Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
DAG Ventures Management IV, LLC
  2. Issuer Name and Ticker or Trading Symbol
MARIN SOFTWARE INC [MRIN]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
251 LYTTON AVENUE, SUITE 200
3. Date of Earliest Transaction (Month/Day/Year)
03/27/2013
(Street)

PALO ALTO, CA 94301
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 03/27/2013   C   206,164 (1) A (1) 206,164 I Held by DAG Ventures IV, L.P. (2)
Common Stock 03/27/2013   C   69,072 (1) A (1) 275,236 I Held by DAG Ventures IV, L.P. (2)
Common Stock 03/27/2013   C   16,918 (1) A (1) 292,154 I Held by DAG Ventures IV, L.P. (2)
Common Stock 03/27/2013   C   19,433 (1) A (1) 311,587 I Held by DAG Ventures IV, L.P. (2)
Common Stock 03/27/2013   C   17,371 A (1) 328,958 I Held by DAG Ventures IV, L.P. (2)
Common Stock 03/27/2013   C   359,492 (1) A (1) 359,492 I Held by DAG Ventures IV-A, LLC (2)
Common Stock 03/27/2013   C   1,950,791 (1) A (1) 1,950,791 I Held by DAG Ventures IV-QP, L.P. (2)
Common Stock 03/27/2013   C   653,588 (1) A (1) 2,604,379 I Held by DAG Ventures IV-QP, L.P. (2)
Common Stock 03/27/2013   C   160,086 (1) A (1) 2,764,465 I Held by DAG Ventures IV-QP, L.P. (2)
Common Stock 03/27/2013   C   183,882 (1) A (1) 2,948,347 I Held by DAG Ventures IV-QP, L.P. (2)
Common Stock 03/27/2013   C   164,372 (1) A (1) 3,112,719 I Held by DAG Ventures IV-QP, L.P. (2)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Series C Preferred Stock (1) 03/27/2013   C     206,164   (1)   (3) Common Stock 206,164 $ 0 0 I Held by DAG Ventures IV, L.P. (2)
Series D Preferred Stock (1) 03/27/2013   C     69,072   (1)   (3) Common Stock 69,072 $ 0 0 I Held by DAG Ventures IV, L.P. (2)
Series E Preferred Stock (1) 03/27/2013   C     16,918   (1)   (3) Common Stock 16,918 $ 0 0 I Held by DAG Ventures IV, L.P. (2)
Series F Preferred Stock (1) 03/27/2013   C     19,433   (1)   (3) Common Stock 19,433 $ 0 0 I Held by DAG Ventures IV, L.P. (2)
Series F-1 Preferred Stock (1) 03/27/2013   C     17,371   (1)   (3) Common Stock 17,371 $ 0 0 I Held by DAG Ventures IV, L.P. (2)
Series C Preferred Stock (1) 03/27/2013   C     359,492   (1)   (3) Common Stock 359,492 $ 0 0 I Held by DAG Ventures IV-A, LLC (2)
Series C Preferred Stock (1) 03/27/2013   C     1,950,791   (1)   (3) Common Stock 1,950,791 $ 0 0 I Held by DAG Ventures IV-QP, L.P. (2)
Series D Preferred Stock (1) 03/27/2013   C     653,588   (1)   (3) Common Stock 653,588 $ 0 0 I Held by DAG Ventures IV-QP, L.P. (2)
Series E Preferred Stock (1) 03/27/2013   C     160,086   (1)   (3) Common Stock 160,086 $ 0 0 I Held by DAG Ventures IV-QP, L.P. (2)
Series F Preferred Stock (1) 03/27/2013   C     183,882   (1)   (3) Common Stock 183,882 $ 0 0 I Held by DAG Ventures IV-QP, L.P. (2)
Series F-1 Preferred Stock (1) 03/27/2013   C     164,372   (1)   (3) Common Stock 164,372 $ 0 0 I Held by DAG Ventures IV-QP, L.P. (2)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
DAG Ventures Management IV, LLC
251 LYTTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
DAG Ventures IV, L.P.
251 LYTTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
DAG Ventures IV-QP, L.P.
251 LYTTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
DAG Ventures IV-A, LLC
251 LYTTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
Cadeddu John J.
251 LYTTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
Chung Young J.
251 LYTTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
Goodrich R. Thomas
251 LYTTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
Pianim Nicholas K.
251 LYTTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    
Williams Greg
251 LYTTON AVENUE, SUITE 200
PALO ALTO, CA 94301
    X    

Signatures

 /s/ R. Thomas Goodrich as Managing Director of DAG Ventures Management IV, LLC, the General Partner of DAG Ventures IV, L.P.   03/27/2013
**Signature of Reporting Person Date

 /s/ R. Thomas Goodrich as Managing Director of DAG Ventures Management IV, LLC, the General Partner of DAG Ventures IV-QP, L.P.   03/27/2013
**Signature of Reporting Person Date

 /s/ R. Thomas Goodrich as Managing Director of DAG Ventures Management IV, LLC, the Manager of DAG Ventures IV-A, LLC   03/27/2013
**Signature of Reporting Person Date

 /s/ R. Thomas Goodrich, by power of attorney for John J. Cadeddu   03/27/2013
**Signature of Reporting Person Date

 /s/ R. Thomas Goodrich, by power of attorney for Young J. Chung   03/27/2013
**Signature of Reporting Person Date

 /s/ R. Thomas Goodrich, by power of attorney for Nicholas K. Pianim   03/27/2013
**Signature of Reporting Person Date

 /s/ R. Thomas Goodrich, by power of attorney for Greg Williams   03/27/2013
**Signature of Reporting Person Date

 /s/ R. Thomas Goodrich as Managing Director of DAG Ventures Management IV, LLC   03/27/2013
**Signature of Reporting Person Date

 /s/ R. Thomas Goodrich   03/27/2013
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) In connection with the closing of the Issuer's initial public offering of Common Stock on March 27, 2013, each share of Preferred Stock automatically converted into one (1) share of the Issuer's Common Stock for no additional consideration. All shares of Common Stock issued upon conversion were aggregated.
(2) DAG Ventures Management IV, LLC ("DAG IV LLC") serves as the General Partner of DAG Ventures IV, L.P. ("DAG IV") and DAG Ventures IV-QP, L.P. ("DAG IV-QP"), and serves as the Manager of DAG Ventures IV-A, LLC ("DAG IV-A"), and possesses power to direct the voting and disposition of the securities held by such entities. DAG IV LLC disclaims beneficial ownership over such securities except to the extent of its pecuniary interest therein. John J. Cadeddu, R. Thomas Goodrich, Young J. Chung, Nicholas K. Pianim and Greg Williams are Managing Directors of DAG IV LLC. As such, each of such individuals possesses power to direct the voting and disposition of the shares held of record by DAG IV, DAG IV-A and DAG IV-QP. Each of such individuals disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein. The inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities.
(3) None.

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