X0306 4 2018-06-05 0 0001370702 QUANTENNA COMMUNICATIONS INC QTNA 0001199039 STEVENS MARK A C/O QUANTENNA COMMUNICATIONS, INC. 1704 AUTOMATION PARKWAY SAN JOSE CA 95131 1 0 0 0 Common Stock 2018-06-05 4 A 0 8317 0.00 A 14933 D Common Stock 52292 I See footnote Common Stock 15000 I See footnote Each share is represented by a Restricted Stock Unit ("RSU"). 100% of the RSUs will vest upon the earlier of the one (1) year anniversary of the grant date or the day prior to the Company's next Annual Meeting occurring after the grant date, in each case, subject to the Reporting Person's continued service as of the applicable vesting date. Shares held by Third Millennium Trust ("Millennium"). The Reporting Person is the trustee of Millennium, and has voting and investment power with respect to the shares held by Millennium. Shares held by S-Cubed Capital ("SCC"). The Reporting Person is the managing partner of SCC, and has voting and investment power with respect to the shares held by SCC. /s/ Tom MacMitchell, as Attorney-in-Fact 2018-06-07