X0306 4 2022-06-13 0 0001389002 MARIN SOFTWARE INC MRIN 0001570714 Lien Christopher A. C/O MARIN SOFTWARE INCORPORATED 123 MISSION ST, 27TH FLOOR SAN FRANCISCO CA 94105 1 1 0 0 CEO Restricted Stock Units 0.00 2022-06-13 4 A 0 80000 0.00 A Common Stock 80000 80000 D Each restricted stock unit ("RSU") represents a contingent right to receive one (1) share of the Issuer's Common Stock upon settlement. 50% of the RSUs vest on each of June 13, 2023 and June 13, 2024, subject to the continuing employment of the Reporting Person on each vesting date. Shares of the Issuer's common stock will be delivered to the Reporting Person upon vesting. /s/ Christopher A. Lien by Robert Bertz, Attorney-in-Fact 2022-06-15