Appian Corp
APPNNasdaqCIK 1441683TechnologyFiscal year ends Dec 31
Reports and events: 186 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-08-0612:33 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0001441683-26-000053 |
| 2026-08-0607:22 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001441683-26-000050 |
| 2026-06-0816:11 ET | 8-K | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001441683-26-000036 |
| 2026-05-0713:07 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0001441683-26-000032 |
| 2026-05-0707:22 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001441683-26-000029 |
| 2026-04-2216:10 ET | DEF 14A | Proxy statementPeriod 2025-12-31 | 0001441683-26-000021 |
| 2026-02-1914:24 ET | 10-K | Annual reportPeriod 2025-12-31 | 0001441683-26-000013 |
| 2026-02-1907:31 ET | 8-K | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001441683-26-000008 |
| 2026-02-0518:44 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000902664-26-000734 |
| 2026-01-2719:42 ET | SCHEDULE 13D | Ownership report, active investor | 0000902664-26-000513 |
| 2026-01-2116:26 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001441683-26-000003 |
| 2025-11-0613:15 ET | 10-Q | Quarterly reportPeriod 2025-09-30 | 0001441683-25-000068 |
| 2025-11-0607:20 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001441683-25-000066 |
| 2025-10-0216:43 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001441683-25-000060 |
| 2025-08-2916:35 ET | 8-K | 8.01 Other events | 0001441683-25-000057 |
| 2025-08-2721:40 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001193125-25-190200 |
| 2025-08-1421:00 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-109180 |
| 2025-08-1120:05 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-106817 |
| 2025-08-0712:27 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0001441683-25-000053 |
| 2025-08-0707:14 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001441683-25-000050 |
| 2025-07-2519:16 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-098922 |
| 2025-07-2221:57 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-097700 |
| 2025-07-0921:16 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-094891 |
| 2025-06-1019:06 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-084562 |
| 2025-06-0516:38 ET | 8-K | 5.07 Shareholder vote results | 0001441683-25-000046 |
| 2025-06-0321:00 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-081330 |
| 2025-05-2816:39 ET | 8-K | 8.01 Other events | 0001441683-25-000044 |
| 2025-05-2021:31 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-075517 |
| 2025-05-0813:16 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0001441683-25-000041 |
| 2025-05-0807:10 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001441683-25-000039 |
| 2025-04-2316:07 ET | DEF 14A | Proxy statementPeriod 2024-12-31 | 0001441683-25-000031 |
| 2025-04-2116:05 ET | 8-K | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001441683-25-000028 |
| 2025-04-1521:57 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0000950170-25-054462 |
| 2025-03-0714:45 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001441683-25-000020 |
| 2025-02-1914:40 ET | 10-K | Annual reportPeriod 2024-12-31 | 0001441683-25-000017 |
| 2025-02-1907:34 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001441683-25-000015 |
| 2024-11-0711:29 ET | 10-Q | Quarterly reportPeriod 2024-09-30 | 0001441683-24-000097 |
| 2024-11-0707:29 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001441683-24-000095 |
| 2024-10-1108:03 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001441683-24-000091 |
| 2024-10-0116:36 ET | 8-K | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001441683-24-000083 |
| 2024-08-2620:30 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-24-207261 |
| 2024-08-1519:43 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-24-201496 |
| 2024-08-0219:49 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-24-193089 |
| 2024-08-0113:17 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0001441683-24-000070 |
| 2024-08-0107:29 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001441683-24-000068 |
| 2024-07-3120:23 ET | 8-K | 8.01 Other events; 9.01 Financial statements and exhibits | 0001441683-24-000065 |
| 2024-07-2420:25 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-24-183994 |
| 2024-07-1221:04 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-24-178696 |
| 2024-07-0921:38 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-24-176900 |
| 2024-06-1016:09 ET | 8-K | 5.07 Shareholder vote results | 0001441683-24-000055 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 30, 2026, 13:39 ET. Listed shows no prices and gives no investment advice.