Browse the latest SEC filings and forms submitted by Cyngn Inc. (CYN). Access annual reports, quarterly statements, and other official disclosures.
View Insider Transactions for Cyngn Inc. (CYN).
Search Company Filings →| Form | Filing Date | Description | Link |
|---|---|---|---|
| 10-K | March 27, 2026 | ANNUAL REPORT | View Document |
| 8-K | March 25, 2026 | CURRENT REPORT | View Document |
| 424B5 | March 17, 2026 | PROSPECTUS SUPPLEMENT | View Document |
| 8-K | March 17, 2026 | CURRENT REPORT | View Document |
| 8-K | March 16, 2026 | CURRENT REPORT | View Document |
| 8-K | Feb. 9, 2026 | CURRENT REPORT | View Document |
| 8-K | Jan. 30, 2026 | CURRENT REPORT | View Document |
| S-8 | Jan. 28, 2026 | REGISTRATION STATEMENT | View Document |
| SCHEDULE 13G/A | Jan. 7, 2026 | - | View Document |
| 8-K | Dec. 5, 2025 | CURRENT REPORT | View Document |
| 8-K | Dec. 4, 2025 | CURRENT REPORT | View Document |
| 8-K | Nov. 19, 2025 | CURRENT REPORT | View Document |
| 10-Q | Nov. 19, 2025 | QUARTERLY REPORT | View Document |
| 10-K/A | Nov. 14, 2025 | AMENDMENT NO. 1 TO FORM 10-K | View Document |
| NT 10-Q | Nov. 14, 2025 | NOTIFICATION OF LATE FILING | View Document |
| 8-K | Nov. 7, 2025 | CURRENT REPORT | View Document |
| 8-K | Oct. 24, 2025 | CURRENT REPORT | View Document |
| DEF 14A | Oct. 22, 2025 | PROXY STATEMENT | View Document |
| DEFA14A | Oct. 22, 2025 | PROXY STATEMENT | View Document |
| SCHEDULE 13G/A | Oct. 21, 2025 | - | View Document |
| 8-K | Oct. 17, 2025 | CURRENT REPORT | View Document |
| DEFA14A | Oct. 6, 2025 | DEFINITIVE ADDITIONAL MATERIALS | View Document |
| 8-K | Oct. 6, 2025 | CURRENT REPORT | View Document |
| EFFECT | Sept. 18, 2025 | - | View Document |
| CORRESP | Sept. 16, 2025 | - | View Document |
| UPLOAD | Sept. 15, 2025 | - | View Document |
| 8-K | Sept. 5, 2025 | CURRENT REPORT | View Document |
| S-3 | Sept. 5, 2025 | REGISTRATION STATEMENT | View Document |
| DEFA14A | Aug. 19, 2025 | DEFINITIVE ADDITIONAL MATERIALS | View Document |
| DEF 14A | Aug. 19, 2025 | PROXY STATEMENT | View Document |
| 8-K | Aug. 15, 2025 | CURRENT REPORT | View Document |
| PRE 14A | Aug. 8, 2025 | PROXY STATEMENT | View Document |
| 10-Q | Aug. 7, 2025 | QUARTERLY REPORT | View Document |
| 8-K | Aug. 7, 2025 | CURRENT REPORT | View Document |
| SCHEDULE 13G | July 31, 2025 | - | View Document |
| 8-K | June 30, 2025 | CURRENT REPORT | View Document |
| 424B5 | June 30, 2025 | PROSPECTUS SUPPLEMENT | View Document |
| 424B5 | June 27, 2025 | PROSPECTUS SUPPLEMENT | View Document |
| 8-K | June 27, 2025 | CURRENT REPORT | View Document |
| 8-K | June 6, 2025 | CURRENT REPORT | View Document |
| 3 | May 15, 2025 | - | View Document |
| 3 | May 15, 2025 | - | View Document |
| SCHEDULE 13G/A | May 15, 2025 | - | View Document |
| SCHEDULE 13G/A | May 14, 2025 | - | View Document |
| 8-K | May 8, 2025 | CURRENT REPORT | View Document |
| 10-Q | May 8, 2025 | QUARTERLY REPORT | View Document |
| 8-K | April 25, 2025 | CURRENT REPORT | View Document |
| S-8 | March 21, 2025 | REGISTRATION STATEMENT | View Document |
| 10-K | March 6, 2025 | ANNUAL REPORT | View Document |
| 8-K | March 5, 2025 | CURRENT REPORT | View Document |
| 8-K | Feb. 28, 2025 | CURRENT REPORT | View Document |
| SCHEDULE 13G/A | Feb. 14, 2025 | - | View Document |
| SCHEDULE 13G | Feb. 14, 2025 | - | View Document |
| SCHEDULE 13G/A | Feb. 14, 2025 | - | View Document |
| SCHEDULE 13G/A | Feb. 13, 2025 | - | View Document |
| 8-K | Feb. 12, 2025 | CURRENT REPORT | View Document |
| SCHEDULE 13G/A | Feb. 7, 2025 | - | View Document |
| 8-K | Feb. 6, 2025 | FORM 8-K | View Document |
| 8-K | Jan. 30, 2025 | CURRENT REPORT | View Document |
| SCHEDULE 13G | Jan. 8, 2025 | - | View Document |
| SCHEDULE 13G/A | Jan. 8, 2025 | - | View Document |
| SCHEDULE 13G | Jan. 7, 2025 | - | View Document |
| DEF 14A | Jan. 6, 2025 | PROXY STATEMENT | View Document |
| SCHEDULE 13G/A | Jan. 3, 2025 | - | View Document |
| 424B5 | Dec. 31, 2024 | PROSPECTUS SUPPLEMENT | View Document |
| 8-K | Dec. 31, 2024 | CURRENT REPORT | View Document |
| SCHEDULE 13G | Dec. 31, 2024 | - | View Document |
| SCHEDULE 13G | Dec. 31, 2024 | - | View Document |
| PRE 14A | Dec. 23, 2024 | PRELIMINARY PROXY STATEMENT | View Document |
| 424B4 | Dec. 23, 2024 | PROSPECTUS | View Document |
| 8-K | Dec. 23, 2024 | CURRENT REPORT | View Document |
| EFFECT | Dec. 19, 2024 | - | View Document |
| S-1/A | Dec. 18, 2024 | AMENDMENT NO. 1 TO FORM S-1 | View Document |
| CORRESP | Dec. 18, 2024 | - | View Document |
| CORRESP | Dec. 18, 2024 | - | View Document |
| EFFECT | Dec. 6, 2024 | - | View Document |
| 424B3 | Dec. 6, 2024 | PROSPECTUS | View Document |
| UPLOAD | Dec. 5, 2024 | - | View Document |
| CORRESP | Dec. 5, 2024 | - | View Document |
| UPLOAD | Dec. 4, 2024 | - | View Document |
| S-1 | Nov. 27, 2024 | REGISTRATION STATEMENT | View Document |
| S-3 | Nov. 25, 2024 | REGISTRATION STATEMENT | View Document |
| D | Nov. 25, 2024 | - | View Document |
| SC 13G/A | Nov. 13, 2024 | SC 13G/A | View Document |
| 8-K | Nov. 12, 2024 | CURRENT REPORT | View Document |
| 10-Q | Nov. 7, 2024 | QUARTERLY REPORT | View Document |
| 8-K | Nov. 7, 2024 | CURRENT REPORT | View Document |
| 1-A-W | Oct. 30, 2024 | WITHDRAWAL OF OFFERING STATEMENT | View Document |
| 1-A/A | Oct. 17, 2024 | - | View Document |
| 1-A/A | Sept. 30, 2024 | - | View Document |
| 1-A | Aug. 15, 2024 | - | View Document |
| 8-K | Aug. 9, 2024 | CURRENT REPORT | View Document |
| 10-Q | Aug. 8, 2024 | QUARTERLY REPORT | View Document |
| 8-K | July 9, 2024 | CURRENT REPORT | View Document |
| 8-K | June 25, 2024 | CURRENT REPORT | View Document |
| DEFA14A | May 31, 2024 | SOLICITING MATERIAL | View Document |
| DEF 14A | May 21, 2024 | PROXY STATEMENT | View Document |
| 8-K | May 17, 2024 | CURRENT REPORT | View Document |
| 8-K | May 10, 2024 | CURRENT REPORT | View Document |
| PRE 14A | May 10, 2024 | PRELIMINARY PROXY STATEMENT | View Document |
| 10-Q | May 9, 2024 | QUARTERLY REPORT | View Document |
| 8-K | May 9, 2024 | CURRENT REPORT | View Document |
| 4 | May 3, 2024 | - | View Document |
| 4 | May 3, 2024 | - | View Document |
| 4 | May 3, 2024 | - | View Document |
| 8-K | April 24, 2024 | CURRENT REPORT | View Document |
| 424B4 | April 24, 2024 | PROSPECTUS | View Document |
| EFFECT | April 23, 2024 | - | View Document |
| CORRESP | April 23, 2024 | - | View Document |
| CORRESP | April 23, 2024 | - | View Document |
| S-1/A | April 23, 2024 | AMENDMENT NO.1 TO FORM S-1 | View Document |
| UPLOAD | April 18, 2024 | - | View Document |
| 8-K | April 18, 2024 | CURRENT REPORT | View Document |
| S-1 | April 12, 2024 | REGISTRATION STATEMENT | View Document |
| 10-K | March 7, 2024 | ANNUAL REPORT | View Document |
| 8-K | March 6, 2024 | CURRENT REPORT | View Document |
| 8-K | Feb. 21, 2024 | CURRENT REPORT | View Document |
| SC 13G/A | Feb. 14, 2024 | SC 13G/A | View Document |
| SC 13G/A | Feb. 13, 2024 | SC 13G/A | View Document |
| S-8 | Jan. 31, 2024 | REGISTRATION STATEMENT | View Document |
| SC 13G/A | Jan. 23, 2024 | CYNGN INC. | View Document |
| SC 13G | Jan. 10, 2024 | CYNGN INC. | View Document |
| SC 13G | Jan. 4, 2024 | CYN 13G 1.04.24 | View Document |
| 424B4 | Dec. 11, 2023 | PROSPECTUS | View Document |
| 8-K | Dec. 11, 2023 | CURRENT REPORT | View Document |
| EFFECT | Dec. 7, 2023 | - | View Document |
| CORRESP | Dec. 6, 2023 | - | View Document |
| CORRESP | Dec. 6, 2023 | - | View Document |
| S-1/A | Dec. 5, 2023 | AMENDMENT NO. 2 TO FORM S-1 | View Document |
| S-1/A | Nov. 28, 2023 | AMENDMENT NO. 1 TO FORM S-1 | View Document |
| UPLOAD | Nov. 21, 2023 | - | View Document |
| S-1 | Nov. 14, 2023 | REGISTRATION STATEMENT | View Document |
| 10-Q | Nov. 9, 2023 | QUARTERLY REPORT | View Document |
| 4 | Nov. 9, 2023 | - | View Document |
| 4 | Nov. 9, 2023 | - | View Document |
| 4 | Nov. 9, 2023 | - | View Document |
| 8-K | Nov. 9, 2023 | FORM 8-K | View Document |
| 8-K | Nov. 8, 2023 | CURRENT REPORT | View Document |
| 8-K | Oct. 26, 2023 | CURRENT REPORT | View Document |
| DEF 14A | Oct. 3, 2023 | PROXY STATEMENT | View Document |
| 8-K | Oct. 2, 2023 | CURRENT REPORT | View Document |
| PRE 14A | Sept. 22, 2023 | PROXY STATEMENT | View Document |
| 8-K | Aug. 25, 2023 | FORM 8-K | View Document |
| 10-Q | Aug. 10, 2023 | QUARTERLY REPORT | View Document |
| 8-K | Aug. 9, 2023 | CURRENT REPORT | View Document |
| 424B3 | June 15, 2023 | PROSPECTUS | View Document |
| EFFECT | June 13, 2023 | - | View Document |
| CORRESP | June 12, 2023 | - | View Document |
| 4 | May 31, 2023 | - | View Document |
| 4 | May 31, 2023 | - | View Document |
| 8-K | May 31, 2023 | CURRENT REPORT | View Document |
| S-3/A | May 31, 2023 | AMENDMENT NO. 1 TO FORM S-3 | View Document |
| 4 | May 31, 2023 | - | View Document |
| 10-Q | May 11, 2023 | QUARTERLY REPORT | View Document |
| 8-K | May 10, 2023 | CURRENT REPORT | View Document |
| UPLOAD | May 5, 2023 | - | View Document |
| S-3 | May 2, 2023 | REGISTRATION STATEMENT | View Document |
| 4 | April 4, 2023 | - | View Document |
| 8-K | March 29, 2023 | CURRENT REPORT | View Document |
| 10-K | March 17, 2023 | ANNUAL REPORT | View Document |
| 8-K | March 15, 2023 | CURRENT REPORT | View Document |
| 424B3 | Jan. 20, 2023 | PROSPECTUS | View Document |
| EFFECT | Jan. 18, 2023 | - | View Document |
| POS AM | Jan. 9, 2023 | POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-1 | View Document |
| 8-K | Dec. 16, 2022 | FORM 8-K | View Document |
| 10-Q | Nov. 10, 2022 | QUARTERLY REPORT | View Document |
| 4 | Nov. 10, 2022 | - | View Document |
| 4 | Nov. 10, 2022 | - | View Document |
| 4 | Nov. 10, 2022 | - | View Document |
| 8-K | Nov. 9, 2022 | CURRENT REPORT | View Document |
| 8-K | Aug. 11, 2022 | CURRENT REPORT | View Document |
| 10-Q | Aug. 11, 2022 | QUARTERLY REPORT | View Document |
| 8-K | Aug. 10, 2022 | CURRENT REPORT | View Document |
| 4 | Aug. 1, 2022 | - | View Document |
| 4 | July 20, 2022 | - | View Document |
| 4 | July 20, 2022 | - | View Document |
| 4 | July 20, 2022 | - | View Document |
| DEF 14A | June 22, 2022 | DEFINITIVE PROXY STATEMENTS | View Document |
| 8-K | June 22, 2022 | CURRENT REPORT | View Document |
| 8-K | May 24, 2022 | CURRENT REPORT | View Document |
| 424B3 | May 17, 2022 | PROSPECTUS | View Document |
| EFFECT | May 17, 2022 | - | View Document |
| CORRESP | May 13, 2022 | - | View Document |
| UPLOAD | May 13, 2022 | - | View Document |
| 10-Q | May 12, 2022 | QUARTERLY REPORT | View Document |
| 8-K | May 12, 2022 | CURRENT REPORT | View Document |
| S-1 | May 12, 2022 | REGISTRATION STATEMENT | View Document |
| 4 | May 4, 2022 | - | View Document |
| 4 | May 3, 2022 | - | View Document |
| 4 | May 3, 2022 | - | View Document |
| D | May 3, 2022 | - | View Document |
| 8-K | April 29, 2022 | CURRENT REPORT | View Document |
| 10-K | March 24, 2022 | ANNUAL REPORT | View Document |
| 8-K | Feb. 23, 2022 | CURRENT REPORT | View Document |
| SC 13G | Feb. 14, 2022 | SC 13G | View Document |
| SC 13G | Feb. 14, 2022 | SC 13G | View Document |
| SC 13G | Feb. 11, 2022 | SC 13G | View Document |
| SC 13D | Feb. 8, 2022 | SCHEDULE 13D | View Document |
| 4 | Feb. 3, 2022 | - | View Document |
| S-8 | Jan. 12, 2022 | REGISTRATION STATEMENT | View Document |
| 8-K | Jan. 6, 2022 | CURRENT REPORT | View Document |
| 8-K | Nov. 19, 2021 | CURRENT REPORT | View Document |
| 10-Q | Nov. 19, 2021 | QUARTERLY REPORT | View Document |
| 4 | Nov. 17, 2021 | - | View Document |
| 4 | Nov. 17, 2021 | - | View Document |
| 4 | Nov. 17, 2021 | - | View Document |
| 8-K | Nov. 17, 2021 | CURRENT REPORT | View Document |
| 8-K | Nov. 4, 2021 | CURRENT REPORT | View Document |
| 4 | Oct. 26, 2021 | FORM 4 SUBMISSION | View Document |
| 3 | Oct. 25, 2021 | - | View Document |
| 4 | Oct. 22, 2021 | OWNERSHIP DOCUMENT | View Document |
| 4 | Oct. 22, 2021 | - | View Document |
| 4 | Oct. 22, 2021 | - | View Document |
| 4 | Oct. 22, 2021 | OWNERSHIP DOCUMENT | View Document |
| 424B4 | Oct. 21, 2021 | PROSPECTUS | View Document |
| 8-A12B | Oct. 19, 2021 | REGISTRATION OF CERTAIN CLASSES OF SECURITIES | View Document |
| EFFECT | Oct. 19, 2021 | - | View Document |
| 3 | Oct. 19, 2021 | FORM 3 SUBMISSION | View Document |
| 3 | Oct. 19, 2021 | OWNERSHIP DOCUMENT | View Document |
| 3 | Oct. 19, 2021 | - | View Document |
| 3 | Oct. 19, 2021 | - | View Document |
| 3 | Oct. 19, 2021 | - | View Document |
| 3 | Oct. 19, 2021 | - | View Document |
| 3 | Oct. 19, 2021 | - | View Document |
| 3 | Oct. 19, 2021 | - | View Document |
| 3 | Oct. 19, 2021 | - | View Document |
| 3 | Oct. 19, 2021 | - | View Document |
| CERT | Oct. 19, 2021 | - | View Document |
| CORRESP | Oct. 18, 2021 | - | View Document |
| CORRESP | Oct. 18, 2021 | - | View Document |
| S-1/A | Oct. 15, 2021 | REGISTRATION STATEMENT | View Document |
| FWP | Oct. 12, 2021 | FREE WRITING PROSPECTUS | View Document |
| S-1/A | Sept. 30, 2021 | REGISTRATION STATEMENT | View Document |
| CORRESP | Sept. 29, 2021 | - | View Document |
| UPLOAD | Sept. 20, 2021 | - | View Document |
| S-1 | Sept. 3, 2021 | REGISTRATION STATEMENT | View Document |
| CORRESP | Sept. 2, 2021 | - | View Document |
| UPLOAD | Aug. 23, 2021 | - | View Document |
| DRS | July 28, 2021 | - | View Document |