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person · Reporting owner

DUCA MAURICE J

Disclosed activity across 1 company

Tapewire entity
20551
SEC CIK
0000938333

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
APPFOLIO INCAPPF · Entity 363810% ownerAugust 20, 2026August 24, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

APPFOLIO INC

Report date August 20, 2026 · Filed August 24, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust9,646 Reported balance After 2026-08-20 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2026-08-20 · Sale · Disposed 178 · Balance 9,646

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 $214.75 to $215.61, 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust9,448 Reported balance After 2026-08-20 transaction · row 2 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 2 · 2026-08-20 · Sale · Disposed 198 · Balance 9,448

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $216.01 to $216.94, 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,996 Reported balance After 2026-08-20 transaction · row 3 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 3 · 2026-08-20 · Sale · Disposed 452 · Balance 8,996

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $217.03 to $218.02, 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,445 Reported balance After 2026-08-20 transaction · row 4 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 4 · 2026-08-20 · Sale · Disposed 551 · Balance 8,445

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $218.03 to $218.99, 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,246 Reported balance After 2026-08-20 transaction · row 5 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 5 · 2026-08-20 · Sale · Disposed 199 · Balance 8,246

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $219.03 to $220.02, 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,224 Reported balance After 2026-08-20 transaction · row 6 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 6 · 2026-08-20 · Sale · Disposed 22 · Balance 8,224

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,216 Reported balance After 2026-08-21 transaction · row 13 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 13 · 2026-08-21 · Sale · Disposed 8 · Balance 8,216

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $214.36 to $214.95, 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,199 Reported balance After 2026-08-21 transaction · row 14 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 14 · 2026-08-21 · Sale · Disposed 17 · Balance 8,199

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,191 Reported balance After 2026-08-21 transaction · row 15 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 15 · 2026-08-21 · Sale · Disposed 8 · Balance 8,191

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,156 Reported balance After 2026-08-21 transaction · row 16 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 16 · 2026-08-21 · Sale · Disposed 35 · Balance 8,156

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $220.96 to $221.895, 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,062 Reported balance After 2026-08-21 transaction · row 17 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 17 · 2026-08-21 · Sale · Disposed 94 · Balance 8,062

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $222.09 to $223.08, 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Family Trust8,000 Reported balance After 2026-08-21 transaction · row 18 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 18 · 2026-08-21 · Sale · Disposed 62 · Balance 8,000

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $223.59 to $224.40, 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Pension Trust31,500 Last balance in matching sequence After 2026-08-21 transaction · row 24 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
12 source rows

Row 7 · 2026-08-20 · Sale · Disposed 622 · Balance 38,910

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 $214.75 to $215.61, 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.

Row 8 · 2026-08-20 · Sale · Disposed 702 · Balance 38,208

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $216.01 to $216.94, 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.

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.

Row 9 · 2026-08-20 · Sale · Disposed 1,550 · Balance 36,658

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $217.03 to $218.02, 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.

Row 10 · 2026-08-20 · Sale · Disposed 1,947 · Balance 34,711

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $218.03 to $218.99, 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.

Row 11 · 2026-08-20 · Sale · Disposed 701 · Balance 34,010

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $219.03 to $220.02, 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.

Row 12 · 2026-08-20 · Sale · Disposed 78 · Balance 33,932

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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.

Row 19 · 2026-08-21 · Sale · Disposed 92 · Balance 33,840

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $214.36 to $214.95, 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.

Row 20 · 2026-08-21 · Sale · Disposed 183 · Balance 33,657

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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.

Row 21 · 2026-08-21 · Sale · Disposed 92 · Balance 33,565

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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.

Row 22 · 2026-08-21 · Sale · Disposed 365 · Balance 33,200

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $220.96 to $221.895, 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.

Row 23 · 2026-08-21 · Sale · Disposed 1,006 · Balance 32,194

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $222.09 to $223.08, 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.

Row 24 · 2026-08-21 · Sale · Disposed 694 · Balance 31,500

F1: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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 $223.59 to $224.40, 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.

Class A Common StockSEC Table I · non-derivativeDirect31,005 Reported balance Holding disclosure · report date 2026-08-20 · row 25 Holding and transaction disclosures are not merged.
1 source row

Row 25 · Balance 31,005

Class A Common StockSEC Table I · non-derivativeIndirectBy IGSB Cardinal I, LLC26,667 Reported balance Holding disclosure · report date 2026-08-20 · row 26 Holding and transaction disclosures are not merged.
1 source row

Row 26 · Balance 26,667

F12: 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy IGSB Gaucho Fund I, LLC142,857 Reported balance Holding disclosure · report date 2026-08-20 · row 27 Holding and transaction disclosures are not merged.
1 source row

Row 27 · Balance 142,857

F13: 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy IGSB Cardinal Core BV, LLC9,805 Reported balance Holding disclosure · report date 2026-08-20 · row 28 Holding and transaction disclosures are not merged.
1 source row

Row 28 · Balance 9,805

F14: 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.

Class A Common StockSEC Table I · non-derivativeIndirectBy Charitable Remainder Trust7,022 Reported balance Holding disclosure · report date 2026-08-20 · row 29 Holding and transaction disclosures are not merged.
1 source row

Row 29 · Balance 7,022

F15: 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.

Filing footnotes · ownership attribution and instrument terms

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 $214.75 to $215.61, 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 $216.01 to $216.94, 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.

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 $217.03 to $218.02, 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 $218.03 to $218.99, 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 $219.03 to $220.02, 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 $214.36 to $214.95, 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 $220.96 to $221.895, 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 $222.09 to $223.08, 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 $223.59 to $224.40, 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: 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.

F13: 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.

F14: 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.

F15: 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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 694 $224.13 $155,546.22
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 24

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 31,500

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F11 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $223.59 to $224.40, 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 · ownership.nature: 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.

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 1,006 $222.43 $223,764.58
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 23

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 32,194

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F10 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $222.09 to $223.08, 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 · ownership.nature: 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.

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 365 $221.37 $80,800.05
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 22

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 33,200

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F9 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $220.96 to $221.895, 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 · ownership.nature: 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.

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 92 $218.14 $20,068.88
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 21

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 33,565

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F7 · ownership.nature: 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.

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August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 183 $216.38 $39,597.54
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 20

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 33,657

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F7 · ownership.nature: 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.

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 92 $214.73 $19,755.16
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 19

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 33,840

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F8 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $214.36 to $214.95, 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 · ownership.nature: 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.

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August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 62 $224.14 $13,896.68
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 18

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,000

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F11 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $223.59 to $224.40, 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.

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 94 $222.42 $20,907.48
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 17

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,062

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F10 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $222.09 to $223.08, 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.

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 35 $221.41 $7,749.35
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 16

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,156

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F9 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $220.96 to $221.895, 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.

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 8 $218.14 $1,745.12
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 15

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,191

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 17 $216.38 $3,678.46
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 14

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,199

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

Read SEC document
August 21, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 8 $214.71 $1,717.68
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 13

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,216

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F8 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $214.36 to $214.95, 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 78 $220.06 $17,164.68
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 12

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 33,932

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F7 · ownership.nature: 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 701 $219.35 $153,764.35
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 11

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 34,010

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F6 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $219.03 to $220.02, 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 · ownership.nature: 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 1,947 $218.45 $425,322.15
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 10

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 34,711

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F5 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $218.03 to $218.99, 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 · ownership.nature: 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 1,550 $217.67 $337,388.50
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 9

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 36,658

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F4 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $217.03 to $218.02, 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 · ownership.nature: 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 702 $216.43 $151,933.86
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 8

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 38,208

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F3 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $216.01 to $216.94, 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.

F7 · ownership.nature: 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 622 $215.37 $133,960.14
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 7

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 38,910

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F2 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $214.75 to $215.61, 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 · ownership.nature: 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 22 $220.06 $4,841.32
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 6

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,224

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 199 $219.35 $43,650.65
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 5

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,246

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F6 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $219.03 to $220.02, 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 551 $218.46 $120,371.46
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 4

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,445

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F5 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $218.03 to $218.99, 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 452 $217.68 $98,391.36
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 3

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 8,996

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F4 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $217.03 to $218.02, 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 198 $216.44 $42,855.12
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 2

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 9,448

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F3 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $216.01 to $216.94, 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.

Read SEC document
August 20, 2026 Filed Aug 24, 2026 21:58 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 178 $215.37 $38,335.86
Disclosure

SEC source: 0000938333-26-000023 · form4-08242026_090815.xml · nonDerivative · entry 1

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 9,646

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F2 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $214.75 to $215.61, 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.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 312 $215.60 $67,267.20
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 14

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 39,532

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F5 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $215.50 to $215.77, 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 · ownership.nature: 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.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 1,801 $214.94 $387,106.94
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 13

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 39,844

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F10 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $214.39 to $215.37, 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 · ownership.nature: 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.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 2,005 $213.78 $428,628.90
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 12

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 41,645

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F3 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $213.31 to $214.30, 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 · ownership.nature: 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.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 781 $212.64 $166,071.84
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 11

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 43,650

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F2 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $212.22 to $213.16, 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 · ownership.nature: 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.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 234 $211.18 $49,416.12
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 10

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 44,431

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F9 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $210.94 to $211.67, 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 · ownership.nature: 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.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 156 $209.12 $32,622.72
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 9

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 44,665

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F8 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $209.01 to $209.22, 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 · ownership.nature: 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.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 23 $207.27 $4,767.21
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 8

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 44,821

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F6 · ownership.nature: 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.

Read SEC document
August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 132 $206.45 $27,251.40
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 7

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 44,844

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F7 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $206.05 to $207.03, 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.

F6 · ownership.nature: 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.

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August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 78 $203.98 $15,910.44
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 6

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 44,976

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F6 · ownership.nature: 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.

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August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 78 $202.61 $15,803.58
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 5

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 45,054

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F6 · ownership.nature: 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.

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August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 88 $215.60 $18,972.80
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 4

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 9,824

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F5 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $215.50 to $215.77, 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.

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August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 510 $214.94 $109,619.40
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 3

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 9,912

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F4 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $214.39 to $215.33, 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.

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August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 584 $213.78 $124,847.52
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 2

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 10,422

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F3 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $213.31 to $214.30, 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.

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August 19, 2026 Filed Aug 20, 2026 22:35 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 219 $212.64 $46,568.16
Disclosure

SEC source: 0000938333-26-000022 · form4-08202026_100813.xml · nonDerivative · entry 1

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 11,006

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F2 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $212.22 to $213.16, 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.

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August 19, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 66 $211.18 $13,937.88
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 30

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 11,225

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F14 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $210.94 to $211.67, 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.

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August 19, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 44 $209.12 $9,201.28
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 29

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 11,291

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F13 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $209.01 to $209.22, 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.

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August 19, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 7 $207.27 $1,450.89
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 28

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 11,335

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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August 19, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 38 $206.46 $7,845.48
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 27

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 11,342

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F12 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $206.05 to $207.03, 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.

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August 19, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 22 $203.98 $4,487.56
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 26

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 11,380

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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August 19, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 22 $202.61 $4,457.42
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 25

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 11,402

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

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August 18, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 434 $205.95 $89,382.30
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 24

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 45,132

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F9 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $205.495 to $206.14, 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 · ownership.nature: 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.

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August 18, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 1,000 $204.98 $204,980.00
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 23

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 45,566

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F8 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $204.49 to $205.46, 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 · ownership.nature: 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.

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August 18, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 2,588 $203.88 $527,641.44
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 22

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 46,566

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F7 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $203.355 to $204.29, 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 · ownership.nature: 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.

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August 18, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 359 $202.77 $72,794.43
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 21

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 49,154

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F6 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $202.23 to $203.00, 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 · ownership.nature: 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.

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August 18, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 576 $201.49 $116,058.24
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 20

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 49,513

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F5 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $201.03 to $201.95, 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 · ownership.nature: 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.

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August 18, 2026 Filed Aug 20, 2026 22:33 UTC APPFOLIO INC APPF · Entity 3638 SaleClass A Common Stock 356 $200.29 $71,303.24
Disclosure

SEC source: 0000938333-26-000021 · form4-08202026_100851.xml · nonDerivative · entry 19

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 50,089

F1 · kind: Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.

F4 · price: This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $199.98 to $200.68, 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 · ownership.nature: 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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.