APPF

SEC source: 0001415889-24-027668 · form4-11262024_121100.xml · nonDerivative · entry 6

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,152

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $239.86 to $240.25, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-027668 · form4-11262024_121100.xml · nonDerivative · entry 5

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,752

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $238.86 to $239.80, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-027668 · form4-11262024_121100.xml · nonDerivative · entry 4

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,053

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

SEC source: 0001415889-24-027668 · form4-11262024_121100.xml · nonDerivative · entry 3

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,153

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $236.44 to $236.96, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-027668 · form4-11262024_121100.xml · nonDerivative · entry 2

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,753

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $235.35 to $235.79, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-027668 · form4-11262024_121100.xml · nonDerivative · entry 1

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,288

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · derivative · entry 15

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By IGSB Cardinal I, LLC

Disclosed balance after: 26,666

Underlying: Class A Common Stock · 26,666 shares

Expires not disclosed

F16 · kind: These 26,666 Class B Shares were acquired by IGSB Cardinal I in connection with the transfer of these Class B Shares from the Reporting Person and the Reporting Person's Family Trust. No consideration was received by the Reporting Person or his Family Trust for any of the Class B Shares.

F13 · derivative.exercise_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F14 · derivative.exercise_date: (Continued from Footnote 13) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

F13 · derivative.expiration_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F14 · derivative.expiration_date: (Continued from Footnote 13) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

F17 · ownership.nature: The Reporting Person is the managing member of IGSB Cardinal I. In that capacity, the Reporting Person possesses sole voting and dispositive power over these Class B Shares. However, the Reporting Person disclaims beneficial ownership in these Class B Shares, except to the extent of any pecuniary interest he may have therein.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · derivative · entry 14

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 144,442

Underlying: Class A Common Stock · 4,638 shares

Expires not disclosed

F15 · kind: These 4,638 Class B Shares were acquired by IGSB Cardinal I in connection with the transfer of the Class B Shares from the Reporting Person's Family Trust. No consideration was received by the Reporting Person or his Family Trust for any of the Class B Shares.

F13 · derivative.exercise_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F14 · derivative.exercise_date: (Continued from Footnote 13) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

F13 · derivative.expiration_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F14 · derivative.expiration_date: (Continued from Footnote 13) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · derivative · entry 13

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,597,416

Underlying: Class A Common Stock · 22,028 shares

Expires not disclosed

F12 · kind: These 22,028 shares of Class B Common Stock ("Class B Shares") were acquired by IGSB Cardinal I in connection with the transfer of the Class B Shares from an IRA account held by the Reporting Person. No consideration was received by the Reporting Person or his IRA for any of the Class B Shares.

F13 · derivative.exercise_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F14 · derivative.exercise_date: (Continued from Footnote 13) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

F13 · derivative.expiration_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F14 · derivative.expiration_date: (Continued from Footnote 13) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · nonDerivative · entry 9

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By IGSB Cardinal I, LLC

Disclosed balance after: 26,667

F8 · kind: These 26,667 Class A Shares were acquired by IGSB Cardinal I, LLC ("IGSB Cardinal I") in connection with the transfer of these Class A Shares from another member of IGSB Cardinal I. No consideration was paid by the Reporting Person for any of the Class A Shares.

F9 · ownership.nature: The Reporting Person is the managing member of IGSB Cardinal I. 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.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · nonDerivative · entry 8

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Pension Trust

Disclosed balance after: 9,107

F7 · kind: 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. On November 20, 2024, 30,326 of these Class A Shares were transferred for no consideration from the pension trust to a third party, which had the effect of reducing the number of Class A Shares owned by the pension trust, and over which the Reporting Person possesses beneficial ownership, to 9,107 Class A Shares.

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. On November 20, 2024, 30,326 of these Class A Shares were transferred for no consideration from the pension trust to a third party, which had the effect of reducing the number of Class A Shares owned by the pension trust, and over which the Reporting Person possesses beneficial ownership, to 9,107 Class A Shares.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · nonDerivative · entry 7

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 0

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · nonDerivative · entry 6

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 53

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $229.45 to $229.85, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · nonDerivative · entry 5

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 459

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $228.14 to $229.11, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · nonDerivative · entry 4

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 1,059

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · nonDerivative · entry 3

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 1,159

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $228.03 to $228.77, 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.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · nonDerivative · entry 2

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 2,459

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $229.32 to $229.91, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-027386 · form4-11212024_021116.xml · nonDerivative · entry 1

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Family Trust

Disclosed balance after: 3,861

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $228.28 to $229.27, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001433195-24-000143 · wk-form4_1732055566.xml · nonDerivative · entry 1

Trigg William Shane · CIK 0001837400 · Director · Chief Executive Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 74,327

F1 · shares: These shares were sold pursuant to a Rule 10b5-1 Plan adopted by Reporting Person on or around May 10, 2024.

SEC source: 0001433195-24-000140 · wk-form4_1731713068.xml · nonDerivative · entry 5

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,266

F1 · kind: These shares were sold pursuant to a plan adopted by the Reporting Person on or around May 16, 2024.

F6 · price: The price reported in Column 4 is a weighted-average price. The price actually received ranges from $238.74 to $238.93. For all transactions reported in this Form 4 utilizing a weighted-average price, the Reporting Person undertakes to provide upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001433195-24-000140 · wk-form4_1731713068.xml · nonDerivative · entry 4

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 29,032

F1 · kind: These shares were sold pursuant to a plan adopted by the Reporting Person on or around May 16, 2024.

F5 · price: The price reported in Column 4 is a weighted-average price. The price actually received ranges from $237.72 to $238.71 For all transactions reported in this Form 4 utilizing a weighted-average price, the Reporting Person undertakes to provide upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001433195-24-000140 · wk-form4_1731713068.xml · nonDerivative · entry 3

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 29,366

F1 · kind: These shares were sold pursuant to a plan adopted by the Reporting Person on or around May 16, 2024.

F4 · price: The price reported in Column 4 is a weighted-average price. The price actually received ranges from $236.41 to $237.23. For all transactions reported in this Form 4 utilizing a weighted-average price, the Reporting Person undertakes to provide upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001433195-24-000140 · wk-form4_1731713068.xml · nonDerivative · entry 2

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,675

F1 · kind: These shares were sold pursuant to a plan adopted by the Reporting Person on or around May 16, 2024.

F3 · price: The price reported in Column 4 is a weighted-average price. The price actually received ranges from $235.28 to $236.15. For all transactions reported in this Form 4 utilizing a weighted-average price, the Reporting Person undertakes to provide upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001433195-24-000140 · wk-form4_1731713068.xml · nonDerivative · entry 1

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,275

F1 · kind: These shares were sold pursuant to a plan adopted by the Reporting Person on or around May 16, 2024.

F2 · price: The price reported in Column 4 is a weighted-average price. The price actually received ranges from $234.16 to $235.12. For all transactions reported in this Form 4 utilizing a weighted-average price, the Reporting Person undertakes to provide upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range.

SEC source: 0001433195-24-000134 · wk-form4_1731505977.xml · nonDerivative · entry 7

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,819

F7 · shares: Consists of Class A Common Stock sold pursuant to a plan adopted by the Reporting Person on or around May 16, 2024.

SEC source: 0001433195-24-000136 · wk-form4_1731506077.xml · nonDerivative · entry 5

Eaton Timothy Mathias · CIK 0002043379 · Int. Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,783

F5 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on March 5, 2024 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000136 · wk-form4_1731506077.xml · nonDerivative · entry 4

Eaton Timothy Mathias · CIK 0002043379 · Int. Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,812

F4 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on March 6, 2023 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000136 · wk-form4_1731506077.xml · nonDerivative · entry 3

Eaton Timothy Mathias · CIK 0002043379 · Int. Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,865

F3 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on February 9, 2022 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000136 · wk-form4_1731506077.xml · nonDerivative · entry 2

Eaton Timothy Mathias · CIK 0002043379 · Int. Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,914

F2 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on March 11, 2024 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000136 · wk-form4_1731506077.xml · nonDerivative · entry 1

Eaton Timothy Mathias · CIK 0002043379 · Int. Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,934

F1 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the time-based restricted stock units ("RSUs") previously granted to the Reporting Person on November 6, 2023 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000135 · wk-form4_1731506029.xml · nonDerivative · entry 6

Trigg William Shane · CIK 0001837400 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,827

F6 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on January 24, 2024 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000135 · wk-form4_1731506029.xml · nonDerivative · entry 5

Trigg William Shane · CIK 0001837400 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,046

F5 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on March 1, 2023 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000135 · wk-form4_1731506029.xml · nonDerivative · entry 4

Trigg William Shane · CIK 0001837400 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,423

F4 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on January 24, 2023 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000135 · wk-form4_1731506029.xml · nonDerivative · entry 3

Trigg William Shane · CIK 0001837400 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,216

F3 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the time-based restricted stock units ("RSUs") previously granted to the Reporting Person on December 13, 2021 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000135 · wk-form4_1731506029.xml · nonDerivative · entry 2

Trigg William Shane · CIK 0001837400 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,453

F2 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the PSUs previously granted to the Reporting Person in January 25, 2023 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000135 · wk-form4_1731506029.xml · nonDerivative · entry 1

Trigg William Shane · CIK 0001837400 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,159

F1 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the performance-based restricted stock units ("PSUs") previously granted to the Reporting Person on December 13, 2021 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000134 · wk-form4_1731505977.xml · nonDerivative · entry 6

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,745

F6 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligation of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on October 27, 2021 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000134 · wk-form4_1731505977.xml · nonDerivative · entry 5

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,651

F5 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on January 23, 2024 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000134 · wk-form4_1731505977.xml · nonDerivative · entry 4

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,768

F4 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the RSUs previously granted to the Reporting Person on January 24, 2023 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000134 · wk-form4_1731505977.xml · nonDerivative · entry 3

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,938

F3 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the time-based restricted stock units ("RSUs") previously granted to the Reporting Person on December 13, 2021 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000134 · wk-form4_1731505977.xml · nonDerivative · entry 2

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,144

F2 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the PSUs previously granted to the Reporting Person on January 25, 2023 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001433195-24-000134 · wk-form4_1731505977.xml · nonDerivative · entry 1

Mazza Matthew S · CIK 0001915860 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 39,510

F1 · shares: Consists of Class A Common Stock withheld by the Issuer to satisfy the minimum tax withholding obligations of the Reporting Person arising in connection with the vesting on November 10, 2024 of the performance-based restricted stock units ("PSUs") previously granted to the Reporting Person on December 13, 2021 pursuant to the Issuer's 2015 Stock Incentive Plan.

SEC source: 0001415889-24-025799 · form4-10302024_111030.xml · nonDerivative · entry 1

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By Pension Trust

Disclosed balance after: 39,433

F1 · kind: 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. On October 29, 2024, 4,604 of these Class A Shares were transferred for no consideration from the pension trust to an Individual Retirement Account of a third party, which had the effect of reducing the number of Class A Shares owned by the pension trust and over which the Reporting Person possesses beneficial ownership to 39,433 Class A Shares.

F1 · 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. On October 29, 2024, 4,604 of these Class A Shares were transferred for no consideration from the pension trust to an Individual Retirement Account of a third party, which had the effect of reducing the number of Class A Shares owned by the pension trust and over which the Reporting Person possesses beneficial ownership to 39,433 Class A Shares.

SEC source: 0001415889-24-024989 · form4-10102024_111053.xml · derivative · entry 8

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,619,444

Underlying: Class A Common Stock · 22,028 shares

Expires not disclosed

F3 · kind: Five Class A Shares and 22,028 Class B Shares were received by the Reporting Person upon the dissolution of IGSB Cardinal Core MX, LLC. No consideration was paid by the Reporting Person for any of the Class A Shares or Class B Shares distributed to him.

F7 · derivative.exercise_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F8 · derivative.exercise_date: (Continued from Footnote 7) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

F7 · derivative.expiration_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F8 · derivative.expiration_date: (Continued from Footnote 7) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

SEC source: 0001415889-24-024989 · form4-10102024_111053.xml · derivative · entry 7

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By IGSB Cardinal Core MX, LLC

Disclosed balance after: 0

Underlying: Class A Common Stock · 22,028 shares

Expires not disclosed

F1 · kind: IGSB Cardinal Core MX, LLC was dissolved on October 8, 2024, resulting in the distribution of an aggregate of 2,572 shares of Class A Common Stock ("Class A Shares") and 22,028 shares of Class B Common Stock ("Class B Shares") to the investors in IGSB Cardinal Core MX, LLC. No consideration was paid by any of the investors for the Class A Shares or Class B Shares distributed to them.

F7 · derivative.exercise_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F8 · derivative.exercise_date: (Continued from Footnote 7) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

F7 · derivative.expiration_date: Each Class B Share is convertible, at any time at the option of the holder, into one Class A Share. In addition, Class B Shares that are sold or otherwise transferred will convert automatically, on a one share-for-one share basis, into Class A Shares, except for (i) any transfer by a partnership or limited liability company that was a registered holder of Class B Shares prior to June 30, 2015 that is made to anyone who was a partner or member of any such partnership or limited liability company prior to June 30, 2015, and (ii) any transfer to a "qualified recipient" (as defined in AppFolio's Amended and Restated Certificate of Incorporation).

F8 · derivative.expiration_date: (Continued from Footnote 7) AppFolio's Class B Shares do not have an expiration date. However, all of the outstanding Class B Shares will convert automatically into Class A Shares, on a one share-for-one share basis, on the date when the number of the Company's outstanding Class B Shares represents less than 10% of the sum of AppFolio's outstanding Class A Shares and Class B Shares.

F2 · ownership.nature: Prior to the dissolution, the Reporting Person was the managing member of IGSB Cardinal Core MX, LLC and possessed sole voting and dispositive power over the shares held by IGSB Cardinal Core MX, LLC.

SEC source: 0001415889-24-024989 · form4-10102024_111053.xml · nonDerivative · entry 2

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,388

F3 · kind: Five Class A Shares and 22,028 Class B Shares were received by the Reporting Person upon the dissolution of IGSB Cardinal Core MX, LLC. No consideration was paid by the Reporting Person for any of the Class A Shares or Class B Shares distributed to him.

SEC source: 0001415889-24-024989 · form4-10102024_111053.xml · nonDerivative · entry 1

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By IGSB Cardinal Core MX, LLC

Disclosed balance after: 0

F1 · kind: IGSB Cardinal Core MX, LLC was dissolved on October 8, 2024, resulting in the distribution of an aggregate of 2,572 shares of Class A Common Stock ("Class A Shares") and 22,028 shares of Class B Common Stock ("Class B Shares") to the investors in IGSB Cardinal Core MX, LLC. No consideration was paid by any of the investors for the Class A Shares or Class B Shares distributed to them.

F2 · ownership.nature: Prior to the dissolution, the Reporting Person was the managing member of IGSB Cardinal Core MX, LLC and possessed sole voting and dispositive power over the shares held by IGSB Cardinal Core MX, LLC.

SEC source: 0001415889-24-023973 · form4-09252024_100900.xml · nonDerivative · entry 12

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,383

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $238.48 to $239.36, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-023973 · form4-09252024_100900.xml · nonDerivative · entry 11

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,633

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $236.67 to $237.66, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001415889-24-023973 · form4-09252024_100900.xml · nonDerivative · entry 10

DUCA MAURICE J · CIK 0000938333 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,090

F1 · kind: Sales made pursuant to a 10(b)5-1 trading plan previously adopted by the Reporting Person on March 15, 2024.

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 $235.58 to $236.32, 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.