Cyngn Inc. SEC filings CYN
Cyngn Inc. has 252 filings in SEC EDGAR's recent list, going back to Jul 28, 2021. Its latest annual report, Form 10-K, was filed on Mar 27, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 13, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 30, 2026 (listing notice, officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| DEFA14A | Additional proxy material | Oct 30, 2026 | — |
| 8-K |
Current report
Listing notice, Officer or director change
|
Oct 30, 2026 | Oct 26, 2026 |
| 8-K |
Current report
Listing notice
|
Oct 15, 2026 | Oct 14, 2026 |
| DEF 14A | Proxy statement | Sep 21, 2026 | Nov 3, 2026 |
| PRE 14A | Preliminary proxy statement | Sep 11, 2026 | Sep 11, 2026 |
| 10-Q/A | Amended quarterly report | Aug 14, 2026 | Jun 30, 2026 |
| 10-Q | Quarterly report | Aug 13, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2026 | Aug 12, 2026 |
| 8-K |
Current report
Officer or director change
|
Jul 30, 2026 | Jul 24, 2026 |
| 8-K |
Current report
Results of operations
|
May 21, 2026 | May 14, 2026 |
| 10-Q | Quarterly report | May 14, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Auditor change
|
Apr 7, 2026 | Apr 3, 2026 |
| 10-K | Annual report | Mar 27, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 25, 2026 | Mar 25, 2026 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 17, 2026 | Mar 16, 2026 |
| 424B5 | Prospectus supplement | Mar 17, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Mar 16, 2026 | Mar 11, 2026 |
| 8-K |
Current report
Officer or director change
|
Feb 9, 2026 | Feb 3, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jan 30, 2026 | Jan 30, 2026 |
| S-8 | Employee stock plan registration | Jan 28, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Dec 5, 2025 | Dec 5, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Dec 4, 2025 | Dec 3, 2025 |
| 10-Q | Quarterly report | Nov 19, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 19, 2025 | Nov 18, 2025 |
| NT 10-Q | Notification of late filing | Nov 14, 2025 | Sep 30, 2025 |
| 10-K/A | Amended annual report | Nov 14, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Restatement
|
Nov 7, 2025 | Nov 4, 2025 |
| 8-K |
Current report
Officer or director change
|
Oct 24, 2025 | Oct 22, 2025 |
| DEFA14A | Additional proxy material | Oct 22, 2025 | — |
| DEF 14A | Proxy statement | Oct 22, 2025 | Dec 3, 2025 |
| 8-K | Current report | Oct 17, 2025 | Oct 13, 2025 |
| DEFA14A | Additional proxy material | Oct 6, 2025 | — |
| 8-K |
Current report
Other events
|
Oct 6, 2025 | Oct 6, 2025 |
| EFFECT | Filing | Sep 18, 2025 | — |
| CORRESP | Letter to the SEC | Sep 16, 2025 | — |
| UPLOAD | Letter from the SEC | Sep 15, 2025 | — |
| 8-K |
Current report
Material agreement
|
Sep 5, 2025 | Sep 5, 2025 |
| S-3 | Shelf registration | Sep 5, 2025 | — |
| DEFA14A | Additional proxy material | Aug 19, 2025 | — |
| DEF 14A | Proxy statement | Aug 19, 2025 | Oct 6, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 15, 2025 | Aug 12, 2025 |
| PRE 14A | Preliminary proxy statement | Aug 8, 2025 | Aug 8, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 6, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Jun 30, 2025 | Jun 27, 2025 |
| 424B5 | Prospectus supplement | Jun 30, 2025 | — |
| 8-K |
Current report
Material agreement, Other events
|
Jun 27, 2025 | Jun 26, 2025 |
| 424B5 | Prospectus supplement | Jun 27, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Jun 6, 2025 | Jun 6, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 7, 2025 |
| 8-K |
Current report
Auditor change
|
Apr 25, 2025 | Apr 23, 2025 |
| S-8 | Employee stock plan registration | Mar 21, 2025 | — |
| 10-K | Annual report | Mar 6, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 5, 2025 | Mar 5, 2025 |
| 8-K |
Current report
Officer or director change
|
Feb 28, 2025 | Feb 24, 2025 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change, Other events
|
Feb 12, 2025 | Feb 7, 2025 |
| 8-K |
Current report
Listing notice
|
Feb 6, 2025 | Feb 6, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jan 30, 2025 | Jan 30, 2025 |
| DEF 14A | Proxy statement | Jan 6, 2025 | Jan 30, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 31, 2024 | Dec 30, 2024 |
| 424B5 | Prospectus supplement | Dec 31, 2024 | — |
| PRE 14A | Preliminary proxy statement | Dec 23, 2024 | Dec 23, 2024 |
| 8-K |
Current report
Material agreement
|
Dec 23, 2024 | Dec 20, 2024 |
| 424B4 | Prospectus | Dec 23, 2024 | — |
| EFFECT | Filing | Dec 19, 2024 | — |
| CORRESP | Letter to the SEC | Dec 18, 2024 | — |
| CORRESP | Letter to the SEC | Dec 18, 2024 | — |
| S-1/A | Amended registration statement | Dec 18, 2024 | — |
| EFFECT | Filing | Dec 6, 2024 | — |
| 424B3 | Prospectus | Dec 6, 2024 | — |
| UPLOAD | Letter from the SEC | Dec 5, 2024 | — |
| CORRESP | Letter to the SEC | Dec 5, 2024 | — |
| UPLOAD | Letter from the SEC | Dec 4, 2024 | — |
| S-1 | Registration statement | Nov 27, 2024 | — |
| S-3 | Shelf registration | Nov 25, 2024 | — |
| D | Filing | Nov 25, 2024 | — |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Other events
|
Nov 12, 2024 | Nov 12, 2024 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 6, 2024 |
| 1-A-W | Withdrawal of offering statement | Oct 30, 2024 | — |
| 1-A/A | Filing | Oct 17, 2024 | — |
| 1-A/A | Filing | Sep 30, 2024 | — |
| 1-A | Filing | Aug 15, 2024 | — |
| 8-K |
Current report
Results of operations
|
Aug 9, 2024 | Aug 7, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Jul 9, 2024 | Jul 3, 2024 |
| 8-K |
Current report
Listing notice, Shareholder vote results
|
Jun 25, 2024 | Jun 21, 2024 |
| DEFA14A | Additional proxy material | May 31, 2024 | — |
| DEF 14A | Proxy statement | May 21, 2024 | Jun 25, 2024 |
| 8-K |
Current report
Officer or director change
|
May 17, 2024 | May 15, 2024 |
| PRE 14A | Preliminary proxy statement | May 10, 2024 | May 10, 2024 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
May 10, 2024 | May 7, 2024 |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 9, 2024 | May 8, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Apr 24, 2024 | Apr 23, 2024 |
| 424B4 | Prospectus | Apr 24, 2024 | — |
| EFFECT | Filing | Apr 23, 2024 | — |
| CORRESP | Letter to the SEC | Apr 23, 2024 | — |
| CORRESP | Letter to the SEC | Apr 23, 2024 | — |
| S-1/A | Amended registration statement | Apr 23, 2024 | — |
| UPLOAD | Letter from the SEC | Apr 18, 2024 | — |
| 8-K |
Current report
Other events
|
Apr 18, 2024 | Apr 18, 2024 |
| S-1 | Registration statement | Apr 12, 2024 | — |
| 10-K | Annual report | Mar 7, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 6, 2024 | Mar 6, 2024 |
| 8-K |
Current report
Other events
|
Feb 21, 2024 | Feb 21, 2024 |
| S-8 | Employee stock plan registration | Jan 31, 2024 | — |
| 8-K |
Current report
Material agreement, Other events
|
Dec 11, 2023 | Dec 8, 2023 |
| 424B4 | Prospectus | Dec 11, 2023 | — |
| EFFECT | Filing | Dec 7, 2023 | — |
| CORRESP | Letter to the SEC | Dec 6, 2023 | — |
| CORRESP | Letter to the SEC | Dec 6, 2023 | — |
| S-1/A | Amended registration statement | Dec 5, 2023 | — |
| S-1/A | Amended registration statement | Nov 28, 2023 | — |
| UPLOAD | Letter from the SEC | Nov 21, 2023 | — |
| S-1 | Registration statement | Nov 14, 2023 | — |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Nov 9, 2023 | Nov 7, 2023 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations, Other events
|
Nov 8, 2023 | Nov 8, 2023 |
| 8-K |
Current report
Other events
|
Oct 26, 2023 | Oct 26, 2023 |
| DEF 14A | Proxy statement | Oct 3, 2023 | Nov 7, 2023 |
| 8-K |
Current report
Other events
|
Oct 2, 2023 | Oct 2, 2023 |
| PRE 14A | Preliminary proxy statement | Sep 22, 2023 | Sep 22, 2023 |
| 8-K |
Current report
Listing notice
|
Aug 25, 2023 | Aug 24, 2023 |
| 10-Q | Quarterly report | Aug 10, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2023 | Aug 9, 2023 |
| 424B3 | Prospectus | Jun 15, 2023 | — |
| EFFECT | Filing | Jun 13, 2023 | — |
| CORRESP | Letter to the SEC | Jun 12, 2023 | — |
| 8-K |
Current report
Material agreement
|
May 31, 2023 | May 31, 2023 |
| S-3/A | Amendment no. 1 to form s-3 | May 31, 2023 | — |
| 10-Q | Quarterly report | May 11, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 10, 2023 | May 10, 2023 |
| UPLOAD | Letter from the SEC | May 5, 2023 | — |
| S-3 | Shelf registration | May 2, 2023 | — |
| 8-K |
Current report
Other events
|
Mar 29, 2023 | Mar 28, 2023 |
| 10-K | Annual report | Mar 17, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 15, 2023 | Mar 15, 2023 |
| 424B3 | Prospectus | Jan 20, 2023 | — |
| EFFECT | Filing | Jan 18, 2023 | — |
| POS AM | Post-effective amendment no. 1 to form s-1 | Jan 9, 2023 | — |
| 8-K |
Current report
Listing notice
|
Dec 16, 2022 | Dec 15, 2022 |
| 10-Q | Quarterly report | Nov 10, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2022 | Nov 9, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Aug 11, 2022 | Aug 9, 2022 |
| 10-Q | Quarterly report | Aug 11, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2022 | Aug 10, 2022 |
| DEF 14A | Proxy statement | Jun 22, 2022 | Aug 9, 2022 |
| 8-K |
Current report
Officer or director change
|
Jun 22, 2022 | Jun 16, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
May 24, 2022 | May 23, 2022 |
| EFFECT | Filing | May 17, 2022 | — |
| 424B3 | Prospectus | May 17, 2022 | — |
| CORRESP | Letter to the SEC | May 13, 2022 | — |
| UPLOAD | Letter from the SEC | May 13, 2022 | — |
| S-1 | Registration statement | May 12, 2022 | — |
| 8-K |
Current report
Results of operations
|
May 12, 2022 | May 11, 2022 |
| 10-Q | Quarterly report | May 12, 2022 | Mar 31, 2022 |
| D | Filing | May 3, 2022 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Apr 29, 2022 | Apr 28, 2022 |
| 10-K | Annual report | Mar 24, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 23, 2022 | Feb 22, 2022 |
| S-8 | Employee stock plan registration | Jan 12, 2022 | — |
| 8-K |
Current report
Officer or director change
|
Jan 6, 2022 | Jan 1, 2022 |
| 8-K |
Current report
Officer or director change
|
Nov 19, 2021 | Nov 16, 2021 |
| 10-Q | Quarterly report | Nov 19, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 17, 2021 | Nov 17, 2021 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Nov 4, 2021 | Oct 29, 2021 |
| 424B4 | Prospectus | Oct 21, 2021 | — |
| EFFECT | Filing | Oct 19, 2021 | — |
| CERT | Filing | Oct 19, 2021 | — |
| 8-A12B | Registration of certain classes of securities | Oct 19, 2021 | — |
| CORRESP | Letter to the SEC | Oct 18, 2021 | — |
| CORRESP | Letter to the SEC | Oct 18, 2021 | — |
| S-1/A | Amended registration statement | Oct 15, 2021 | — |
| FWP | Free writing prospectus | Oct 12, 2021 | — |
| S-1/A | Amended registration statement | Sep 30, 2021 | — |
| CORRESP | Letter to the SEC | Sep 29, 2021 | — |
| UPLOAD | Letter from the SEC | Sep 20, 2021 | — |
| S-1 | Registration statement | Sep 3, 2021 | — |
| CORRESP | Letter to the SEC | Sep 2, 2021 | — |
| UPLOAD | Letter from the SEC | Aug 23, 2021 | — |
| DRS | Filing | Jul 28, 2021 | — |
Showing 183 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Services-Computer Programming Services (SIC 7371)
- Listed as
- CYN (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Mountain View, CA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1874097
- Former names
- Cyngn, Inc. (until Nov 4, 2021)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.