Sell4

APPFOLIO INC

APPF

Total Value

$2.9M

Net $2.9M sold

Filing Date

Aug 14, 2026

30 transactions

Sales

$2.9M

30 transactions

Trade Summary

On Aug 12, 2026 through Aug 13, 2026, DUCA MAURICE J, Insider, sold $2.9M of APPFOLIO INC (APPF) across 30 transactions. The filing covers Class A Common Stock and reflects net selling of $2.9M. Reported prices ranged from $194.54 to $206.10. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Price at the Time of the Trade

APPF daily price with the insider's sale marked at $197.28.

Sold near the 6-month high · the stock trades 3% higher today.

Price data is delayed and provided for context only — not investment advice.

Insider Information

Name: DUCA MAURICE J
Role: Insider
Location: SANTA BARBARA, CA

Filing Details

Filing Date: Aug 14, 2026
Transaction Date: Aug 12, 2026
Accession Number: 0000938333-26-000017
Form Type: 4
Net Trading Amount: -$2.9M

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Aug 12, 2026	Class A Common Stock	467	$195.41	Sale	$91.3K
Aug 12, 2026	Class A Common Stock	1,453	$196.56	Sale	$285.6K
Aug 12, 2026	Class A Common Stock	1,229	$197.33	Sale	$242.5K
Aug 12, 2026	Class A Common Stock	220	$198.24	Sale	$43.6K
Aug 12, 2026	Class A Common Stock	98	$200.19	Sale	$19.6K
Aug 12, 2026	Class A Common Stock	33	$201.04	Sale	$6.6K
Aug 12, 2026	Class A Common Stock	210	$195.42	Sale	$41.0K
Aug 12, 2026	Class A Common Stock	669	$196.56	Sale	$131.5K
Aug 12, 2026	Class A Common Stock	561	$197.33	Sale	$110.7K
Aug 12, 2026	Class A Common Stock	100	$198.24	Sale	$19.8K
Aug 12, 2026	Class A Common Stock	45	$200.20	Sale	$9.0K
Aug 12, 2026	Class A Common Stock	15	$201.04	Sale	$3.0K
Aug 12, 2026	Class A Common Stock	747	$195.41	Sale	$146.0K
Aug 12, 2026	Class A Common Stock	2,328	$196.56	Sale	$457.6K
Aug 12, 2026	Class A Common Stock	1,964	$197.33	Sale	$387.6K
Aug 12, 2026	Class A Common Stock	352	$198.24	Sale	$69.8K
Aug 12, 2026	Class A Common Stock	157	$200.20	Sale	$31.4K
Aug 12, 2026	Class A Common Stock	52	$201.04	Sale	$10.5K
Aug 13, 2026	Class A Common Stock	578	$194.54	Sale	$112.4K
Aug 13, 2026	Class A Common Stock	540	$195.62	Sale	$105.6K
Aug 13, 2026	Class A Common Stock	675	$196.28	Sale	$132.5K
Aug 13, 2026	Class A Common Stock	360	$197.29	Sale	$71.0K
Aug 13, 2026	Class A Common Stock	295	$198.36	Sale	$58.5K
Aug 13, 2026	Class A Common Stock	33	$199.81	Sale	$6.6K
Aug 13, 2026	Class A Common Stock	132	$201.82	Sale	$26.6K
Aug 13, 2026	Class A Common Stock	197	$204.07	Sale	$40.2K
Aug 13, 2026	Class A Common Stock	327	$204.88	Sale	$67.0K
Aug 13, 2026	Class A Common Stock	363	$206.10	Sale	$74.8K
Aug 13, 2026	Class A Common Stock	261	$194.54	Sale	$50.8K
Aug 13, 2026	Class A Common Stock	246	$195.62	Sale	$48.1K

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Footnotes

(F1)Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.
(F2)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $194.89 to $195.87, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F3)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $195.92 to $196.90, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F4)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $196.95 to $197.87, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F5)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $198.025 to $198.51, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F6)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $199.69 to $200.45, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F7)These shares of Class A Common Stock ("Class A Shares") are held by a pension trust of which the Reporting Person is the sole trustee and who, in that capacity, possesses sole voting and sole dispositive power over these Class A Shares. However, the Reporting Person does not possess any pecuniary interest in these Class A Shares.
(F8)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $193.95 to $194.92, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F9)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $194.95 to $195.94, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F10)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $195.95 to $196.72, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F11)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $197.02 to $197.88, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F12)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $198.05 to $198.93, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F13)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $201.25 to $202.17, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F14)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $203.50 to $204.48, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F15)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $204.61 to $205.35, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
(F16)This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $205.61 to $206.52, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

DUCA MAURICE J

(Last)

(First)

(Middle)

C/O IGSB, INC.

1485 E. VALLEY ROAD, SUITE H

(Street)

SANTA BARBARA

93108

(City)

(State)

(Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
08/12/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

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 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	08/12/2026		S⁽¹⁾		467	D	$195.41⁽²⁾	45,195	D
Class A Common Stock	08/12/2026		S⁽¹⁾		1,453	D	$196.56⁽³⁾	43,742	D
Class A Common Stock	08/12/2026		S⁽¹⁾		1,229	D	$197.33⁽⁴⁾	42,513	D
Class A Common Stock	08/12/2026		S⁽¹⁾		220	D	$198.24⁽⁵⁾	42,293	D
Class A Common Stock	08/12/2026		S⁽¹⁾		98	D	$200.19⁽⁶⁾	42,195	D
Class A Common Stock	08/12/2026		S⁽¹⁾		33	D	$201.04	42,162	D
Class A Common Stock	08/12/2026		S⁽¹⁾		210	D	$195.42⁽²⁾	19,214	I	By Family Trust
Class A Common Stock	08/12/2026		S⁽¹⁾		669	D	$196.56⁽³⁾	18,545	I	By Family Trust
Class A Common Stock	08/12/2026		S⁽¹⁾		561	D	$197.33⁽⁴⁾	17,984	I	By Family Trust
Class A Common Stock	08/12/2026		S⁽¹⁾		100	D	$198.24⁽⁵⁾	17,884	I	By Family Trust
Class A Common Stock	08/12/2026		S⁽¹⁾		45	D	$200.2⁽⁶⁾	17,839	I	By Family Trust
Class A Common Stock	08/12/2026		S⁽¹⁾		15	D	$201.04	17,824	I	By Family Trust
Class A Common Stock	08/12/2026		S⁽¹⁾		747	D	$195.41⁽²⁾	72,385	I	By Pension Trust⁽⁷⁾
Class A Common Stock	08/12/2026		S⁽¹⁾		2,328	D	$196.56⁽³⁾	70,057	I	By Pension Trust⁽⁷⁾
Class A Common Stock	08/12/2026		S⁽¹⁾		1,964	D	$197.33⁽⁴⁾	68,093	I	By Pension Trust⁽⁷⁾
Class A Common Stock	08/12/2026		S⁽¹⁾		352	D	$198.24⁽⁵⁾	67,741	I	By Pension Trust⁽⁷⁾
Class A Common Stock	08/12/2026		S⁽¹⁾		157	D	$200.2⁽⁶⁾	67,584	I	By Pension Trust⁽⁷⁾
Class A Common Stock	08/12/2026		S⁽¹⁾		52	D	$201.04	67,532	I	By Pension Trust⁽⁷⁾
Class A Common Stock	08/13/2026		S⁽¹⁾		578	D	$194.54⁽⁸⁾	41,584	D
Class A Common Stock	08/13/2026		S⁽¹⁾		540	D	$195.62⁽⁹⁾	41,044	D
Class A Common Stock	08/13/2026		S⁽¹⁾		675	D	$196.28⁽¹⁰⁾	40,369	D
Class A Common Stock	08/13/2026		S⁽¹⁾		360	D	$197.29⁽¹¹⁾	40,009	D
Class A Common Stock	08/13/2026		S⁽¹⁾		295	D	$198.36⁽¹²⁾	39,714	D
Class A Common Stock	08/13/2026		S⁽¹⁾		33	D	$199.81	39,681	D
Class A Common Stock	08/13/2026		S⁽¹⁾		132	D	$201.82⁽¹³⁾	39,549	D
Class A Common Stock	08/13/2026		S⁽¹⁾		197	D	$204.07⁽¹⁴⁾	39,352	D
Class A Common Stock	08/13/2026		S⁽¹⁾		327	D	$204.88⁽¹⁵⁾	39,025	D
Class A Common Stock	08/13/2026		S		363	D	$206.1⁽¹⁶⁾	38,662	D
Class A Common Stock	08/13/2026		S⁽¹⁾		261	D	$194.54⁽⁸⁾	17,563	I	By Family Trust
Class A Common Stock	08/13/2026		S⁽¹⁾		246	D	$195.62⁽⁹⁾	17,317	I	By Family Trust

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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

2. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $194.89 to $195.87, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

3. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $195.92 to $196.90, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

4. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $196.95 to $197.87, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

5. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $198.025 to $198.51, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

6. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $199.69 to $200.45, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

7. These shares of Class A Common Stock ("Class A Shares") are held by a pension trust of which the Reporting Person is the sole trustee and who, in that capacity, possesses sole voting and sole dispositive power over these Class A Shares. However, the Reporting Person does not possess any pecuniary interest in these Class A Shares.

8. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $193.95 to $194.92, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

9. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $194.95 to $195.94, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

10. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $195.95 to $196.72, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

11. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $197.02 to $197.88, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

12. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $198.05 to $198.93, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

13. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $201.25 to $202.17, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

14. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $203.50 to $204.48, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

15. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $204.61 to $205.35, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

16. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $205.61 to $206.52, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Remarks:

Due to a 30 line-item limitation in Table I, this is the first of two Forms 4 filed by the Reporting Person on August 14, 2026.

	/s/ Kimberly Shea, Attorney-in-Fact for Maurice J. Duca	08/14/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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 Number.

Form 4 as rendered by the SEC from accession 0000938333-26-000017.

APPFOLIO INC

Trade Summary

Price at the Time of the Trade

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4

Price at the Time of the Trade