SEC Form 4 · accession 0000938333-26-000021
APPFOLIO INC · APPF
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Maurice J Duca
10% Owner
Period of report
Aug 18, 2026
Accepted (ET)
Aug 20, 2026 · 6:33 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001433195
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A Common StockF2 | Aug 18, 2026 | S | 15 | $197.84 | D | 31,647 | D | |
| Class A Common StockF3 | Aug 18, 2026 | S | 18 | $198.89 | D | 31,629 | D | |
| Class A Common StockF4 | Aug 18, 2026 | S | 42 | $200.29 | D | 31,587 | D | |
| Class A Common StockF5 | Aug 18, 2026 | S | 64 | $201.49 | D | 31,523 | D | |
| Class A Common StockF6 | Aug 18, 2026 | S | 41 | $202.77 | D | 31,482 | D | |
| Class A Common StockF7 | Aug 18, 2026 | S | 314 | $203.87 | D | 31,168 | D | |
| Class A Common StockF8 | Aug 18, 2026 | S | 113 | $204.98 | D | 31,055 | D | |
| Class A Common StockF9 | Aug 18, 2026 | S | 50 | $205.95 | D | 31,005 | D | |
| Class A Common StockF2 | Aug 18, 2026 | S | 35 | $197.81 | D | 12,989 | I | By Family Trust |
| Class A Common StockF3 | Aug 18, 2026 | S | 45 | $198.90 | D | 12,944 | I | By Family Trust |
| Class A Common StockF4 | Aug 18, 2026 | S | 102 | $200.29 | D | 12,842 | I | By Family Trust |
| Class A Common StockF5 | Aug 18, 2026 | S | 160 | $201.49 | D | 12,682 | I | By Family Trust |
| Class A Common StockF6 | Aug 18, 2026 | S | 100 | $202.77 | D | 12,582 | I | By Family Trust |
| Class A Common StockF7 | Aug 18, 2026 | S | 755 | $203.88 | D | 11,827 | I | By Family Trust |
| Class A Common StockF8 | Aug 18, 2026 | S | 281 | $204.98 | D | 11,546 | I | By Family Trust |
| Class A Common StockF9 | Aug 18, 2026 | S | 122 | $205.95 | D | 11,424 | I | By Family Trust |
| Class A Common StockF2,F10 | Aug 18, 2026 | S | 123 | $197.80 | D | 50,609 | I | By Pension Trust |
| Class A Common StockF11,F10 | Aug 18, 2026 | S | 164 | $198.90 | D | 50,445 | I | By Pension Trust |
| Class A Common StockF4,F10 | Aug 18, 2026 | S | 356 | $200.29 | D | 50,089 | I | By Pension Trust |
| Class A Common StockF5,F10 | Aug 18, 2026 | S | 576 | $201.49 | D | 49,513 | I | By Pension Trust |
| Class A Common StockF6,F10 | Aug 18, 2026 | S | 359 | $202.77 | D | 49,154 | I | By Pension Trust |
| Class A Common StockF7,F10 | Aug 18, 2026 | S | 2,588 | $203.88 | D | 46,566 | I | By Pension Trust |
| Class A Common StockF8,F10 | Aug 18, 2026 | S | 1,000 | $204.98 | D | 45,566 | I | By Pension Trust |
| Class A Common StockF9,F10 | Aug 18, 2026 | S | 434 | $205.95 | D | 45,132 | I | By Pension Trust |
| Class A Common Stock | Aug 19, 2026 | S | 22 | $202.61 | D | 11,402 | I | By Family Trust |
| Class A Common Stock | Aug 19, 2026 | S | 22 | $203.98 | D | 11,380 | I | By Family Trust |
| Class A Common StockF12 | Aug 19, 2026 | S | 38 | $206.46 | D | 11,342 | I | By Family Trust |
| Class A Common Stock | Aug 19, 2026 | S | 7 | $207.27 | D | 11,335 | I | By Family Trust |
| Class A Common StockF13 | Aug 19, 2026 | S | 44 | $209.12 | D | 11,291 | I | By Family Trust |
| Class A Common StockF14 | Aug 19, 2026 | S | 66 | $211.18 | D | 11,225 | I | By Family Trust |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Sales made pursuant to a 10b5-1 trading plan previously adopted by the Reporting Person on March 13, 2026.
- F10These 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.
- F11This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $198.825 to $199.10, 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.
- F12This 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.
- F13This 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.
- F14This 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.
- F2This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $197.50 to $198.38, 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.
- F3This price reflects the weighted average price at which these shares were sold. The shares were sold in multiple transactions at prices ranging from $198.825 to $199.01, 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.
- F4This 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.
- F5This 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.
- F6This 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.
- F7This 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.
- F8This 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.
- F9This 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.
Remarks
Due to a 30 line-item limitation in Table I, this is the first of two Forms 4 filed by the Reporting Person on August 20, 2026.