X0306 4 2018-04-02 0 0001579910 Resonant Inc RESN 0001488471 Killian Jeffrey A C/O RESONANT INC. 110 CASTILIAN DRIVE, SUITE 100 GOLETA CA 93117 0 1 0 0 Chief Financial Officer Common Stock 2018-04-02 4 M 0 12500 A 58950 D Common Stock 2018-04-03 4 S 0 5265 3.4492 D 53685 D Restricted Stock Units 2018-04-02 4 M 0 12500 0 D Common Stock 12500 125000 D Each restricted stock unit represents a contingent right to receive one share of Resonant Inc. common stock. On April 2, 2018, 12,500 of the reporting person's restricted stock units were settled for an equal number of shares of common stock. This transaction was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person to satisfy the reporting person's tax withholding obligations upon the vesting of restricted stock units. This transaction was executed in multiple trades at prices ranging from $3.40 to $3.55. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. 12,500 shares vest on the first business day of each calendar quarter until fully vested, with the first installment vesting on January 3, 2017. /s/Jeffrey A. Killian 2018-04-03