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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
DUCA MAURICE J
  2. Issuer Name and Ticker or Trading Symbol
APPFOLIO INC [APPF]
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)
C/O IGSB, INC., 1485 E VALLEY ROAD, SUITE H
3. Date of Earliest Transaction (Month/Day/Year)
06/25/2015
(Street)

SANTA BARBARA, CA 93108
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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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 B Convertible Preferred Stock (1) 06/25/2015   C     5,644,288   (1)   (1) Class B Common Stock (2) (3) 1,411,072 $ 0 0 I By IGSB IVP II, LLC
Class B Common Stock (2) (3) 06/25/2015   C   1,411,072 (4)     (2)(3)   (2)(3) Class A Common Stock 1,411,072 $ 0 1,411,072 I (4) By IGSB IVP II, LLC
Series B-1 Convertible Preferred Stock (1) 06/25/2015   C     1,159,032   (1)   (1) Class B Common Stock (2) (3) 289,758 $ 0 0 I By IGSB IVP II, LLC
Class B Common Stock (2) (3) 06/25/2015   C   289,758 (4)     (2)(3)   (2)(3) Class A Common Stock 289,758 $ 0 1,700,830 I (4) By IGSB IVP II, LLC
Series B Convertible Preferred Stock (1) 06/25/2015   C     3,228   (1)   (1) Class B Common Stock (2) (3) 807 $ 0 0 I By IGSB Internal Venture Fund II, LLC
Class B Common Stock (2) (3) 06/25/2015   C   807 (5)     (2)(3)   (2)(3) Class A Common Stock 807 $ 0 1,701,637 I (5) By IGSB Internal Venture Fund II, LLC
Series B-1 Convertible Preferred Stock (1) 06/25/2015   C     168,464   (1)   (1) Class B Common Stock (2) (3) 42,116 $ 0 0 I By IGSB Internal Venture Fund II, LLC
Class B Common Stock (2) (3) 06/25/2015   C   42,116 (5)     (2)(3)   (2)(3) Class A Common Stock 42,116 $ 0 1,743,753 I (5) By IGSB Internal Venture Fund II, LLC
Series A Convertible Preferred Stock (1) 06/25/2015   C     32,260   (1)   (1) Class B Common Stock (2) (3) 8,065 $ 0 0 I By IGSB IVP III, LLC
Class B Common Stock (2) (3) 06/25/2015   C   8,065 (6)     (2)(3)   (2)(3) Class A Common Stock 8,065 $ 0 1,751,818 I (6) By IGSB IVP III, LLC
Series B Convertible Preferred Stock (1) 06/25/2015   C     6,049   (1)   (1) Class B Common Stock (2) (3) 1,512 $ 0 0 I By IGSB IVP III, LLC
Class B Common Stock (2) (3) 06/25/2015   C   1,512 (6)     (2)(3)   (2)(3) Class A Common Stock 1,512 $ 0 1,753,330 I (6) By IGSB IVP III, LLC
Series B-2 Convertible Preferred Stock (1) 06/25/2015   C     2,993,564   (1)   (1) Class B Common Stock (2) (3) 748,391 $ 0 0 I By IGSB IVP III, LLC
Class B Common Stock (2) (3) 06/25/2015   C   748,391 (6)     (2)(3)   (2)(3) Class A Common Stock 748,391 $ 0 2,501,721 I (6) By IGSB IVP III, LLC
Series B-3 Convertible Preferred Stock (1) 06/25/2015   C     1,202,763   (1)   (1) Class B Common Stock (2) (3) 300,691 $ 0 0 I By IGSB IVP III, LLC
Class B Common Stock (2) (3) 06/25/2015   C   300,691 (6)     (2)(3)   (2)(3) Class A Common Stock 300,691 $ 0 2,802,412 I (6) By IGSB IVP III, LLC
Series B Convertible Preferred Stock (1) 06/25/2015   C     20,162   (1)   (1) Class B Common Stock (2) (3) 5,041 $ 0 0 I By IGSB Internal Venture Fund III, LLC
Class B Common Stock (2) (3) 06/25/2015   C   5,041 (7)     (2)(3)   (2)(3) Class A Common Stock 5,041 $ 0 2,807,453 I (7) By IGSB Internal Venture Fund III, LLC
Series B-2 Convertible Preferred Stock (1) 06/25/2015   C     1,781,883   (1)   (1) Class B Common Stock (2) (3) 445,471 $ 0 0 I By IGSB Internal Venture Fund III, LLC
Class B Common Stock (2) (3) 06/25/2015   C   445,471 (7)     (2)(3)   (2)(3) Class A Common Stock 445,471 $ 0 3,252,924 I (7) By IGSB Internal Venture Fund III, LLC
Series B-3 Convertible Preferred Stock (1) 06/25/2015   C     1,202,763   (1)   (1) Class B Common Stock (2) (3) 300,691 $ 0 0 I By IGSB Internal Venture Fund III, LLC
Class B Common Stock (2) (3) 06/25/2015   C   300,691 (7)     (2)(3)   (2)(3) Class A Common Stock 300,691 $ 0 3,553,615 I (7) By IGSB Internal Venture Fund III, LLC
Series A Convertible Preferred Stock (1) 06/25/2015   C     104,316   (1)   (1) Class B Common Stock (2) (3) 26,079 $ 0 0 I By BV Capital Fund II LP
Class B Common Stock (2) (3) 06/25/2015   C   26,079 (8)     (2)(3)   (2)(3) Class A Common Stock 26,079 $ 0 3,579,694 I (8) By BV Capital Fund II LP
Series B Convertible Preferred Stock (1) 06/25/2015   C     35,764   (1)   (1) Class B Common Stock (2) (3) 8,941 $ 0 0 I By BV Capital Fund II LP
Class B Common Stock (2) (3) 06/25/2015   C   8,941 (8)     (2)(3)   (2)(3) Class A Common Stock 8,941 $ 0 3,588,635 I (8) By BV Capital Fund II LP
Series A Convertible Preferred Stock (1) 06/25/2015   C     536   (1)   (1) Class B Common Stock (2) (3) 134 $ 0 0 I By Mayfield XI LP
Class B Common Stock (2) (3) 06/25/2015   C   134 (9)     (2)(3)   (2)(3) Class A Common Stock 134 $ 0 3,588,769 I (9) By Mayfield XI LP
Series B Convertible Preferred Stock (1) 06/25/2015   C     180   (1)   (1) Class B Common Stock (2) (3) 45 $ 0 0 I By Mayfield XI LP
Class B Common Stock (2) (3) 06/25/2015   C   45 (9)     (2)(3)   (2)(3) Class A Common Stock 45 $ 0 3,588,814 I (9) By Mayfield XI LP

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
DUCA MAURICE J
C/O IGSB, INC.
1485 E VALLEY ROAD, SUITE H
SANTA BARBARA, CA 93108
    X    
Investment Group of Santa Barbara, LLC
C/O IGSB, INC.
1485 E VALLEY ROAD, SUITE H
SANTA BARBARA, CA 93108
    X    

Signatures

 Investment Group of Santa Barbara, LLC, By: /s/ Kimberly Shea, attorney-in-fact for Timothy K. Bliss, Member and Vice President   06/29/2015
**Signature of Reporting Person Date

 /s/ Kimberly Shea, attorney-in-fact for Maurice J. Duca   06/29/2015
**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) Each share of Convertible Preferred Stock, irrespective of its Series, automatically converted into 0.25 of a share of Class B Common Stock prior to the consummation of the initial public offering (the "IPO") of AppFolio, Inc. (the "Company"). The Class B Common Stock has not been registered, and it is not expected that the Class B Common Stock will be registered in the future, under the Securities Exchange Act of 1934, as amended.
(2) Each share of Class B Common Stock is convertible, at any time at the option of the holder, into one share of Class A Common Stock. In addition, shares of Class B Common Stock that are transferred after the consummation of the Company's IPO will convert automatically, on a one share-for-one share basis, into shares of Class A Common Stock, except for (i) any transfers, by a partnership or limited liability company that was a registered holder of shares of Class B Common Stock prior to the consummation of the IPO, made to anyone who was a partner or member of any such partnership or limited liability company prior to the consummation of the IPO, and (ii) any transfer to a "qualified recipient" as defined in the Company's amended and restated certificate of incorporation.
(3) All outstanding shares of Class B Common Stock will convert automatically into shares of Class A Common Stock, on a one share-for-one share basis, on the date when the number of the Company's outstanding shares of Class B Common Stock represents less than 10% of the sum of its outstanding shares of Class A Common Stock and Class B Common Stock.
(4) These Shares are owned of record by IGSB IVP II, LLC, which is a private investment fund. Because Mr. Duca does not possess or share voting or dispositive power over these Shares, he disclaims beneficial ownership of these Shares except to the extent of his pecuniary interest in these Shares.
(5) These Shares are held of record by IGSB Internal Venture Fund II, LLC, which is a private investment fund. Because Mr. Duca does not possess or share voting or investment power over these Shares, he disclaims beneficial ownership of these Shares except to the extent of his pecuniary interest in these Shares.
(6) These Shares are held of record by IGSB IVP III, LLC ("IGSB IVP 3"), which is a private investment fund managed by Investment Group of Santa Barbara, LLC ("IGSB"). Mr. Duca is one of three members of IGSB and all decisions regarding the voting and disposition of these Shares requires the unanimous approval of the three members. As a result, Mr. Duca may be deemed to share voting and dispositive power over these Shares with IGSB and its other two members. However, Mr. Duca disclaims beneficial ownership of these Shares except to the extent of his pecuniary interest in these Shares.
(7) These Shares are held of record by IGSB Internal Venture Fund III, LLC ("IGSB Venture Fund 3"), which is a private investment fund also managed by IGSB. Mr. Duca is one of three members of IGSB and all decisions regarding the voting and disposition of these Shares requires the unanimous approval of the three members. As a result, Mr. Duca may be deemed to share voting and dispositive power over these Shares with IGSB and its other two members. However, Mr. Duca disclaims beneficial ownership of these Shares except to the extent of his pecuniary interest therein.
(8) Mr. Duca does not possess or share voting or dispositive power over any of these Shares and disclaims beneficial ownership of these Shares, except to the extent of his pecuniary interest therein.
(9) Mr. Duca does not possess or share voting or dispositive power over any of these Shares and disclaims beneficial ownership of all of these Shares, except to the extent of his pecuniary interest therein.
 
Remarks:
Form 1 of 2

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.