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.

Cyngn Inc. SEC filings
Form Description Filed Period
SCHEDULE 13G Ownership over 5% (passive) Apr 22, 2026 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Jan 7, 2026 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Oct 21, 2025 —
SCHEDULE 13G Ownership over 5% (passive) Jul 31, 2025 —
3 Initial insider ownership May 15, 2025 May 6, 2025
3 Initial insider ownership May 15, 2025 May 6, 2025
SCHEDULE 13G/A Amended ownership over 5% (passive) May 15, 2025 —
SCHEDULE 13G/A Amended ownership over 5% (passive) May 14, 2025 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Feb 14, 2025 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Feb 14, 2025 —
SCHEDULE 13G Ownership over 5% (passive) Feb 14, 2025 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Feb 13, 2025 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Feb 7, 2025 —
SCHEDULE 13G Ownership over 5% (passive) Jan 8, 2025 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Jan 8, 2025 —
SCHEDULE 13G Ownership over 5% (passive) Jan 7, 2025 —
SCHEDULE 13G/A Amended ownership over 5% (passive) Jan 3, 2025 —
SCHEDULE 13G Ownership over 5% (passive) Dec 31, 2024 —
SCHEDULE 13G Ownership over 5% (passive) Dec 31, 2024 —
SC 13G/A Amended ownership over 5% (passive) Nov 13, 2024 —
4 Insider transaction May 3, 2024 May 1, 2024
4 Insider transaction May 3, 2024 May 1, 2024
4 Insider transaction May 3, 2024 May 1, 2024
SC 13G/A Amended ownership over 5% (passive) Feb 14, 2024 —
SC 13G/A Amended ownership over 5% (passive) Feb 13, 2024 —
SC 13G/A Amended ownership over 5% (passive) Jan 23, 2024 —
SC 13G Ownership over 5% (passive) Jan 10, 2024 —
SC 13G Ownership over 5% (passive) Jan 4, 2024 —
4 Insider transaction Nov 9, 2023 Nov 7, 2023
4 Insider transaction Nov 9, 2023 Nov 7, 2023
4 Insider transaction Nov 9, 2023 Nov 7, 2023
4 Insider transaction May 31, 2023 May 27, 2023
4 Insider transaction May 31, 2023 May 27, 2023
4 Insider transaction May 31, 2023 May 27, 2023
4 Insider transaction Apr 4, 2023 Mar 31, 2023
4 Insider transaction Nov 10, 2022 Nov 8, 2022
4 Insider transaction Nov 10, 2022 Nov 8, 2022
4 Insider transaction Nov 10, 2022 Nov 8, 2022
4 Insider transaction Aug 1, 2022 Jul 27, 2022
4 Insider transaction Jul 20, 2022 Jul 13, 2022
4 Insider transaction Jul 20, 2022 Jul 13, 2022
4 Insider transaction Jul 20, 2022 Jul 13, 2022
4 Insider transaction May 4, 2022 May 2, 2022
4 Insider transaction May 3, 2022 May 2, 2022
4 Insider transaction May 3, 2022 May 2, 2022
SC 13G Ownership over 5% (passive) Feb 14, 2022 —
SC 13G Ownership over 5% (passive) Feb 14, 2022 —
SC 13G Ownership over 5% (passive) Feb 11, 2022 —
SC 13D Ownership over 5% (active) Feb 8, 2022 —
4 Insider transaction Feb 3, 2022 Feb 2, 2022
4 Insider transaction Nov 17, 2021 Nov 16, 2021
4 Insider transaction Nov 17, 2021 Nov 16, 2021
4 Insider transaction Nov 17, 2021 Nov 16, 2021
4 Insider transaction Oct 26, 2021 Oct 22, 2021
3 Initial insider ownership Oct 25, 2021 Oct 19, 2021
4 Insider transaction Oct 22, 2021 Oct 22, 2021
4 Insider transaction Oct 22, 2021 Oct 22, 2021
4 Insider transaction Oct 22, 2021 Oct 22, 2021
4 Insider transaction Oct 22, 2021 Oct 22, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021
3 Initial insider ownership Oct 19, 2021 Oct 19, 2021

Showing 69 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.

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.