arrangements between the stockholder and the recommended candidate and any other person or persons pursuant to which the recommendations are to be made by the stockholder and (v) any other information relating to such recommended candidate that is required to be disclosed in solicitations of proxies for the election of directors.

In addition, such notice must contain (i) a representation that the stockholder is a holder of record of stock of the corporation entitled to vote at such meeting, (ii) the name and address, as they appear on the corporation’s books, of the stockholder proposing such nomination, (iii) the class and number of shares of the corporation that are beneficially owned by

such stockholder, (iv) any material interest of the stockholder in such recommendation and (v) any other information that is required to be provided by the stockholder pursuant to Regulation 14A under the Securities Exchange Act of 1934, as amended, in such stockholder’s capacity as proponent of a stockholder proposal. Assuming that a stockholder recommendation contains the information required above, the Nominating and Corporate Governance Committee will evaluate a candidate recommended by a stockholder by following substantially the same process, and applying substantially the same criteria, as for candidates identified through other sources.

Attendance at Annual Meetings

The Board of Directors encourages all directors to attend our annual meetings of stockholders if practicable. All of the directors in office at the time of the annual meeting of stockholders held on April 19, 2018 attended such meeting.

Stockholder Communications with the Board of Directors

The Board of Directors maintains a process for stockholders to communicate with the Board of Directors or with individual directors. Stockholders who wish to communicate with the Board of Directors or with individual directors should direct written correspondence to our Corporate Secretary at our principal executive offices located at 400 West Cesar Chavez, Austin, Texas 78701. Any such communication must contain (i) a representation that the stockholder is a holder of record of stock of the corporation, (ii) the name and address, as they appear on the corporation’s books, of the stockholder sending such communication and (iii) the class and number of shares of the corporation that are beneficially owned by such stockholder. The Corporate Secretary will forward such communications to the Board of Directors or the specified individual director to whom the communication is directed unless such communication is deemed unduly hostile, threatening, illegal or similarly inappropriate, in which case the Corporate Secretary has the authority to discard the communication or to take appropriate legal action regarding such communication.

Code of Ethics

We have adopted a Code of Business Conduct and Ethics that applies to all officers, directors, employees and consultants. Our Code of Business Conduct and Ethics is located on our website under the “Investor Relations” page. Our website address is http://www.silabs.com.

Risk Management

Our Board of Directors oversees our management, which is responsible for the day-to-day issues of risk management. Such oversight is facilitated in large part by the Audit Committee, which receives reports from management, the internal audit team, and the Company’s independent registered public accounting firm. In addition, members of management (including the Chief Executive Officer, Chief Financial Officer and Chief Legal Officer) may also report directly to the Board of Directors on significant risk management issues.

Director Compensation and Indemnification Arrangements

Under the 2009 Stock Incentive Plan, on the date of the 2018 annual meeting of stockholders, the Board of Directors granted each non-employee director a Restricted Stock Unit (“RSU”) award that shall vest on approximately the first anniversary of the date of grant at no cost covering a number of shares of the Company’s common stock equal to $170,000 (or $225,000 for the Chairperson of the Board) divided by the average closing price of the Company’s common stock during the 30 trading days ending on the second trading day preceding the grant date; provided that any former employee of the Company must have served as a non-employee director for at least six months in order to receive such award. Accordingly, as Chairman of the Board, Mr. Sooch received a grant of 2,415 RSUs and Messrs. Bock, Lazar, Lowe, Sadana, Wood and Ms. Richardson each received a grant of 1,825 RSUs on the date of the 2018 annual meeting of stockholders.

During 2018, we paid our non-employee directors cash compensation consisting of (i) $50,000 per person per year, (ii) an additional $20,000 per year for the Chairman of the Audit Committee, (iii) an additional $9,000 per year for each Audit Committee member (excluding the Chairman), (iv) an additional $20,000 per year for the Chairman of the Compensation Committee, (v) an additional $9,000 per year for each Compensation Committee member (excluding the Chairman), (vi) an additional $10,000 per year for the Chairman of the Nominating and Corporate Governance Committee, (vii) an additional $5,000 per year for each Nominating and Corporate Governance Committee member (excluding the Chairman), (viii) an additional $20,000 per year for the Lead Director (ix) an additional $10,000 per year for the Chairman of the Mergers and Acquisitions Committee, (x) an additional $5,000 per year for each Mergers and Acquisitions Committee member (excluding the Chairman) and (xi) an additional $20,000 per year for the Chairman of the Board. Payments under the cash compensation plan are generally paid in equal quarterly installments on the last day of each fiscal quarter.

Cash compensation was pro-rated if the individual served less than the full year in a position.

Our certificate of incorporation limits the personal liability of our directors for breaches by them of their fiduciary duties. Our bylaws require us to indemnify our directors to the fullest extent permitted by Delaware law. We have also entered into indemnification agreements with all of our directors and have purchased directors’ and officers’ liability insurance.

In addition to the above compensation, we also reimburse non-employee directors for all reasonable out-of-pocket expenses incurred for attending board and committee meetings.

The following table provides summary information on compensation earned by each non-employee member of our Board of Directors in fiscal 2018.

Director Compensation Table for Fiscal 2018

Recommendation of the Board of Directors

Proposal Two: Ratification of Appointment of Independent Registered Public Accounting Firm

Our Audit Committee has appointed the firm of Ernst & Young LLP to serve as our independent registered public accounting firm for the fiscal year ending December 28, 2019. Ernst & Young LLP has audited our financial statements since our inception in 1996. A representative of Ernst & Young LLP is expected to be present at the Annual Meeting and will have an opportunity to make a statement if he or she so desires and will be available to respond to appropriate questions.

The following table presents fees for professional services rendered by Ernst & Young LLP for fiscal 2018 and 2017:

Audit Fees. Audit fees relate to services rendered in connection with the audits of the annual consolidated financial statements and attestation of management’s report on internal controls over financial reporting included in our Form 10-K, the quarterly reviews of financial statements included in our Form 10-Q filings, fees associated with SEC registration statements, assistance in responding to SEC comment letters, accounting consultations related to audit services and statutory audits required internationally.

Audit-Related Fees. Audit-related fees include services for assurance and other related services, such as consultations concerning financial accounting and reporting matters and due diligence related to mergers and acquisitions.

Tax Fees. Tax fees include services for tax compliance, research and technical tax advice.

All Other Fees. All other fees include the aggregate fees for products and services provided by Ernst & Young LLP that are not reported under “Audit Fees,” “Audit-Related Fees” or “Tax Fees.”

The Audit Committee is authorized by its charter to pre-approve all auditing and permitted non-audit services to be performed by our independent registered public accounting firm. The Audit Committee reviews and approves the independent registered public accounting firm’s retention to perform attest services, including the associated fees. The Audit Committee also evaluates other known potential engagements of the independent registered public accounting firm, including the scope of the proposed work and the proposed fees, and approves or rejects each service, taking into account whether the services are permissible under applicable law and the possible impact of each non-audit service on the independent registered public accounting firm’s independence from management. At subsequent meetings, the Committee will receive updates on the services actually provided by the independent registered public accounting firm, and management may present additional services for approval. The Committee has delegated to the Chairman of the Audit Committee the authority to evaluate and approve engagements on behalf of the Committee in the event that a need arises for pre-approval between Committee meetings. If the Chairman so approves any such engagements, he will report that approval to the full Audit Committee at its next meeting. During fiscal 2018, all such services were pre-approved in accordance with the procedures described above.

Our Audit Committee has reviewed the fees described above and believes that such fees are compatible with maintaining the independence of Ernst & Young LLP.

Stockholder ratification of the appointment of Ernst & Young LLP as our independent registered public accounting firm is not required by our bylaws or other applicable legal requirement. However, the appointment of Ernst & Young LLP is being submitted to the stockholders for ratification. If the stockholders fail to ratify the appointment, the Audit Committee will

reconsider whether or not to retain the firm. Even if the appointment is ratified, the Audit Committee at its discretion may direct the appointment of a different independent registered public accounting firm at any time during the year if it determines that such a change would be appropriate.

Recommendation of the Board of Directors

Proposal Three: Advisory Vote on Executive Compensation

The Dodd-Frank Wall Street Reform and Consumer Protection Act, enacted in July 2010, enables our stockholders to vote to approve, on an advisory (non-binding) basis, the compensation of our Named Executive Officers as disclosed in this Proxy Statement in accordance with the rules of the Securities and Exchange Commission.

This vote is advisory, and, therefore, not binding on the Company, the Compensation Committee, or our Board of Directors. However, our Board of Directors and our Compensation Committee value the opinions of our stockholders and to the extent there is any significant vote against the compensation of the Named Executive Officers as disclosed in this Proxy Statement, we will consider our stockholders’ concerns and the Compensation Committee will evaluate whether any actions are necessary to address those concerns.

As described in detail under the heading “Compensation Discussion and Analysis,” our executive compensation program is designed to attract, motivate, and retain the Named Executive Officers, who are critical to our success. Under this program, the Named Executive Officers are rewarded for the achievement of strategic and operational objectives and the realization of increased stockholder value. Please read the Compensation Discussion and Analysis and the accompanying compensation tables beginning on page 16 of this Proxy Statement for additional information about our executive compensation program, including information about the compensation of the Named Executive Officers in fiscal 2018.

The Compensation Committee regularly reviews our executive compensation program to ensure that it achieves the desired goal of aligning our executive compensation structure with the interests of our stockholders and current market practices.

We are asking our stockholders to indicate their support for the compensation of the Named Executive Officers as described in this Proxy Statement. This proposal, commonly known as a “Say-on-Pay” proposal, gives our stockholders the opportunity to express their views on the compensation of the Named Executive Officers. Please note that this vote is not intended to address any specific item of compensation, but rather the overall compensation of the Named Executive Officers and the philosophy, policies and practices described in this Proxy Statement.

We will ask our stockholders to vote “FOR” the following resolution at the Annual Meeting:

“RESOLVED, that the compensation paid to the Company’s Named Executive Officers as disclosed in this Proxy Statement is hereby approved.”

Recommendation of the Board of Directors

Other Matters

We know of no other matters that will be presented for consideration at the Annual Meeting. If any other matters properly come before the Annual Meeting, it is the intention of the persons named in the enclosed form of Proxy to vote the shares they represent as the Board of Directors may recommend. Discretionary authority with respect to such other matters is granted by the execution of the enclosed Proxy.

Ownership of Securities

The following table sets forth certain information known to us with respect to the beneficial ownership of our common stock as of January 31, 2019 by (i) all persons who were beneficial owners of five percent or more of our common stock, (ii) each director and nominee for director, (iii) the executive officers named in the Summary Compensation Table of the Executive Compensation section of this Proxy Statement and (iv) all then current directors and executive officers as a group. Unless otherwise indicated, each of the stockholders has sole voting and investment power with respect to the shares beneficially owned, subject to community property laws, where applicable.

Certain Relationships and Related Transactions, and Director Independence

Certain Relationships and Related Transactions

Our bylaws require us to indemnify our directors and executive officers to the fullest extent permitted by Delaware law. We have entered into indemnification agreements with all of our directors and executive officers and have purchased directors’ and officers’ liability insurance. In addition, our certificate of incorporation limits the personal liability of the members of our Board of Directors for breaches by the directors of their fiduciary duties.

Policies and Procedures with Respect to Related Party Transactions

Our Audit Committee Charter requires that the members of our Audit Committee, all of whom are independent directors, review and approve all related party transactions as described in Item 404 of Regulation S-K promulgated by the SEC. We have also adopted a written policy regarding the approval of all related party transactions. Under such policy, each of our directors and executive officers must notify the Corporate Secretary (who, in turn, will provide such information to the Audit Committee) of any proposed related party transactions. To assist with the identification of potential related party transactions, we solicit information through questionnaires in connection with the appointment of new directors and executive officers and on an annual basis with respect to existing directors and executive officers. The Chairman of the Audit Committee is delegated the authority to approve or ratify any related party transactions in which the aggregate amount involved is expected to be less than $1 million per year. All other proposed related party transactions are subject to approval or ratification by the Audit Committee except for certain categories of transactions that are deemed to be pre-approved by the Audit Committee. In determining whether to approve or ratify a related party transaction, the Audit Committee and the Chairman, if applicable, will take into account, among other factors deemed appropriate, whether the related party transaction is on terms no more favorable to the counterparty than terms generally available to an unaffiliated third-party under the same or similar circumstances and the extent of the related party’s interest in the transaction.

Our Code of Business Conduct and Ethics requires our executive officers and directors to disclose any conflicts of interest, including any material transaction or relationship involving a potential conflict of interest. No executive officer may work, including as a consultant or a board member, simultaneously for us and any competitor, customer, supplier or business partner without the prior written approval of our Chief Financial Officer or legal department. Furthermore, executive officers are encouraged to avoid any direct or indirect business connections with our competitors, customers, suppliers or business partners.

Pursuant to our Corporate Governance Policy, we expect each of our directors to ensure that other existing and future commitments do not conflict with or materially interfere with their service as a director. Directors are expected to avoid any action, position or interest that conflicts with our interests, or gives the appearance of a conflict. In addition, directors should inform the Chairman of our Nominating and Corporate Governance Committee prior to joining the board of another public company to ensure that any potential conflicts, excessive time demands or other issues are carefully considered.

Director Independence

See the subsection entitled “Committees and Meetings” in the section of this Proxy Statement entitled “Proposal One: Election of Directors.”

Audit Committee Report

The following is the report of the Audit Committee with respect to the audit of the fiscal 2018 audited consolidated financial statements of Silicon Laboratories Inc. (the “Company”):

Management is responsible for the Company’s internal controls and the financial reporting process. The independent registered public accounting firm is responsible for performing an independent audit of the Company’s consolidated financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States) and for issuing a report thereon. Additionally, the independent registered public accounting firm is responsible for performing an independent audit of the Company’s internal controls over financial reporting and for issuing a report thereon. The Committee’s responsibility is to monitor and oversee these processes.

In this context, the Committee has met and held discussions with management and the independent registered public accounting firm. Management represented to the Committee that the Company’s consolidated financial statements in the Annual Report were prepared in accordance with accounting principles generally accepted in the United States, and the Committee has reviewed and discussed the consolidated financial statements in the Annual Report with management and the independent registered public accounting firm. The Committee has discussed with the independent registered public accounting firm, Ernst & Young LLP, the required communications specified by auditing standards together with guidelines established by the SEC and the Sarbanes-Oxley Act.

The Company’s independent registered public accounting firm also provided to the Committee the written disclosures required by applicable requirements for the Public Company Accounting Oversight Board regarding the independent accountant’s communications with the Audit Committee concerning independence. The Audit Committee reviewed non-audit services provided by its independent registered public accounting firm for the last fiscal year and determined that those services are not incompatible with maintaining the independent registered public accounting firm’s independence.

Based upon the Committee’s discussion with management and the independent registered public accounting firm and the Committee’s review of the representation of management and the reports of the independent registered public accounting firm to the Committee, the Committee recommended that the Board of Directors include the audited consolidated financial statements in the Company’s Annual Report on Form 10-K for the fiscal year ended December 29, 2018 filed with the Securities and Exchange Commission.

Submitted by the Audit Committee of the Board of Directors:

Jack R. Lazar (Chairman)

Nina Richardson

William P. Wood

Executive Officers

Set forth below is information regarding the executive officers of Silicon Labs as of January 31, 2019 (ages as of Annual Meeting date).

G. Tyson Tuttle has served as a Director and our Chief Executive Officer since April 2012. Upon Mr. Bock’s retirement in February 2016, he also became President. Mr. Tuttle served as our Chief Operating Officer and Senior Vice President from May 2011 to April 2012. From January 2010 to May 2011, Mr. Tuttle served as our Chief Technical Officer. From May 2005 to December 2009, he was our Vice President and General Manager of Broadcast products including the audio and video product families. Mr. Tuttle joined Silicon Labs in 1997 as a senior design engineer. From 1999 to 2005, Mr. Tuttle served in a variety of product management, marketing and business leadership positions. Previously, Mr. Tuttle held senior design engineering positions at Crystal Semiconductor/Cirrus Logic and Broadcom Corporation where he focused on high-speed mixed-signal circuit design for mass storage and Ethernet applications. Mr. Tuttle holds an M.S. in Electrical Engineering from UCLA and a B.S. in Electrical Engineering from Johns Hopkins University. Mr. Tuttle has been granted over 70 patents covering many fundamental semiconductor inventions including key aspects of wireless communications.

John Hollister has served Silicon Labs as our Senior Vice President and Chief Financial Officer since June 2013. Prior to this role, Mr. Hollister was our Vice President, Business Development since April 2012 and also served as our Chief Information Officer from November 2012 to June 2013. Mr. Hollister served as our Vice President, Manufacturing and Asia Operations from November 2009 to April 2012. From April 2007 to October 2009, he was Managing Director, Asia Operations. Mr. Hollister joined Silicon Labs in 2004 and held financial management positions until April 2007. Prior to joining Silicon Labs, Mr. Hollister’s experience included Vice President of Finance at Cicada Semiconductor as well as various finance positions at Cirrus Logic, Veritas DGC, 3-D Geophysical and PricewaterhouseCoopers LLP. Mr. Hollister is a Certified Public Accountant and has a master’s degree in Accounting and a bachelor’s degree in Business Administration from the University of Texas at Austin.

Brandon Tolany has served as our Senior Vice President of Worldwide Sales since January 2016. Prior to joining Silicon Labs, Mr. Tolany served as Senior Vice President, Chief Sales and Marketing Officer at Freescale Semiconductor where he led global sales and marketing activities from 2013 to 2015. During his tenure at Freescale, Brandon progressed in a range of leadership positions including Vice President of Global Marketing for Microcontrollers and Director of Sales and Field Application Engineering for Freescale’s Americas West Region. Mr. Tolany started his career at Freescale in 2004 as a marketing manager for the i.MX applications processor product line. Prior to joining Freescale, Mr. Tolany was Director of Sales and Business Development for Luminent where he led global marketing efforts. He also served as a product manager at Mitsubishi Electric. Mr. Tolany holds a bachelor’s degree in Communications from the University of Texas at Austin.

Sandeep Kumar, PhD has served as our Senior Vice President of Worldwide Operations since July 2013. He previously served as Vice President of Operations Engineering from September 2009 to July 2013. He joined Silicon Labs in July 2006 and is responsible for worldwide operations. His team includes the manufacturing teams, CAD organization, process engineering and package engineering, product and test engineering, quality assurance, failure analysis, as well as the prototype production and reliability test labs. Dr. Kumar’s group drives the company technology strategy and supplier choices. Prior to joining Silicon Labs, Dr. Kumar managed global test engineering teams and was responsible for worldwide product and test engineering for the storage business at Agere Systems, Lucent Technologies and AT&T Bell Labs. Dr. Kumar has a bachelor’s degree in Electrical Engineering from the Indian Institute of Technology in Bombay, a M.S. in Electrical Engineering from the University of Evansville in Indiana and a Ph.D. in Electrical Engineering from Lehigh University.

He serves on the Electrical and Computer Engineering Department’s Industry Advisory Council for Southern Illinois University in Carbondale, IL.

Alessandro Piovaccari, PhD has served as our Senior Vice President and Chief Technology Officer since February 2015. He is responsible for the Company’s product and technology research and development. He joined Silicon Labs in 2003 to design the Company’s single-chip FM radio products and he co-architected the Company’s single-chip TV tuner IC. Previously, Dr. Piovaccari worked as a research scientist at Tanner Research joining in 1997 to develop CMOS neuro-inspired image processors. From 1998 to 2003, he was a member of the design services team at Cadence Design Systems, focusing on CMOS RFICs and high-speed SerDes IP development. Dr. Piovaccari holds 38 patents, is a Senior Member of IEEE, a Full Member of AES and a member of the Forbes Technology Council. Dr. Piovaccari received Laurea and PhD degrees in electronic engineering and computer science from the University of Bologna and a Post-Master’s Certificate with Honors in electrical engineering from Johns Hopkins University. Dr. Piovaccari also serves as a board member for the Skillpoint Alliance, as a member of the advisory council of UTeach Natural Sciences at The University of Texas at Austin, College of Natural Sciences, as an advisor for the Center for Leadership Education, G. W. Whiting School, John’s Hopkins University, and he is a part of the steering committee of the IEEE CICC conference.

Compensation Discussion and Analysis

This Compensation Discussion and Analysis provides information regarding the 2018 compensation program for our principal executive officer, principal financial officer, and three other most highly compensated executive officers of the Company. For 2018, these individuals were:

We refer to these executive officers collectively in this Proxy Statement as the “Named Executive Officers” or “NEOs.”

Here, we describe the material elements of our compensation program for the Named Executive Officers during 2018 as administered by the Compensation Committee of our Board of Directors (the “Compensation Committee”). This analysis also provides an overview of our executive compensation philosophy, including our principal compensation policies and practices, with respect to Named Executive Officers. Finally, it explains how and why the Compensation Committee arrived at the specific compensation decisions for our Named Executive Officers in 2018 and discusses the key factors that the Compensation Committee considered in determining their compensation.

2018 Business Results

Silicon Labs’ fiscal 2018 revenue was $868 million, up nearly $100 million, or 13% from fiscal 2017, including $37 million from the company’s April 2018 acquisition of Z-Wave. Continued growth in IoT and Infrastructure products was the key driver of these results. Silicon Labs delivered strong gross margins of 60.1% in 2018, up from 59.1% in 2017, reflecting the quality of the company’s products and served markets, as well as higher Infrastructure product mix. Operating income for the year increased slightly from 2017, while net income increased approximately 78%. For 2018, the company realized favorable tax benefits due to stock vesting at higher values than at the time of grant, and to adjustments related to ongoing updates to transition tax regulations associated with the Tax Cuts & Jobs Act. Interest expense related to the Company’s convertible notes increased due to a full year of interest in 2018 versus a partial year in 2017. Headcount grew approximately 18% from 2017 due to organic hiring and an acquisition.

Silicon Labs’ cash flow from operations has been positive nearly every quarter since it went public in 2000. In fiscal 2018, the company delivered operating cash flows of $174 million. The company ended the year with $620 million in cash, cash equivalents and investments, and is well-positioned to execute on its capital deployment strategy focusing on M&A and share repurchases. During 2018, the company returned $39 million to its shareholders through its share repurchase program. As of the end of 2018, the program had around $160 million in remaining authorization through fiscal 2019.

2018 Business Highlights

Significant Executive Compensation Actions

Our Compensation Committee, which consists entirely of independent directors, sets the compensation of our Named Executive Officers. For 2018, the Compensation Committee took the following actions with respect to the compensation of our Named Executive Officers:

Significant Corporate Governance Standards

We have endeavored to maintain high standards in our executive compensation and governance practices. The following policies remained in effect in 2018:

Compensation Philosophy

Our executive compensation program supports our long-term strategic and operational goals. It is intended to attract, motivate, and retain talented individuals to serve as our executive officers. The Compensation Committee designs the various components of our executive compensation program to be market competitive and support growth and profitability objectives while remaining aligned with our culture.

We hold our executives to high performance standards and our compensation plans for our CEO and other Named Executive Officers are designed to deliver competitive base pay and attractive incentive opportunities if performance is outstanding while delivering significantly lower actual compensation when performance is below our rigorous standards. To this end, a significant portion of target compensation for our executives is designed to be at risk.

Salaries are compared not only to our peer group listed below, but also to data from Radford Technology survey. Our target for salaries, considering data from each source, is market competitive. Our cash incentive plan, discussed below, is based primarily on achieving corporate targets, with only two of our Named Executive Officers having MBO targets. This plan targets above-market awards when the Company is performing and places cash incentives at risk when performance targets are not achieved. See also Annual Cash Incentive Bonus below.

In our equity program, in addition to time-based RSUs, we use two forms of performance shares, MSUs and PSUs, to maintain high performance standards in our long-term incentive plan. Our use of MSUs began in 2012 and has consistently been part of our long-term incentive strategy. We require significant levels of performance in terms of Total Shareholder Return (or “TSR”) relative to the Philadelphia Semiconductor Index (“XSOX” or “Index”) for MSUs to be earned at target levels.

In addition to MSUs, we use PSUs to incentivize and reward operational focus on revenue growth. With a target at 10% to 12% revenue growth year-over-year, PSUs provide zero reward for 5% or less revenue growth and, conversely, pays 200% of target upon achieving 17% revenue growth. The revenue growth factor is prorated for revenue growth between 5% and 10% and between 12% and 17% (i.e. if revenue growth is 9%, the revenue growth factor of 80% is applied to determine the PSU result). We believe these performance awards appropriately focus our executives on operational activities that drive sustained performance and growth.

This equity approach provides a strong alignment between pay-for-performance, operational results and retention of key executive talent. The design appropriately establishes a clear focus on TSR and year-over-year revenue growth. As such, our compensation program provides modest compensation when longer-term performance is below expectations. We believe that this approach optimally aligns the interests of management and our stockholders and results in the greatest emphasis on long-term stockholder value creation. For more information on the design of our equity programs and for awards granted in 2018, see “Long-term Incentives Equity Awards” below.

Compensation-Setting Process

Role of Compensation Committee. The Compensation Committee is responsible for administering our executive compensation program, as well as determining and approving the compensation for our Named Executive Officers. The Compensation Committee regularly reports to our Board of Directors on its deliberations and actions.

The Compensation Committee uses a balanced approach to set the compensation of our executive officers, with each primary direct component of compensation (base salary, annual cash incentive bonus, and long-term incentive compensation) designed to play a specific role in achieving this objective. The Compensation Committee determines the compensation of each executive officer with respect to each compensation component based, in part, on its own analysis of competitive market data and the recommendations of our CEO, both as described below. Additionally, the Compensation Committee periodically reviews whether our compensation policies and practices create any risks reasonably likely to have a material adverse impact on the Company and the steps that have or should be taken to monitor and mitigate such risks.

The Compensation Committee exercises its own judgment in making its compensation decisions and may accept or reject our CEO’s recommendations. In addition, the Compensation Committee receives input from its compensation consultant and meets in executive session (without our CEO present) prior to making its final determinations regarding compensation.

Differences in compensation among our executive officers are the result of the Compensation Committee’s exercise of its judgment, following its review of our CEO’s recommendations, its analysis of competitive market data and its consideration of overall Company performance, competitive pressures, business conditions and the potential financial impact of compensation decisions including dilution. Pay recommendations were based on competitive market data from the compensation consultant and a variety of other factors, including level of performance, the vesting and value of current equity grants, each individual’s tenure, prior experience, distinctive value to the Company, variances in job responsibilities relative to similarly titled officers at other companies and the appropriate mix of compensation elements (including base salary, cash incentives and equity incentives).

In determining the compensation of our CEO, the Compensation Committee consults with the other independent members of our Board of Directors, assesses our CEO’s individual performance and considers competitive market data and the other factors described above.

For our Named Executive Officers, the Committee targets market median for base salaries and targets greater than market total direct compensation when our stringent performance targets are achieved. The factors described above provide the framework for compensation decision-making and final decisions regarding the compensation opportunity for each Named Executive Officer. No single factor is determinative in setting pay levels, nor is the impact of any factor on the determination of pay levels quantifiable.

The Committee also noted that our stockholders approved our executive compensation practices pursuant to the advisory vote at our 2018 annual stockholders meeting and the Committee believes that our compensation practices are at least as favorable to the Company as those that were previously approved.

Role of Management. In carrying out its responsibilities, the Compensation Committee works with members of our management, including our CEO. Typically, our management assists the Compensation Committee by providing information on Company performance and its perspective on compensation matters. Our CEO generally attends Compensation Committee meetings (except with respect to discussions involving his own compensation).

Our CEO formulates recommendations regarding our executive officers’ compensation (except for his own compensation) for the Compensation Committee using the factors mentioned above and his performance evaluation. Our CEO does not use a specific formula.

Our CEO conducts this assessment with the assistance of our Chief People Officer. Our CEO then makes formal recommendations to the Compensation Committee, using data from Compensia and Radford, regarding adjustments to base salary, annual cash incentive bonus opportunities and equity awards for his team. Our CEO also recommends performance measures and related target levels for annual cash incentive bonuses and equity awards for his team.

The Compensation Committee solicits and reviews our CEO’s recommendations and proposals with respect to compensation-related matters. They reference this recommendation, among other factors, as they make compensation decisions for our executive officers.

Role of Compensation Consultant. The Compensation Committee is authorized to retain the services of compensation consultants and other advisors from time to time, as it sees fit, in connection with the administration of our executive compensation programs.

The Compensation Committee retained Compensia, Inc., a national compensation consulting firm providing executive compensation advisory services (“Compensia”), to provide competitive market data and analysis regarding material elements of compensation, including base salary, cash incentives and equity incentives. Compensia served at the discretion of the Compensation Committee. Compensia did not provide any other services to the Company in 2018.

With the approval of the Compensation Committee, Compensia also provides our CEO and our Chief People Officer with market data regarding compensation for our executive officers so that our CEO’s compensation recommendations to the Compensation Committee are consistent with our compensation philosophy.

Competitive Positioning. The Compensation Committee believes it is in the best interests of our stockholders to ensure that our executive compensation is competitive with that of other companies of similar size and complexity. In late 2017, the Compensation Committee directed Compensia to use data gathered from the 2017 Radford High-Technology Executive Compensation Survey and publicly-available information from the following companies to identify and analyze the competitive market for 2018 executive compensation:

Compensation Elements

The primary components of our executive compensation program are base salary, annual cash incentive bonus and equity awards. The Compensation Committee does not use a prescribed formula for allocating compensation between annual and long-term compensation, between cash and non-cash compensation, or among different forms of non-cash compensation.

Base Salary. The 2018 base salaries are set forth in the following table:

Annual Cash Incentive Bonus. Each year, the Compensation Committee adopts a bonus plan (the “Bonus Plan”) to reward exceptional performance and align the financial incentives of our Named Executive Officers with our short-term operating plan and long-term strategic objectives and the interests of our stockholders. The Compensation Committee approves the design, structure, and performance objectives, as well as each objective’s relative weighting, under the Bonus Plan. The Compensation Committee designs the Bonus Plan to pay each Named Executive Officer up to 150% of his target annual cash incentive bonus opportunity for outstanding performance. Consistent with our “pay-for-performance” philosophy, however, no payment is guaranteed if an executive officer fails to meet the minimum established performance objectives for his award opportunity under the Bonus Plan.

Typically, the Compensation Committee establishes one or more corporate financial metrics tied to our annual operating plan as the principal measures for determining each executive officer’s annual cash incentive bonus. For 2018, consistent with our business strategy, the Compensation Committee established adjusted revenue, adjusted operating income as a percentage of adjusted revenue and adjusted margin as the principal corporate financial metrics. For this purpose, “adjusted revenue” and “adjusted margin” and “adjusted operating income” mean revenue, gross margin and operating income (as a percentage of adjusted revenue) as determined under generally accepted accounting principles modified for intangible asset amortization, acquisition-related items, termination costs and impairments. These adjusted measures more clearly highlight the results of core ongoing operations. For purposes of cash incentive bonuses, the Compensation Committee reserves the authority to determine whether to exclude any item when making adjustments from the corresponding GAAP metric.

To reflect their functional roles and responsibilities, the Compensation Committee established corporate financial metrics as set forth in the table below for the purpose of determining the annual cash incentive bonuses for the Named Executive Officers. With respect to revenue and adjusted operating income, the percentage payout was determined using a sliding scale based on actual performance, with no minimum payout and a maximum payout of 150% of the executive’s target annual cash incentive bonus opportunity for above-target performance. The plan allowed for 100% payout at 100% of plan target. For the adjusted revenue component, there was a decreasing scale to 10% at 90% of plan target, no payment below 90% of target and a maximum payout of 150% at 110% of target. For the adjusted margin and operating income components, there was a decreasing scale to 10% at 80% of plan target, no payment below 80% of target and a maximum payout of 150% at 120% of target.

For 2018, the target annual cash incentive bonus opportunities and the relative weighting of the corporate financial metrics in their capacities as Named Executive Officers were as follows:

Award Decisions and Analysis. To ensure a direct correlation between our short-term performance and our actual business results, the Compensation Committee makes quarterly payments to our Named Executive Officers under the Bonus Plan. Each fiscal quarter, bonus payments are made to the extent we have achieved our pre-established corporate financial metrics.

Our Board of Directors and the Compensation Committee may exercise discretion either to make payments absent attainment of the relevant performance metric target levels or to reduce or increase the size of any award payment. Neither the Board of Directors nor the Compensation Committee exercised such discretion in 2018.

For each of the Named Executive Officers, the portion of his target annual cash incentive bonus opportunity that was attributable to these corporate financial metrics was allocated over the four fiscal quarters of 2018 in proportion to the

amount of revenue that we estimated we would generate in each such quarter as reflected in our 2018 annual operating plan approved by our Board of Directors. Our Board of Directors established quarterly target levels with respect to the annual operating plan for each of the corporate financial metrics.

Messrs. Tuttle, Hollister and Dr. Kumar’s bonus payments were directly tied to the achievement of our corporate financial metrics. Mr. Tolany and Dr. Piovaccari’s bonus targets included both corporate financial metrics and a functional Management Bonus Objective (“MBO”) component. MBO payments are based on the achievement of individual goals, which are designed to support our short and long term corporate objectives.

Mr. Tuttle’s cash incentive bonus was based solely on Company financial targets with 50% of the incentive based on Adjusted Revenue and 50% based on Adjusted Operating Income. The Adjusted Revenue portion of his bonus paid out at 72.9%of target and Adjusted Operating Income paid out at 96.8%. This resulted in a total bonus payout of 81.7% of target.

Mr. Hollister’s cash incentive bonus also was based solely on Company financial targets with 50% of the incentive based on Adjusted Revenue and 50% based on Adjusted Operating Income. The Adjusted Revenue portion of his bonus paid out at 72.9%% of target and Adjusted Operating Income paid out at 96.8%. This resulted in a total bonus payout of 81.7% of target.

Mr. Tolany’s cash incentive bonus metrics also included financial and MBO targets. Mr. Tolany’s incentive was based 50% on adjusted revenue, where he achieved 72.9% of his target for 2018, and also included an MBO with respect to 50% of the total cash incentive bonus. His MBO targets were based on quarter over quarter growth in design wins and lifetime revenue associated with those wins. Mr. Tolany received a score of 150% for his MBO target achievement in 2018, making his total incentive achieved 110.1% for the year.

Dr. Kumar’s cash incentive bonus was based solely on Company financial targets with 50% of the incentive based on Adjusted Revenue and 50% based on Adjusted Margin. The Adjusted Revenue portion of his bonus paid out at 72.9% of target and the Adjusted Margin portion paid out at 96.7%. This resulted in a total bonus payout of 83.0% of target.

Dr. Piovaccari’s cash incentive bonus metrics included both Company financial and individual MBO targets. With respect to his financial targets, the cash incentive bonus was based 25% on adjusted revenue and 25% on adjusted operating income; these portions of his target cash incentive bonus paid out at 72.9% and 96.8%, respectively. Dr. Piovaccari’s MBO, based on timely product launches in 2018, informed 50% of his bonus. Dr. Piovaccari received a score of 100% for his MBO and his total incentive achieved was 90.9% for 2018.

Appendix I provides a reconciliation of GAAP and non-GAAP executive compensation financial measures and shows the corporate financial metric targets and actual performance against those targets for 2018.

The resulting payments to the continuing Named Executive Officers were as follows:

The cash incentive bonus paid to the Named Executive Officers during 2018 are set forth in the Summary Compensation Table below under the heading “Non-Equity Incentive Plan Compensation.”

Long-Term Incentive Equity Awards. The Compensation Committee uses long-term incentive compensation, typically in the form of equity awards, for our Named Executive Officers, to retain talent, to align their interests with the interests of our stockholders and to provide incentives that we believe encourage behaviors that will maximize stockholder value. For 2018, the Compensation Committee approved the use of a mix of MSUs, PSUs and RSUs.

MSU Awards. Since 2011 we have awarded MSUs that compare our TSR against the XSOX. For MSU awards granted prior to 2017, a payment equal to the target number of units can only be earned if our TSR exceeds the TSR results of the Index by 25 points. Where our TSR is either greater or lower than the Index results, payment is scaled 1.54 to 1, as shown in MSU Scale A.

MSU Scale A

For MSU awards granted in 2017 and 2018, a payment equal to the target number of units can be earned if our TSR is equal to the results of the XSOX. Payment is scaled 2 to 1 if our TSR exceeds the XSOX, and 3 to 1 when our TSR is lower than the XSOX, as shown in MSU Scale B.

MSU Scale B

Our MSUs include the following features:

Cap on MSU payouts if TSR is negative. Our Compensation Committee included a cap on MSU payouts such that in the event our TSR is negative, the maximum payout under the MSUs would be 100% of the target award (regardless of the amount of TSR outperformance relative to the XSOX). This feature was added to reflect leading best practices in program design and to further strengthen the program from a pay-for-performance and shareholder alignment perspective.

One-and two-year measurement points. In order to further promote sustained performance and to support multi-year retention, our awards provide an opportunity for our executives to “bank” up to one-third of their target award

based on relative TSR performance after one-and two-years. The remaining one-third of the target award opportunity and all potential upside opportunity remains reserved for the three-year measurement period. All shares earned or banked are settled at the end of the three-year period to maximize the retentive value of the awards. Pursuant to the payment scale above, in order for the target number of shares to be “banked” for one-or two-year performance, our TSR must exceed that of the XSOX by 25 points or more in the applicable performance period for grants prior to 2017. For achievement of target grants in 2017 and 2018, our TSR must equal that of the XSOX in the applicable performance period. Grants prior to 2017 continue to be measured using MSU Scale A. MSU grants made in 2017 and 2018 are measured using MSU Scale B.

PSU Awards. The Compensation Committee granted PSUs in 2018 to align our executive’s incentives with our revenue growth expectations. The PSUs measure revenue during a single fiscal year relative to revenue for the preceding fiscal year. The number of eligible PSUs is a product of the (a) target number of units and (b) the revenue growth factor. The revenue growth factor is scaled on a performance matrix where 5% or less revenue growth results in zero units, 17% or greater revenue growth results in 200% of the target units and shall be prorated for Revenue Growth falling between 5% and 10% and between 12% and 17%, with each credited 0.05% of Revenue Growth equal to a Revenue Growth Factor of 1%. Revenue Growth of between 10% and 12% results in 100% of the target units. Accordingly, less than 10% revenue growth results in below-target units. The eligible PSUs vest after three years of service following the date of grant.

RSU Awards. The RSUs awarded in 2018 provide a retention incentive and align the interests of our executive officers with those of our stockholders. These RSUs generally vest as to the underlying shares of common stock in three annual installments on each anniversary of the date of grant.

The Named Executive Officers were granted the following MSU, PSU and RSU awards during 2018:

Actual Performance of Plan-Based Awards. The following table contains information concerning PSU and MSU award performance in fiscal year 2018. For shares earned and unearned, see table Outstanding Equity Awards at Fiscal 2018 Year-End.

Performance – MSU Grants awarded to NEOs* from FY16 to FY18

Performance – PSU Grants awarded to NEOs in FY18

CEO Pay Ratio

The CEO Pay Ratio analysis is a required disclosure enacted by the Securities and Exchange Commission (“SEC”) pursuant to the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”).

A reasonable estimate was prepared of our CEO’s annual total compensation for fiscal year 2018 to our median employee for the same period. The 2018 calculation of all employees’ compensation was determined in the same manner as the “Total Compensation” shown for our CEO in the “Summary Compensation Table” with some adjustments necessary to report all amounts in US currency.

Pay elements included in the annual total compensation for our median employee may include all or some of the following:

Our calculations were prepared based on our median employee as of December 31, 2018.

We determined the compensation of our median employee by calculating the total annual compensation using the applicable components above and since our 2017 median employee terminated as an employee of the Company during 2018, we selected the next similarly situated employee from the 2017 analysis ranking employees (excluding our CEO) from highest to lowest paid.

The total annual compensation for our CEO as represented in the Summary Compensation Table was $6,077,880 and our Year 2 median employee was $151,356. The resulting ratio is 40.2 to 1.

Post-Employment Compensation

The equity awards granted to our Named Executive Officers under the Company’s 2009 Stock Incentive Plan, as amended and restated on April 20, 2017, and Change in Control Agreements approved by the Board on October 23, 2018 provide for accelerated vesting of any unvested shares in the event that (i) such equity awards are not assumed or replaced by the acquiring entity in connection with a change in control of the Company or (ii) the Named Executive Officer is demoted, relocated, or terminated other than for misconduct within the period beginning upon the earlier of our execution of a definitive agreement that results in a change in control or 90 days prior to a change in control and ending 18 months following the change in control transaction. We have provided for this treatment based on our belief that such treatment ensures that the executive officers remain focused on their responsibilities in the event of a potential transaction that will result in a significant benefit to our stockholders. Additionally, the Change in Control Agreements provide twelve months of base salary, target bonus and twelve months of COBRA should said events take place. The terms and conditions of these change in control provisions are provided at a level that the Compensation Committee believes to be comparable to those of companies of similar size in our industry sector.

Welfare, Retirement, and Other Benefits

Welfare Benefits. The Company maintains an array of benefit programs to meet the health care and welfare needs of our employees including medical and prescription drug coverage, dental and vision programs, medical and dependent care flexible spending accounts, short-term disability insurance, long-term disability insurance, accidental death and dismemberment insurance, and group life insurance, as well as customary vacation, paid holiday, leave of absence and other similar policies. Our executive officers, including the Named Executive Officers, participate in these benefit programs on the same general terms as all of our salaried employees.

Retirement Benefits. The Company has established a tax-qualified Section 401(k) retirement savings plan for our employees. Our executive officers, including the Named Executive Officers, are eligible to participate in this plan on the same general terms available to all of our full-time employees. Currently, plan participants are provided with matching contributions that are subject to time-based vesting conditions. It is intended that this plan qualify under Section 401(a) of the Internal Revenue Code so that contributions by participants to the plan, and income earned on plan contributions, are not taxable to participants until withdrawn from the plan. Our executive officers, including the Named Executive Officers, do not receive any retirement benefits beyond those generally available to our full-time employees.

Perquisites and Other Personal Benefits. In addition to the general welfare benefits described above, the Compensation Committee has determined that we provide our executive officers, including the Named Executive Officers, with an annual physical examination beyond the benefit provided under our standard health care plans.

The Compensation Committee does not view perquisites or other personal benefits as a significant component of our executive compensation program and, except as described in the preceding paragraph, did not provide any perquisites or other personal benefits to our executive officers during 2018.

Income Tax and Accounting Considerations

Deductibility of Executive Compensation.

Section 162(m) of the Internal Revenue Code, as amended by the Tax Cuts and Jobs Act of 2017 (the TCJA), effective for taxable years beginning on or after January 1, 2018, generally disallows a deduction for federal income tax purposes to any

publicly traded corporation of remuneration in excess of $1 million paid in any taxable year to its covered employees, consisting of the principal executive officer, principal financial officer and the three other most highly-compensated executive officers for the taxable year. Further, any executive officer who was a covered employee for any taxable year beginning after December 31, 2016 will continue to be treated as a covered employee in all future years. Prior to the amendment, qualifying “performance-based compensation” was not subject to the deduction limitation if specified requirements were met. Under the TCJA, the performance-based compensation exception has been repealed. The prior Section 162(m) provisions will, however, continue to apply to remuneration paid pursuant to binding written contracts in effect on November 2, 2017 and that are not materially modified after that date.

The Compensation Committee believes that its primary responsibility is to provide a compensation program to meet our stated business objectives, and accordingly the Company reserves the right to pay compensation that is not tax-deductible if it determines that such a payment is in the best interests of the Company and our stockholders.

Accounting Treatment of Executive Compensation. The Company follows Financial Accounting Standards Board Accounting Standards Codification Topic 718 (“ASC Topic 718”) for our stock-based awards. ASC Topic 718 requires companies to measure the compensation cost for all stock-based awards made to employees (including our executive officers) and directors, including stock options and restricted stock awards, based on the grant date “fair value” of these awards. This calculation is performed for accounting purposes and reported in the compensation tables below, even though our executive officers may never realize any value from their awards. ASC Topic 718 also requires companies to recognize the compensation cost of their stock-based awards in their income statements over the period that an executive officer is required to render service in exchange for his or her award.

Compensation Committee Report on Executive Compensation

We, the Compensation Committee of the Board of Directors, have reviewed and discussed the Compensation Discussion and Analysis within the Executive Compensation section of this Proxy Statement with the management of the Company. Based on such review and discussion, we are of the opinion that the executive compensation policies and plans provide appropriate compensation to properly align Silicon Labs’ performance and the interests of its stockholders through the use of competitive and equitable executive compensation in a balanced and reasonable manner, for both the short- and long-term. Accordingly, we have recommended to the Board of Directors that the Compensation Discussion and Analysis be included as part of this Proxy filing.

Submitted by the Compensation Committee of the Board of Directors:

Sumit Sadana (Chairman)

Gregg Lowe

Nina Richardson

Summary Compensation

The following table provides compensation information for our Named Executive Officers for fiscal 2018.

Summary Compensation Table

Grants of Plan-Based Awards

The following table contains information concerning all equity and non-equity plan-based awards granted during fiscal 2018 to our Named Executive Officers. All equity plan-based awards were granted under our 2009 Stock Incentive Plan, as amended and restated on April 20, 2017, and all non-equity plan-based awards were granted under our 2018 Bonus Plan.

Grants of Plan-based Awards Table for Fiscal 2018

Outstanding Equity Awards at Fiscal Year-End

The following table shows all holdings of unexercised stock options and unvested RSU, MSU and PSU awards for each of our Named Executive Officers as of December 29, 2018.

Outstanding Equity Awards at Fiscal 2018 Year-End Table

Option Exercises and Stock Vested Table

The following table shows gains realized from the exercise of stock options and shares acquired upon the vesting of stock awards with respect to our Named Executive Officers during fiscal 2018.

Option Exercises and Stock Vested Table During Fiscal 2018

Potential Payments Upon Termination upon Change in Control

Consistent with practices within our industry, we also provide certain post-employment termination benefits. We have implemented these programs in order to ensure we are able to continue to attract and retain top talent as well as ensure that during the uncertainty associated with a potential change in control or succession plan, the executives remain focused on their responsibilities and ensure a maximum return for our stockholders.

Change in Control Agreements. In October 2018, we entered into Change in Control Agreements with Messrs. Tuttle, Hollister Tolany and Drs. Kumar and Piovaccari. Each of the Change in Control Agreements is effective until October 31, 2021. Following a review of market practices, the Compensation Committee revised our CEO Change in Control Agreement to provide for the following potential payments and benefits upon a Change in Control Termination (as defined in the agreement): (a) 200% of annual base salary, (b) 200% of target variable compensation for a full fiscal year, (c) stock options, restricted stock, and restricted stock units shall become fully vested, (d) market stock units and performance stock units shall be vested at the greater of 100% of the target value or the actual earned value and (e) a lump sum equal to the pre-tax

cost of 24 months of continued COBRA coverage after the deduction for tax withholding. Consistent with the same market review, the agreements in place with Named Executive Officers were updated and are effective through October 31, 2021.    Each of the remaining NEO Change in Control Agreements provides for the following potential payments and benefits upon a Change in Control Termination (as defined in the agreement): (a) 100% of annual base salary, (b) 100% of target variable compensation for a full fiscal year, (c) stock options, restricted stock, and restricted stock units shall become fully vested, (d) market stock units and performance stock units shall be vested at the greater of 100% of the target value or the actual value earned and (e) a lump sum equal to the pre-tax cost of 12 months of continued COBRA coverage after the deduction for tax withholding. Change in Control Termination occurs if the executive officer is demoted, relocated, or terminated other than for misconduct within the period beginning upon the earlier of our execution of a definitive agreement that results in a change in control or 90 days prior to a change in control and ending 18 months following the change in control transaction.

Equity Compensation. At our 2009 annual stockholders’ meeting, our stockholders approved the 2009 Stock Incentive Plan (the “2009 Plan”) and the 2009 Plan became effective immediately. On April 15, 2014, our stockholders approved amendments of the 2009 Plan. The amendments updated the 2009 Plan to comply with changes in local laws, authorized additional shares of common stock for future issuance, improved the Company’s corporate governance and implement other best practices. The 2009 Plan was subsequently amended and restated on April 20, 2017 upon approval by our stockholders, in order to authorize additional shares of common stock for future issuance under the 2009 Plan, to establish limits on the value of awards that may be granted to our non-employee directors in any calendar year, to comply with changes in applicable law and to make certain other administrative changes. Under our prior 2000 Stock Incentive Plan (the “2000 Plan”), no shares remain issuable except for those that were subject to outstanding awards as of the date of approval of the 2009 Plan. The 2009 Plan and the 2000 Plan (together, the “Plans”) govern the equity awards granted to our Named Executive Officers and other participants.

The Plans include the following general change in control provisions, which may result in the accelerated vesting of outstanding stock options and stock awards:

The following table depicts potential compensation arrangements with our NEOs as a result of a change in control that subsequently results in involuntary termination. Such termination is assumed to occur on December 28, 2018, the last business day of our fiscal 2018.

Compensation Committee Interlocks and Insider Participation

None of our executive officers serves as a member of the Board of Directors or Compensation Committee of any entity that has one or more of its executive officers serving as a member of our Board of Directors or Compensation Committee. No member of the Compensation Committee currently serves as one of our officers or employees.

Equity Compensation Plan Information

The following table provides information on the Company’s shares of common stock as of December 29, 2018 that may be issued under existing equity compensation plans.

Equity Compensation Plan Information

No Incorporation by Reference of Certain Portions of this Proxy Statement

Notwithstanding anything to the contrary set forth in any of our filings made under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, that might incorporate information in this Proxy Statement, neither the Audit Committee Report nor the Compensation Committee Report is to be incorporated by reference into any such filings as provided by SEC regulations. In addition, this Proxy Statement includes certain website addresses intended to provide inactive, textual references only. The information on these websites shall not be deemed part of this Proxy Statement.

Section 16(a) Beneficial Ownership Reporting Compliance

The members of our Board of Directors, the executive officers and persons who hold more than 10% of our outstanding common stock are subject to the reporting requirements of Section 16(a) of the Securities Exchange Act of 1934 which require them to file reports with respect to their ownership of the common stock and their transactions in such common stock. Based upon (i) the copies of Section 16(a) reports which we received from such persons for their fiscal 2018 transactions in the common stock and their common stock holdings and (ii) the written representations received from one or more of such persons, we believe that all reporting requirements under Section 16(a) for such fiscal year were met in a timely manner by our directors, executive officers and greater than 10% beneficial owners.

Annual Report

A copy of the Annual Report for fiscal 2018 has been mailed concurrently with this Proxy Statement to all stockholders entitled to notice of and to vote at the Annual Meeting. The Annual Report is not incorporated into this Proxy Statement and is not considered proxy solicitation material.

Form 10-K

We filed an Annual Report on Form 10-K with the SEC on January 30, 2019. Stockholders may obtain a copy of our Annual Report, without charge, by writing to our Corporate Secretary at our principal executive offices located at 400 West Cesar Chavez, Austin, Texas 78701.

THE BOARD OF DIRECTORS OF SILICON LABORATORIES INC.

Dated: March 7, 2019

Appendix I: Reconciliation of GAAP to Non-GAAP Executive Compensation Financial Measures

The non-GAAP financial measurements provided herein do not replace the presentation of Silicon Labs’ GAAP financial results. These non-GAAP measurements merely provide supplemental information to assist investors in analyzing Silicon Labs’ financial position and results of operations in connection with executive compensation; however, these measures are not in accordance with, or an alternative to, GAAP and may be different from non-GAAP measures used by other companies or non-GAAP measures used in other contexts by Silicon Labs. We are providing this information because it may enable investors to perform meaningful comparisons of operating results, and more clearly highlight the results of core ongoing operations in connection with executive compensation.

Unaudited Reconciliation of GAAP to Non-GAAP Executive Compensation Financial Measures (In thousands)