X0609 4 2026-05-10 0 0001433195 APPFOLIO INC APPF 0002054905 Barat Elizabeth Erin false 70 CASTILIAN DRIVE SANTA BARBARA CA 93117 0 1 0 0 Chief People Officer 0 Class A Common Stock 2026-05-10 4 F 0 301 166.59 D 24466 D Class A Common Stock 2026-05-10 4 F 0 270 166.59 D 24196 D Class A Common Stock 2026-05-10 4 F 0 142 166.59 D 24054 D Class A Common Stock 2026-05-10 4 F 0 102 166.59 D 23952 D Class A Common Stock 2026-05-10 4 F 0 146 166.59 D 23806 D Class A Common Stock 2026-05-10 4 F 0 110 166.59 D 23696 D Class A Common Stock 2026-05-10 4 F 0 88 166.59 D 23608 D Class A Common Stock 2026-05-10 4 F 0 85 166.59 D 23523 D Class A Common Stock 2026-05-12 4 S 0 1978 158.12 D 21545 D 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 May 10, 2026 of the performance-based restricted stock units ("PSUs") previously granted to the Reporting Person on January 29, 2025 pursuant to the Issuer's 2025 Omnibus Plan. 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 May 10, 2026 of the PSUs previously granted to the Reporting Person on January 24, 2024 pursuant to the Issuer's 2015 Stock Incentive Plan. 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 May 10, 2026 of the time-based restricted stock units ("RSUs") previously granted to the Reporting Person on January 27, 2026 pursuant to the Issuer's 2025 Omnibus Plan. 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 May 10, 2026 of the RSUs previously granted to the Reporting Person on January 28, 2025 pursuant to the Issuer's 2025 Omnibus Plan. 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 May 10, 2026 of the RSUs previously granted to the Reporting Person on January 23, 2024 pursuant to the Issuer's 2015 Stock Incentive Plan. 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 May 10, 2026 of the RSUs previously granted to the Reporting Person on April 25, 2023 pursuant to the Issuer's 2015 Stock Incentive Plan. 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 May 10, 2026 of the RSUs previously granted to the Reporting Person on January 24, 2023 pursuant to the Issuer's 2015 Stock Incentive Plan. This transaction was executed in multiple trades with sales prices ranging from $158.00 to $158.23. The price reported above reflects the weighted average sales price for the cumulative trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer information regarding the individual trades. /s/ Evan Pickering, as Attorney-in-Fact, for Elizabeth E. Barat 2026-05-12