X0508 4 2023-08-31 0 0001389002 MARIN SOFTWARE INC MRIN 0001570714 Lien Christopher A. C/O MARIN SOFTWARE INCORPORATED 149 NEW MONTGOMERY STREET, 4TH FLOOR SAN FRANCISCO CA 94105 1 1 0 0 CEO 0 Common Stock 2023-08-31 4 S 0 10146 0.4701 D 37228 D Common Stock 2023-09-01 4 S 0 10239 0.4569 D 26989 D Common Stock 219569 I Held by Christopher A. Lien and Rebecca S. Lien, Co-Trustees the Lien Revocable Trust dated 7/8/2003 Common Stock 19285 I Held by the Christopher A. Lien 2013 Annuity Trust dated 2/4/13 Common Stock 19285 I Held by the Rebecca S. Lien 2013 Annuity Trust dated 2/4/13 Common Stock 120 I Held by Rebecca S. Lien Represents the weighted average sale price. The lowest price at which shares were sold was $0.47 and the highest price at which shares were sold was $0.4752. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth herein. Represents the weighted average sale price. The lowest price at which shares were sold was $0.455 and the highest price at which shares were sold was $0.4625. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth herein. The Reporting Person serves as a co-trustee of the trust. The Reporting Person serves as the trustee of the trust. The Reporting Person's spouse serves as the trustee of the trust. The shares are held by the Reporting Person's spouse. /s/ Christopher A. Lien by Robert Bertz, Attorney-in-Fact 2023-09-05