Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * Bertz Robert	2. Date of Event Requiring Statement (MM/DD/YYYY) 12/5/2019	3. Issuer Name and Ticker or Trading Symbol MARIN SOFTWARE INC [MRIN]
(Last)        (First)        (Middle) C/O MARIN SOFTWARE INCORPORATED, 123 MISSION STREET, 27TH FLOOR	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                          _____ 10% Owner ___X___ Officer (give title below)        _____ Other (specify below) CFO /
(Street) SAN FRANCISCO, CA 94105       (City)              (State)              (Zip)	5. If Amendment, Date Original Filed(MM/DD/YYYY)	6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
No securities beneficially held	0	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units (RSU)	(1)	5/7/2029	Common Stock	20000	(2)	D

Explanation of Responses:
(1)	25% of the RSUs vest annually on the each of May 7, 2020, May 7, 2021, May 7, 2022 and May 7, 2023, 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.
(2)	Each RSU represents a contingent right to receive one (1) share of the issuer's Common Stock upon settlement.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Bertz Robert C/O MARIN SOFTWARE INCORPORATED 123 MISSION STREET, 27TH FLOOR SAN FRANCISCO, CA 94105			CFO

Signatures
/s/ Chris Lien as attorney-in-fact for Robert Bertz		12/9/2019
**Signature of Reporting Person		Date