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:

☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material Pursuant to §240.14a-12

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):

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Important Notice Regarding the Availability of Proxy Materials for the Stockholder Meeting

to be held on April 22, 2021, for Silicon Laboratories Inc.

This communication is not a form of voting and presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. To view the proxy statement and annual report, go to www.proxydocs.com/SLAB. To submit your proxy while visiting this site, you will need the 12 digit control number in the box below.

Under United States Securities and Exchange Commission rules, proxy materials do not have to be delivered in paper. Proxy materials can be distributed by making them available on the Internet. We have chosen to use these procedures for our 2021 Annual Meeting and need YOUR participation.

If you want to receive a paper or e-mail copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. In order to receive a paper package in time for this year’s annual meeting, please make this request on or before April 12, 2021.

For a Convenient Way to VIEW Proxy Materials – and – To VOTE Online go to: www.proxydocs.com/SLAB

Proxy Materials Available to View or Receive:

1. Proxy Statement    2. Annual Report

Printed materials may be requested by one of the following methods:

INTERNET	TELEPHONE	*E-MAIL
www.investorelections.com/SLAB	(866) 648-8133	paper@investorelections.com
You must use the 12 digit control number located in the shaded gray box below.		* If requesting material by e-mail, please send a blank e-mail with the 12 digit control number (located below) in the subject line. No other requests, instructions or other inquiries should be included with your e-mail requesting material.

ACCOUNT NO. SHARES

Silicon Laboratories Inc. Notice of Annual Meeting

	Date:	Thursday, April 22, 2021
	Time:	9:00 A.M. (Central Daylight Time)
	Place:	Annual Meeting to be held live via the Internet – please visit www.proxydocs.com/SLAB for more details

The purpose of the Annual Meeting is to take action on the following proposals:

The Board of Directors recommends that you vote “FOR” each of the nominees listed below.

1. Election of Class II Directors

                01 G. Tyson Tuttle                 02 Sumit Sadana                 03 Gregg Lowe

The Board of Directors recommends that you vote “FOR” the following.

2. To ratify the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending January 1, 2022.

3. To vote on an advisory (non-binding) resolution to approve executive compensation.

4. To approve amendments to the 2009 Stock Incentive Plan.

5. To approve amendments to the 2009 Employee Stock Purchase Plan.

To Attend the Annual Meeting of Silicon Laboratories Inc., please visit www.proxydocs.com/SLAB to register for the Virtual Meeting at least 2 days prior to the meeting date. The control number located in the shaded gray box will be required to register.