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AppFolio Inc (APPF) ten percent owner reports 8,334-share 10b5-1 sale

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(Negative)
Form Type
4

Rhea-AI Filing Summary

Maurice J. Duca, a ten percent owner of AppFolio Inc, reported open-market sales totaling 8,334 shares of Class A Common Stock on August 5, 2026. The shares were sold in multiple trades, including 368 shares at $196.39, 506 shares at $197.11 and 2,035 shares at $193.12, pursuant to a Rule 10b5-1 trading plan adopted March 13, 2026. The transactions include shares held directly, by a family trust, and by a pension trust for which he serves as sole trustee but has no pecuniary interest, and he also reports indirect holdings through several investment LLCs and a charitable remainder trust, with beneficial ownership disclaimed in certain cases.

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Insider DUCA MAURICE J
Role 10% Owner
Sold 8,334 shs ($1.63M)
Type Security Shares Price Value
Sale Class A Common Stock F1, F2 368 $196.39 $72K
Sale Class A Common Stock F1, F3 506 $197.11 $100K
Sale Class A Common Stock F1, F4 227 $197.91 $45K
Sale Class A Common Stock F1 33 $200.49 $7K
Sale Class A Common Stock F1, F5 583 $193.12 $113K
Sale Class A Common Stock F1, F6 433 $193.98 $84K
Sale Class A Common Stock F1, F7 66 $194.85 $13K
Sale Class A Common Stock F1, F2 168 $196.40 $33K
Sale Class A Common Stock F1, F3 230 $197.11 $45K
Sale Class A Common Stock F1, F4 105 $197.91 $21K
Sale Class A Common Stock F1 15 $200.49 $3K
Sale Class A Common Stock F1, F5, F8 2,035 $193.12 $393K
Sale Class A Common Stock F1, F6, F8 1,528 $193.98 $296K
Sale Class A Common Stock F1, F7, F8 232 $194.85 $45K
Sale Class A Common Stock F1, F2, F8 587 $196.39 $115K
Sale Class A Common Stock F1, F9, F8 802 $197.11 $158K
Sale Class A Common Stock F1, F4, F8 364 $197.91 $72K
Sale Class A Common Stock F1, F8 52 $200.49 $10K
holding Class A Common Stock F10 -- -- --
holding Class A Common Stock F11 -- -- --
holding Class A Common Stock F12 -- -- --
holding Class A Common Stock F13 -- -- --
Holdings After Transaction: Class A Common Stock — 59,662 shares (Direct); Class A Common Stock — 25,824 shares (Indirect, By Family Trust); Class A Common Stock — 95,532 shares (Indirect, By Pension Trust); Class A Common Stock — 26,667 shares (Indirect, By IGSB Cardinal I, LLC); Class A Common Stock — 142,857 shares (Indirect, By IGSB Gaucho Fund I, LLC); Class A Common Stock — 9,805 shares (Indirect, By IGSB Cardinal Core BV, LLC); Class A Common Stock — 7,022 shares (Indirect, By Charitable Remainder Trust)
Footnotes (13)
  1. F1. Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.
  2. 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 $195.73 to $196.70, 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. 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 $196.73 to $197.58, 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. 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 $197.78 to $198.03, 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. 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 $192.58 to $193.57, 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. 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 $193.58 to $194.53, 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. F7. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $194.70 to $195.66, 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.
  8. F8. 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.
  9. 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 $196.73 to $197.65, 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. F10. These Class A Shares are owned by IGSB Cardinal I, LLC, a limited liability company, of which the Reporting Person is the managing member. In that capacity, the Reporting Person possesses sole voting and dispositive power over these Class A Shares. However, the Reporting Person disclaims beneficial ownership in these Class A Shares, except to the extent of any pecuniary interest he may have therein.
  11. F11. These Class A Shares are owned by IGSB Gaucho Fund I, LLC, a limited liability company, of which the Reporting Person is the managing member. In that capacity, the Reporting Person possesses sole voting and dispositive power over these Class A Shares. However, the Reporting Person disclaims beneficial ownership in these Class A Shares, except to the extent of any pecuniary interest he may have therein.
  12. F12. These Class A Shares are owned by IGSB Cardinal Core BV, LLC, a limited liability company, of which the Reporting Person is the managing member. In that capacity, the Reporting Person possesses sole voting and dispositive power over these Class A Shares, but he disclaims beneficial ownership in these Class A Shares, except to the extent of any pecuniary interest he may have therein.
  13. F13. These Class A Shares are held by a trust of which the Reporting Person is a co-trustee and, in that capacity, he may be deemed to share voting and dispositive power over these Class A Shares with the other trustee. However, the Reporting Person does not have a pecuniary interest in, and he disclaims beneficial ownership of, these Class A Shares.
Shares sold 8,334 shares Aggregate Class A Common Stock sales reported for August 5, 2026
Direct sale price example $196.39 per share 368 Class A shares sold directly on August 5, 2026
Pension trust sale example 2,035 shares at $193.12 per share Class A shares sold by a pension trust where Duca has no pecuniary interest
Indirect holding – IGSB Cardinal I, LLC 26,667 shares Indirect Class A Common Stock held as of August 4, 2026
Indirect holding – IGSB Gaucho Fund I, LLC 142,857 shares Indirect Class A Common Stock held as of August 4, 2026
Indirect holding – IGSB Cardinal Core BV, LLC 9,805 shares Indirect Class A Common Stock held as of August 4, 2026
Indirect holding – Charitable Remainder Trust 7,022 shares Indirect Class A Common Stock held as of August 4, 2026 with no pecuniary interest
Rule 10b5-1 trading plan regulatory
"Sales made pursuant to a 10b5-1 trading plan previously adopted"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"This price reflects the weighted average price at which these shares were sold"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
pecuniary interest financial
"the Reporting Person does not possess any pecuniary interest in these Class A Shares"
dispositive power financial
"possesses sole voting and sole dispositive power over these Class A Shares"
Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.
beneficial ownership financial
"the Reporting Person disclaims beneficial ownership in these Class A Shares"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What insider transactions in APPF did Maurice J. Duca report?

Maurice J. Duca, a ten percent owner, reported selling 8,334 shares of AppFolio Class A Common Stock on August 5, 2026. The shares were sold in multiple open-market trades at disclosed per-share prices such as $196.39, $197.11 and $193.12.

Were the APPF share sales by Maurice J. Duca under a Rule 10b5-1 plan?

Yes. The sales were made pursuant to a Rule 10b5-1 trading plan previously adopted by Maurice J. Duca on March 13, 2026. Such plans pre-arrange trading activity, reducing the informational value of timing for these reported transactions.

At what prices were the 8,334 APPF shares sold?

The reported trades include weighted average sale prices such as $196.39, $197.11, $197.91, $193.12 and $193.98 per share. Footnotes explain that each figure reflects multiple transactions within specified intraday price ranges.

Which entities or trusts were involved in Maurice J. Duca’s APPF share sales?

Sales involved shares held directly, by a family trust, and by a pension trust. For the pension trust, Duca is sole trustee with sole voting and dispositive power but does not possess any pecuniary interest in the shares sold.

What indirect APPF holdings does Maurice J. Duca report after these transactions?

He reports indirect holdings of 26,667 shares via IGSB Cardinal I, LLC, 142,857 shares via IGSB Gaucho Fund I, LLC, 9,805 shares via IGSB Cardinal Core BV, LLC and 7,022 shares via a charitable remainder trust, with beneficial ownership disclaimed in several cases.

Does Maurice J. Duca claim full beneficial ownership of all reported APPF positions?

No. For several indirect positions, including certain LLCs and a charitable remainder trust, he disclaims beneficial ownership, except to the extent of any pecuniary interest, and in some trusts states he has no pecuniary interest in the shares.
SEC Form 4
FORM 4UNITED 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).
X
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 CALIFORNIA 93108

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
APPFOLIO INC [ APPF ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/04/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Class A Common Stock08/05/2026S(1)368D$196.39(2)60,428D
Class A Common Stock08/05/2026S(1)506D$197.11(3)59,922D
Class A Common Stock08/05/2026S(1)227D$197.91(4)59,695D
Class A Common Stock08/05/2026S(1)33D$200.4959,662D
Class A Common Stock08/05/2026S(1)583D$193.12(5)26,841IBy Family Trust
Class A Common Stock08/05/2026S(1)433D$193.98(6)26,408IBy Family Trust
Class A Common Stock08/05/2026S(1)66D$194.85(7)26,342IBy Family Trust
Class A Common Stock08/05/2026S(1)168D$196.4(2)26,174IBy Family Trust
Class A Common Stock08/05/2026S(1)230D$197.11(3)25,944IBy Family Trust
Class A Common Stock08/05/2026S(1)105D$197.91(4)25,839IBy Family Trust
Class A Common Stock08/05/2026S(1)15D$200.4925,824IBy Family Trust
Class A Common Stock08/05/2026S(1)2,035D$193.12(5)99,097IBy Pension Trust(8)
Class A Common Stock08/05/2026S(1)1,528D$193.98(6)97,569IBy Pension Trust(8)
Class A Common Stock08/05/2026S(1)232D$194.85(7)97,337IBy Pension Trust(8)
Class A Common Stock08/05/2026S(1)587D$196.39(2)96,750IBy Pension Trust(8)
Class A Common Stock08/05/2026S(1)802D$197.11(9)95,948IBy Pension Trust(8)
Class A Common Stock08/05/2026S(1)364D$197.91(4)95,584IBy Pension Trust(8)
Class A Common Stock08/05/2026S(1)52D$200.4995,532IBy Pension Trust(8)
Class A Common Stock26,667IBy IGSB Cardinal I, LLC(10)
Class A Common Stock142,857IBy IGSB Gaucho Fund I, LLC(11)
Class A Common Stock9,805IBy IGSB Cardinal Core BV, LLC(12)
Class A Common Stock7,022IBy Charitable Remainder Trust(13)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
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 $195.73 to $196.70, 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 $196.73 to $197.58, 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 $197.78 to $198.03, 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 $192.58 to $193.57, 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 $193.58 to $194.53, 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. This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $194.70 to $195.66, 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.
8. 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.
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 $196.73 to $197.65, 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. These Class A Shares are owned by IGSB Cardinal I, LLC, a limited liability company, of which the Reporting Person is the managing member. In that capacity, the Reporting Person possesses sole voting and dispositive power over these Class A Shares. However, the Reporting Person disclaims beneficial ownership in these Class A Shares, except to the extent of any pecuniary interest he may have therein.
11. These Class A Shares are owned by IGSB Gaucho Fund I, LLC, a limited liability company, of which the Reporting Person is the managing member. In that capacity, the Reporting Person possesses sole voting and dispositive power over these Class A Shares. However, the Reporting Person disclaims beneficial ownership in these Class A Shares, except to the extent of any pecuniary interest he may have therein.
12. These Class A Shares are owned by IGSB Cardinal Core BV, LLC, a limited liability company, of which the Reporting Person is the managing member. In that capacity, the Reporting Person possesses sole voting and dispositive power over these Class A Shares, but he disclaims beneficial ownership in these Class A Shares, except to the extent of any pecuniary interest he may have therein.
13. These Class A Shares are held by a trust of which the Reporting Person is a co-trustee and, in that capacity, he may be deemed to share voting and dispositive power over these Class A Shares with the other trustee. However, the Reporting Person does not have a pecuniary interest in, and he disclaims beneficial ownership of, these Class A Shares.
Remarks:
Due to a 30 line-item limitation in Table I, this is the second of two Forms 4 filed by the Reporting Person.
/s/ Kimberly Shea, Attorney-in-Fact for Maurice J. Duca08/06/2026
** Signature of Reporting PersonDate
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: SEC 1474 (03-26)