Important Additional Information and Where to Find It

In connection with the proposed transaction, Quantenna will file with the SEC and mail or otherwise provide to its stockholders a proxy statement regarding the proposed transaction. BEFORE MAKING ANY VOTING DECISION, QUANTENNA’S STOCKHOLDERS ARE URGED TO CAREFULLY READ THE PROXY STATEMENT IN ITS ENTIRETY WHEN IT BECOMES AVAILABLE AND ANY OTHER DOCUMENTS FILED WITH THE SEC IN CONNECTION WITH THE PROPOSED TRANSACTION OR INCORPORATED BY REFERENCE THEREIN BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION AND THE PARTIES TO THE PROPOSED TRANSACTION. Investors and security holders may obtain a free copy of the proxy statement and other documents that Quantenna files with the SEC (when available) from the SEC’s website at www.sec.gov and Quantenna’s website at http://ir.quantenna.com/investor-overview. In addition, the proxy statement and other documents filed by Quantenna with the SEC (when available) may be obtained from Quantenna free of charge by directing a request to Vernon Essi, Jr., Investor Relations, Quantenna Communications, Inc., 1704 Automation Parkway, San Jose, California 95131, Phone: (669) 209-5647. Media inquiries can be directed to Vernon Essi, Jr. at vessi@quantenna.com, Phone: (669) 209-5647.

Certain Participants in the Solicitation

Quantenna, its directors and certain of its executive officers and employees may be deemed, under SEC rules, to be participants in the solicitation of proxies from Quantenna stockholders with respect to stockholder approval of the proposed acquisition of Quantenna. Information regarding the names of Quantenna’s directors and executive officers and their respective interests in Quantenna by security holdings or otherwise is set forth in Quantenna’s Annual Report on Form 10-K for the fiscal year ended December 30, 2018 filed with the SEC on March 1, 2019, Quantenna’s definitive proxy statement for its 2018 Annual Meeting of Shareholders filed with the SEC on April 25, 2018 and Quantenna’s Current Reports on Form 8-K dated June 8, 2018 and August 31, 2018. To the extent holdings of such participants in Quantenna’s securities are not reported, or have changed since the amounts described in the proxy statement for the 2018 Annual Meeting of Shareholders, such changes have been reflected on Initial Statements of Beneficial Ownership on Form 3 or Statements of Change in Ownership on Form 4 filed with the SEC. Additional information regarding the interests of such individuals in the proposed transaction will be included in the proxy statement relating to such acquisition when it is filed with the SEC. These documents may be obtained free of charge from the SEC’s website at www.sec.gov and Quantenna’s website at http://ir.quantenna.com/investor-overview.

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Kris Pugsley
Corporate Media Communications
ON Semiconductor
(312) 909-0661
Email Contact

Parag Agarwal
Vice President - Investor Relations & Corporate Development
ON Semiconductor
(602) 244-3437
Email Contact

Vernon Essi, Jr.
Director of Investor Relations and Strategic Finance
Quantenna Communications, Inc.
(669) 209-5647
Email Contact