CYN - CIK 0001874097
Cyngn Inc. has filed 243 documents with the SEC between 2021 and 2026. The most frequent type is major company event (65 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Major company event | 8-K | 2026-05-21 | 2026-05-14 |
| Quarterly report | 10-Q | 2026-05-14 | 2026-03-31 |
| SCHEDULE 13G | - | 2026-04-22 | - |
| Major company event | 8-K | 2026-04-07 | 2026-04-03 |
| Annual report | 10-K | 2026-03-27 | 2025-12-31 |
| Major company event | 8-K | 2026-03-25 | 2026-03-25 |
| Major company event | 8-K | 2026-03-17 | 2026-03-16 |
| Prospectus supplement | 424B5 | 2026-03-17 | - |
| Major company event | 8-K | 2026-03-16 | 2026-03-11 |
| Major company event | 8-K | 2026-02-09 | 2026-02-03 |
| Major company event | 8-K | 2026-01-30 | 2026-01-30 |
| Employee stock plan | S-8 | 2026-01-28 | - |
| SCHEDULE 13G/A | - | 2026-01-07 | - |
| Major company event | 8-K | 2025-12-05 | 2025-12-05 |
| Major company event | 8-K | 2025-12-04 | 2025-12-03 |
| Quarterly report | 10-Q | 2025-11-19 | 2025-09-30 |
| Major company event | 8-K | 2025-11-19 | 2025-11-18 |
| NT 10-Q | - | 2025-11-14 | 2025-09-30 |
| Annual report (amended) | 10-K/A | 2025-11-14 | 2024-12-31 |
| Major company event | 8-K | 2025-11-07 | 2025-11-04 |
| Major company event | 8-K | 2025-10-24 | 2025-10-22 |
| Proxy materials | DEFA14A | 2025-10-22 | - |
| Proxy statement | DEF 14A | 2025-10-22 | 2025-12-03 |
| SCHEDULE 13G/A | - | 2025-10-21 | - |
| Major company event | 8-K | 2025-10-17 | 2025-10-13 |
| Proxy materials | DEFA14A | 2025-10-06 | - |
| Major company event | 8-K | 2025-10-06 | 2025-10-06 |
| EFFECT | - | 2025-09-18 | - |
| Company correspondence | CORRESP | 2025-09-16 | - |
| SEC correspondence | UPLOAD | 2025-09-15 | - |
| Major company event | 8-K | 2025-09-05 | 2025-09-05 |
| Securities registration | S-3 | 2025-09-05 | - |
| Proxy materials | DEFA14A | 2025-08-19 | - |
| Proxy statement | DEF 14A | 2025-08-19 | 2025-10-06 |
| Major company event | 8-K | 2025-08-15 | 2025-08-12 |
| PRE 14A | - | 2025-08-08 | 2025-08-08 |
| Major company event | 8-K | 2025-08-07 | 2025-08-06 |
| Quarterly report | 10-Q | 2025-08-07 | 2025-06-30 |
| SCHEDULE 13G | - | 2025-07-31 | - |
| Major company event | 8-K | 2025-06-30 | 2025-06-27 |
| Prospectus supplement | 424B5 | 2025-06-30 | - |
| Prospectus supplement | 424B5 | 2025-06-27 | - |
| Major company event | 8-K | 2025-06-27 | 2025-06-26 |
| Major company event | 8-K | 2025-06-06 | 2025-06-06 |
| New insider ownership | 3 | 2025-05-15 | 2025-05-06 |
| New insider ownership | 3 | 2025-05-15 | 2025-05-06 |
| SCHEDULE 13G/A | - | 2025-05-15 | - |
| SCHEDULE 13G/A | - | 2025-05-14 | - |
| Quarterly report | 10-Q | 2025-05-08 | 2025-03-31 |
| Major company event | 8-K | 2025-05-08 | 2025-05-07 |