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AppFolio (APPF) holder Maurice Duca logs 6,693-share sale under 10b5-1 plan

(Very High)
(Negative)
Form Type
4

Rhea-AI Filing Summary

APPFOLIO INC major stockholder Maurice J. Duca, through family and pension trusts, reported sales of 6,693 shares of Class A Common Stock on August 13, 2026, at prices generally between about $194.54 and $206.10 per share. The sales were made pursuant to a Rule 10b5-1 trading plan adopted on March 13, 2026. Some shares were sold by a pension trust for which Duca has voting and dispositive power but no pecuniary interest, and the filing also reports indirect holdings in several LLCs and a charitable remainder trust.

Positive

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Negative

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Insights

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Insider DUCA MAURICE J
Role 10% Owner
Sold 6,693 shs ($1.33M)
Type Security Shares Price Value
Sale Class A Common Stock F1, F2 315 $196.28 $62K
Sale Class A Common Stock F1, F3 164 $197.29 $32K
Sale Class A Common Stock F1, F4 134 $198.37 $27K
Sale Class A Common Stock F1 15 $199.81 $3K
Sale Class A Common Stock F1, F5 60 $201.82 $12K
Sale Class A Common Stock F1, F6 90 $204.08 $18K
Sale Class A Common Stock F1, F7 150 $204.88 $31K
Sale Class A Common Stock F1, F8 165 $206.10 $34K
Sale Class A Common Stock F1, F9, F10 919 $194.54 $179K
Sale Class A Common Stock F1, F11, F10 866 $195.62 $169K
Sale Class A Common Stock F1, F2, F10 1,100 $196.28 $216K
Sale Class A Common Stock F1, F3, F10 576 $197.29 $114K
Sale Class A Common Stock F1, F4, F10 469 $198.36 $93K
Sale Class A Common Stock F1, F12, F10 53 $199.80 $11K
Sale Class A Common Stock F1, F5, F10 208 $201.82 $42K
Sale Class A Common Stock F1, F6, F10 314 $204.08 $64K
Sale Class A Common Stock F1, F7, F10 523 $204.88 $107K
Sale Class A Common Stock F1, F8, F10 572 $206.10 $118K
holding Class A Common Stock F13 -- -- --
holding Class A Common Stock F14 -- -- --
holding Class A Common Stock F15 -- -- --
holding Class A Common Stock F16 -- -- --
Holdings After Transaction: Class A Common Stock — 16,224 shares (Indirect, By Family Trust); Class A Common Stock — 61,932 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 (16)
  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 $195.95 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.
  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 $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.
  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 $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.
  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 $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.
  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 $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.
  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 $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.
  8. 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 $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.
  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 $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.
  10. F10. 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.
  11. 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 $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.
  12. 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 $199.20 to $199.81, 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. F13. 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.
  14. F14. 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.
  15. F15. 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.
  16. F16. 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 6,693 shares Total Class A Common Stock sold on August 13, 2026 by related trusts
Lowest reported sale price $194.54 per share Weighted-average sale price in one transaction block on August 13, 2026
Highest reported sale price $206.10 per share Per-share sale price in one transaction block on August 13, 2026
IGSB Cardinal I, LLC holdings 26,667 shares Indirect Class A holdings reported as of August 12, 2026, with beneficial ownership disclaimed except for pecuniary interest
IGSB Gaucho Fund I, LLC holdings 142,857 shares Indirect Class A holdings reported as of August 12, 2026, with beneficial ownership disclaimed except for pecuniary interest
Charitable remainder trust holdings 7,022 shares Indirect Class A holdings where Duca has 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"
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
"However, the Reporting Person does not possess any pecuniary interest in"
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.

FAQ

What did APPF (AppFolio Inc) insider Maurice J. Duca report in this Form 4?

Maurice J. Duca reported selling 6,693 shares of AppFolio Class A Common Stock on August 13, 2026 through family and pension trusts, under a pre-established Rule 10b5-1 trading plan.

How many APPF shares were sold and at what prices in this Form 4?

Entities associated with Maurice J. Duca sold 6,693 shares of APPF Class A stock at weighted-average prices generally between about $194.54 and $206.10 per share, across multiple open-market transactions on August 13, 2026.

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

Yes. The filing states the sales were made pursuant to a Rule 10b5-1 trading plan previously adopted by Maurice J. Duca on March 13, 2026, indicating the trades followed a pre-arranged schedule.

Which entities executed the APPF share sales reported for Maurice J. Duca?

The sales involved APPF Class A shares held by a family trust and by a pension trust. For the pension trust, Duca has sole voting and dispositive power but no pecuniary interest in the shares, according to the footnotes.

What indirect APPF share holdings linked to Maurice J. Duca are disclosed?

The Form 4 discloses indirect holdings of APPF Class A shares by IGSB Cardinal I, LLC (26,667 shares), IGSB Gaucho Fund I, LLC (142,857 shares), IGSB Cardinal Core BV, LLC (9,805 shares), and a charitable remainder trust (7,022 shares), with beneficial ownership disclaimed except for any pecuniary interest.

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

No. For certain LLC and trust holdings, Duca has voting and dispositive power but disclaims beneficial ownership except to the extent of any pecuniary interest. For the pension and charitable remainder trusts, he states he has no pecuniary interest in the shares.

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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)
08/12/2026
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 Stock08/13/2026S(1)315D$196.28(2)17,002IBy Family Trust
Class A Common Stock08/13/2026S(1)164D$197.29(3)16,838IBy Family Trust
Class A Common Stock08/13/2026S(1)134D$198.37(4)16,704IBy Family Trust
Class A Common Stock08/13/2026S(1)15D$199.8116,689IBy Family Trust
Class A Common Stock08/13/2026S(1)60D$201.82(5)16,629IBy Family Trust
Class A Common Stock08/13/2026S(1)90D$204.08(6)16,539IBy Family Trust
Class A Common Stock08/13/2026S(1)150D$204.88(7)16,389IBy Family Trust
Class A Common Stock08/13/2026S(1)165D$206.1(8)16,224IBy Family Trust
Class A Common Stock08/13/2026S(1)919D$194.54(9)66,613IBy Pension Trust(10)
Class A Common Stock08/13/2026S(1)866D$195.62(11)65,747IBy Pension Trust(10)
Class A Common Stock08/13/2026S(1)1,100D$196.28(2)64,647IBy Pension Trust(10)
Class A Common Stock08/13/2026S(1)576D$197.29(3)64,071IBy Pension Trust(10)
Class A Common Stock08/13/2026S(1)469D$198.36(4)63,602IBy Pension Trust(10)
Class A Common Stock08/13/2026S(1)53D$199.8(12)63,549IBy Pension Trust(10)
Class A Common Stock08/13/2026S(1)208D$201.82(5)63,341IBy Pension Trust(10)
Class A Common Stock08/13/2026S(1)314D$204.08(6)63,027IBy Pension Trust(10)
Class A Common Stock08/13/2026S(1)523D$204.88(7)62,504IBy Pension Trust(10)
Class A Common Stock08/13/2026S(1)572D$206.1(8)61,932IBy Pension Trust(10)
Class A Common Stock26,667IBy IGSB Cardinal I, LLC(13)
Class A Common Stock142,857IBy IGSB Gaucho Fund I, LLC(14)
Class A Common Stock9,805IBy IGSB Cardinal Core BV, LLC(15)
Class A Common Stock7,022IBy Charitable Remainder Trust(16)
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 $195.95 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.
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 $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.
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 $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.
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 $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.
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 $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.
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 $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.
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 $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.
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 $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.
10. 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.
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 $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.
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 $199.20 to $199.81, 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. 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.
14. 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.
15. 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.
16. 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 on August 14, 2026.
/s/ Kimberly Shea, Attorney-in-Fact for Maurice J. Duca08/14/2026
** 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)