X0306 4 2017-09-12 0 0001370702 QUANTENNA COMMUNICATIONS INC QTNA 0001688236 Bonnot Lionel C/O QUANTENNA COMMUNICATIONS, INC. 3450 W. WARREN AVENUE FREMONT CA 94538 0 1 0 0 SVP Mktg & Business Dev. Common Stock 2017-09-12 4 M 0 8600 1.50 A 25784 D Common Stock 2017-09-12 4 S 0 8600 17.777 D 17184 D Employee Stock Option (right to buy) 1.50 2017-09-12 4 M 0 8600 0.00 D 2022-06-27 Common Stock 8600 57227 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 automatic trading plan adopted by the Reporting Person. This sale price represents the weighted average sale price of the shares sold ranging from $17.56 to $18.00 per share. Upon request by the Commission staff, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price within the range set forth in this Form 4. The shares subject to the option are fully vested and exercisable. /s/ Tom MacMitchell, as Attorney-in-Fact 2017-09-14