Cyngn Inc.

Symbol
CYN on Nasdaq
Entity
Company
Industry
Services Computer Programming Services (Office Of Technology)
Business address
1015 O'brien Drive, 94025 Menlo Park, CA
Phone
650-924-5905
State of incorporation
DE
Fiscal year end
December 31
Category

Emerging growth company
All SEC filings
View on sec.gov
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Cyngn Inc. has filed 214 SEC EDGAR filings since 7/28/2021

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
EFFECT Open Document Open Filing Sep 18, 2025 333-290079
8-K Open Document | Data Open Filing CURRENT REPORT Sep 5, 2025 Sep 5, 2025 001-40932
S-3 Open Document | Data Open Filing REGISTRATION STATEMENT Sep 5, 2025 333-290079
DEFA14A Open Document Open Filing DEFINITIVE ADDITIONAL MATERIALS Aug 19, 2025 001-40932
DEF 14A Open Document Open Filing PROXY STATEMENT Aug 19, 2025 Oct 6, 2025 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Aug 15, 2025 Aug 12, 2025 001-40932
PRE 14A Open Document Open Filing PROXY STATEMENT Aug 8, 2025 Aug 8, 2025 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Aug 7, 2025 Aug 6, 2025 001-40932
10-Q Open Document | Data Open Filing QUARTERLY REPORT Aug 7, 2025 Jun 30, 2025 001-40932
SCHEDULE 13G Open Document Open Filing Jul 31, 2025 005-93348
8-K Open Document | Data Open Filing CURRENT REPORT Jun 30, 2025 Jun 27, 2025 001-40932
424B5 Open Document Open Filing PROSPECTUS SUPPLEMENT Jun 30, 2025 333-271567
8-K Open Document | Data Open Filing CURRENT REPORT Jun 27, 2025 Jun 26, 2025 001-40932
424B5 Open Document Open Filing PROSPECTUS SUPPLEMENT Jun 27, 2025 333-271567
8-K Open Document | Data Open Filing CURRENT REPORT Jun 6, 2025 Jun 6, 2025 001-40932
3 Open Document Open Filing May 15, 2025 May 6, 2025
3 Open Document Open Filing May 15, 2025 May 6, 2025
SCHEDULE 13G/A Open Document Open Filing May 15, 2025 005-93348
SCHEDULE 13G/A Open Document Open Filing May 14, 2025 005-93348
10-Q Open Document | Data Open Filing QUARTERLY REPORT May 8, 2025 Mar 31, 2025 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT May 8, 2025 May 7, 2025 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Apr 25, 2025 Apr 23, 2025 001-40932
S-8 Open Document Open Filing REGISTRATION STATEMENT Mar 21, 2025 333-286030
10-K Open Document | Data Open Filing ANNUAL REPORT Mar 6, 2025 Dec 31, 2024 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Mar 5, 2025 Mar 5, 2025 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Feb 28, 2025 Feb 24, 2025 001-40932
SCHEDULE 13G/A Open Document Open Filing Feb 14, 2025 005-93348
SCHEDULE 13G/A Open Document Open Filing Feb 14, 2025 005-93348
SCHEDULE 13G Open Document Open Filing Feb 14, 2025 005-93348
SCHEDULE 13G/A Open Document Open Filing Feb 13, 2025 005-93348
8-K Open Document | Data Open Filing CURRENT REPORT Feb 12, 2025 Feb 7, 2025 001-40932
SCHEDULE 13G/A Open Document Open Filing Feb 7, 2025 005-93348
8-K Open Document | Data Open Filing FORM 8-K Feb 6, 2025 Feb 6, 2025 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Jan 30, 2025 Jan 30, 2025 001-40932
SCHEDULE 13G Open Document Open Filing Jan 8, 2025 005-93348
SCHEDULE 13G/A Open Document Open Filing Jan 8, 2025 005-93348
SCHEDULE 13G Open Document Open Filing Jan 7, 2025 005-93348
DEF 14A Open Document Open Filing PROXY STATEMENT Jan 6, 2025 Jan 30, 2025 001-40932
SCHEDULE 13G/A Open Document Open Filing Jan 3, 2025 005-93348
8-K Open Document | Data Open Filing CURRENT REPORT Dec 31, 2024 Dec 30, 2024 001-40932
SCHEDULE 13G Open Document Open Filing Dec 31, 2024 005-93348
424B5 Open Document Open Filing PROSPECTUS SUPPLEMENT Dec 31, 2024 333-271567
SCHEDULE 13G Open Document Open Filing Dec 31, 2024 005-93348
PRE 14A Open Document Open Filing PRELIMINARY PROXY STATEMENT Dec 23, 2024 Dec 23, 2024 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Dec 23, 2024 Dec 20, 2024 001-40932
424B4 Open Document Open Filing PROSPECTUS Dec 23, 2024 333-283514
EFFECT Open Document Open Filing Dec 19, 2024 333-283514
CORRESP Open Document Open Filing Dec 18, 2024
CORRESP Open Document Open Filing Dec 18, 2024
S-1/A Open Document Open Filing AMENDMENT NO. 1 TO FORM S-1 Dec 18, 2024 333-283514
EFFECT Open Document Open Filing Dec 6, 2024 333-283438
424B3 Open Document Open Filing PROSPECTUS Dec 6, 2024 333-283438
UPLOAD Open Document Open Filing Dec 5, 2024 333-283514
CORRESP Open Document Open Filing Dec 5, 2024
UPLOAD Open Document Open Filing Dec 4, 2024 333-283438
S-1 Open Document Open Filing REGISTRATION STATEMENT Nov 27, 2024 333-283514
S-3 Open Document Open Filing REGISTRATION STATEMENT Nov 25, 2024 333-283438
D Open Document Open Filing Nov 25, 2024 021-530320
SC 13G/A Open Document Open Filing SC 13G/A Nov 13, 2024 005-93348
8-K Open Document | Data Open Filing CURRENT REPORT Nov 12, 2024 Nov 12, 2024 001-40932
10-Q Open Document | Data Open Filing QUARTERLY REPORT Nov 7, 2024 Sep 30, 2024 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Nov 7, 2024 Nov 6, 2024 001-40932
1-A-W Open Document Open Filing WITHDRAWAL OF OFFERING STATEMENT Oct 30, 2024 024-12486
1-A/A Open Document Open Filing Oct 17, 2024 024-12486
1-A/A Open Document Open Filing Sep 30, 2024 024-12486
1-A Open Document Open Filing Aug 15, 2024 024-12486
8-K Open Document | Data Open Filing CURRENT REPORT Aug 9, 2024 Aug 7, 2024 001-40932
10-Q Open Document | Data Open Filing QUARTERLY REPORT Aug 8, 2024 Jun 30, 2024 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Jul 9, 2024 Jul 3, 2024 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Jun 25, 2024 Jun 21, 2024 001-40932
DEFA14A Open Document Open Filing SOLICITING MATERIAL May 31, 2024 001-40932
DEF 14A Open Document Open Filing PROXY STATEMENT May 21, 2024 Jun 25, 2024 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT May 17, 2024 May 15, 2024 001-40932
PRE 14A Open Document Open Filing PRELIMINARY PROXY STATEMENT May 10, 2024 May 10, 2024 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT May 10, 2024 May 7, 2024 001-40932
10-Q Open Document | Data Open Filing QUARTERLY REPORT May 9, 2024 Mar 31, 2024 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT May 9, 2024 May 8, 2024 001-40932
4 Open Document Open Filing May 3, 2024 May 1, 2024
4 Open Document Open Filing May 3, 2024 May 1, 2024
4 Open Document Open Filing May 3, 2024 May 1, 2024
8-K Open Document | Data Open Filing CURRENT REPORT Apr 24, 2024 Apr 23, 2024 001-40932
424B4 Open Document Open Filing PROSPECTUS Apr 24, 2024 333-278671
EFFECT Open Document Open Filing Apr 23, 2024 333-278671
CORRESP Open Document Open Filing Apr 23, 2024
CORRESP Open Document Open Filing Apr 23, 2024
S-1/A Open Document Open Filing AMENDMENT NO.1 TO FORM S-1 Apr 23, 2024 333-278671
UPLOAD Open Document Open Filing Apr 18, 2024 333-278671
8-K Open Document | Data Open Filing CURRENT REPORT Apr 18, 2024 Apr 18, 2024 001-40932
S-1 Open Document Open Filing REGISTRATION STATEMENT Apr 12, 2024 333-278671
10-K Open Document | Data Open Filing ANNUAL REPORT Mar 7, 2024 Dec 31, 2023 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Mar 6, 2024 Mar 6, 2024 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Feb 21, 2024 Feb 21, 2024 001-40932
SC 13G/A Open Document Open Filing SC 13G/A Feb 14, 2024 005-93348
SC 13G/A Open Document Open Filing SC 13G/A Feb 13, 2024 005-93348
S-8 Open Document Open Filing REGISTRATION STATEMENT Jan 31, 2024 333-276792
SC 13G/A Open Document Open Filing CYNGN INC. Jan 23, 2024 005-93348
SC 13G Open Document Open Filing CYNGN INC. Jan 10, 2024 005-93348
SC 13G Open Document Open Filing CYN 13G 1.04.24 Jan 4, 2024 005-93348
8-K Open Document | Data Open Filing CURRENT REPORT Dec 11, 2023 Dec 8, 2023 001-40932
424B4 Open Document Open Filing PROSPECTUS Dec 11, 2023 333-275530
EFFECT Open Document Open Filing Dec 7, 2023 333-275530
CORRESP Open Document Open Filing Dec 6, 2023
CORRESP Open Document Open Filing Dec 6, 2023
S-1/A Open Document Open Filing AMENDMENT NO. 2 TO FORM S-1 Dec 5, 2023 333-275530
S-1/A Open Document Open Filing AMENDMENT NO. 1 TO FORM S-1 Nov 28, 2023 333-275530
UPLOAD Open Document Open Filing Nov 21, 2023
S-1 Open Document Open Filing REGISTRATION STATEMENT Nov 14, 2023 333-275530
4 Open Document Open Filing Nov 9, 2023 Nov 7, 2023
4 Open Document Open Filing Nov 9, 2023 Nov 7, 2023
4 Open Document Open Filing Nov 9, 2023 Nov 7, 2023
8-K Open Document | Data Open Filing FORM 8-K Nov 9, 2023 Nov 7, 2023 001-40932
10-Q Open Document | Data Open Filing QUARTERLY REPORT Nov 9, 2023 Sep 30, 2023 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Nov 8, 2023 Nov 8, 2023 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Oct 26, 2023 Oct 26, 2023 001-40932
DEF 14A Open Document Open Filing PROXY STATEMENT Oct 3, 2023 Nov 7, 2023 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Oct 2, 2023 Oct 2, 2023 001-40932
PRE 14A Open Document Open Filing PROXY STATEMENT Sep 22, 2023 Sep 22, 2023 001-40932
8-K Open Document | Data Open Filing FORM 8-K Aug 25, 2023 Aug 24, 2023 001-40932
10-Q Open Document | Data Open Filing QUARTERLY REPORT Aug 10, 2023 Jun 30, 2023 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Aug 9, 2023 Aug 9, 2023 001-40932
424B3 Open Document Open Filing PROSPECTUS Jun 15, 2023 333-271567
EFFECT Open Document Open Filing Jun 13, 2023 333-271567
CORRESP Open Document Open Filing Jun 12, 2023
4 Open Document Open Filing May 31, 2023 May 27, 2023
4 Open Document Open Filing May 31, 2023 May 27, 2023
4 Open Document Open Filing May 31, 2023 May 27, 2023
8-K Open Document | Data Open Filing CURRENT REPORT May 31, 2023 May 31, 2023 001-40932
S-3/A Open Document Open Filing AMENDMENT NO. 1 TO FORM S-3 May 31, 2023 333-271567
10-Q Open Document | Data Open Filing QUARTERLY REPORT May 11, 2023 Mar 31, 2023 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT May 10, 2023 May 10, 2023 001-40932
UPLOAD Open Document Open Filing May 5, 2023
S-3 Open Document Open Filing REGISTRATION STATEMENT May 2, 2023 333-271567
4 Open Document Open Filing Apr 4, 2023 Mar 31, 2023
8-K Open Document | Data Open Filing CURRENT REPORT Mar 29, 2023 Mar 28, 2023 001-40932
10-K Open Document | Data Open Filing ANNUAL REPORT Mar 17, 2023 Dec 31, 2022 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Mar 15, 2023 Mar 15, 2023 001-40932
424B3 Open Document Open Filing PROSPECTUS Jan 20, 2023 333-264887
EFFECT Open Document Open Filing Jan 18, 2023 333-264887
POS AM Open Document Open Filing POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-1 Jan 9, 2023 333-264887
8-K Open Document | Data Open Filing FORM 8-K Dec 16, 2022 Dec 15, 2022 001-40932
4 Open Document Open Filing Nov 10, 2022 Nov 8, 2022
4 Open Document Open Filing Nov 10, 2022 Nov 8, 2022
4 Open Document Open Filing Nov 10, 2022 Nov 8, 2022
10-Q Open Document | Data Open Filing QUARTERLY REPORT Nov 10, 2022 Sep 30, 2022 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Nov 9, 2022 Nov 9, 2022 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Aug 11, 2022 Aug 9, 2022 001-40932
10-Q Open Document | Data Open Filing QUARTERLY REPORT Aug 11, 2022 Jun 30, 2022 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Aug 10, 2022 Aug 10, 2022 001-40932
4 Open Document Open Filing Aug 1, 2022 Jul 27, 2022
4 Open Document Open Filing Jul 20, 2022 Jul 13, 2022
4 Open Document Open Filing Jul 20, 2022 Jul 13, 2022
4 Open Document Open Filing Jul 20, 2022 Jul 13, 2022
DEF 14A Open Document Open Filing DEFINITIVE PROXY STATEMENTS Jun 22, 2022 Aug 9, 2022 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Jun 22, 2022 Jun 16, 2022 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT May 24, 2022 May 23, 2022 001-40932
EFFECT Open Document Open Filing May 17, 2022 333-264887
424B3 Open Document Open Filing PROSPECTUS May 17, 2022 333-264887
CORRESP Open Document Open Filing May 13, 2022
UPLOAD Open Document Open Filing May 13, 2022
S-1 Open Document | Data Open Filing REGISTRATION STATEMENT May 12, 2022 333-264887
8-K Open Document | Data Open Filing CURRENT REPORT May 12, 2022 May 11, 2022 001-40932
10-Q Open Document | Data Open Filing QUARTERLY REPORT May 12, 2022 Mar 31, 2022 001-40932
4 Open Document Open Filing May 4, 2022 May 2, 2022
4 Open Document Open Filing May 3, 2022 May 2, 2022
4 Open Document Open Filing May 3, 2022 May 2, 2022
D Open Document Open Filing May 3, 2022 021-444296
8-K Open Document | Data Open Filing CURRENT REPORT Apr 29, 2022 Apr 28, 2022 001-40932
10-K Open Document | Data Open Filing ANNUAL REPORT Mar 24, 2022 Dec 31, 2021 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Feb 23, 2022 Feb 22, 2022 001-40932
SC 13G Open Document Open Filing SC 13G Feb 14, 2022 005-93348
SC 13G Open Document Open Filing SC 13G Feb 14, 2022 005-93348
SC 13G Open Document Open Filing SC 13G Feb 11, 2022 005-93348
SC 13D Open Document Open Filing SCHEDULE 13D Feb 8, 2022 005-93348
4 Open Document Open Filing Feb 3, 2022 Feb 2, 2022
S-8 Open Document Open Filing REGISTRATION STATEMENT Jan 12, 2022 333-262130
8-K Open Document | Data Open Filing CURRENT REPORT Jan 6, 2022 Jan 1, 2022 001-40932
8-K Open Document | Data Open Filing CURRENT REPORT Nov 19, 2021 Nov 16, 2021 001-40932
10-Q Open Document | Data Open Filing QUARTERLY REPORT Nov 19, 2021 Sep 30, 2021 001-40932
4 Open Document Open Filing Nov 17, 2021 Nov 16, 2021
8-K Open Document Open Filing CURRENT REPORT Nov 17, 2021 Nov 17, 2021 001-40932
4 Open Document Open Filing Nov 17, 2021 Nov 16, 2021
4 Open Document Open Filing Nov 17, 2021 Nov 16, 2021
8-K Open Document Open Filing CURRENT REPORT Nov 4, 2021 Oct 29, 2021 001-40932
4 Open Document Open Filing FORM 4 SUBMISSION Oct 26, 2021 Oct 22, 2021
3 Open Document Open Filing Oct 25, 2021 Oct 19, 2021
4 Open Document Open Filing Oct 22, 2021 Oct 22, 2021
4 Open Document Open Filing Oct 22, 2021 Oct 22, 2021
4 Open Document Open Filing OWNERSHIP DOCUMENT Oct 22, 2021 Oct 22, 2021
4 Open Document Open Filing OWNERSHIP DOCUMENT Oct 22, 2021 Oct 22, 2021
424B4 Open Document Open Filing PROSPECTUS Oct 21, 2021 333-259278
EFFECT Open Document Open Filing Oct 19, 2021 333-259278
3 Open Document Open Filing FORM 3 SUBMISSION Oct 19, 2021 Oct 19, 2021
3 Open Document Open Filing OWNERSHIP DOCUMENT Oct 19, 2021 Oct 19, 2021
3 Open Document Open Filing Oct 19, 2021 Oct 19, 2021
3 Open Document Open Filing Oct 19, 2021 Oct 19, 2021
3 Open Document Open Filing Oct 19, 2021 Oct 19, 2021
3 Open Document Open Filing Oct 19, 2021 Oct 19, 2021
3 Open Document Open Filing Oct 19, 2021 Oct 19, 2021
3 Open Document Open Filing Oct 19, 2021 Oct 19, 2021
3 Open Document Open Filing Oct 19, 2021 Oct 19, 2021
3 Open Document Open Filing Oct 19, 2021 Oct 19, 2021
CERT Open Document Open Filing Oct 19, 2021 001-40932
8-A12B Open Document Open Filing REGISTRATION OF CERTAIN CLASSES OF SECURITIES Oct 19, 2021 001-40932
CORRESP Open Document Open Filing Oct 18, 2021
CORRESP Open Document Open Filing Oct 18, 2021
S-1/A Open Document Open Filing REGISTRATION STATEMENT Oct 15, 2021 333-259278
FWP Open Document Open Filing FREE WRITING PROSPECTUS Oct 12, 2021 333-259278
S-1/A Open Document Open Filing REGISTRATION STATEMENT Sep 30, 2021 333-259278
CORRESP Open Document Open Filing Sep 29, 2021
UPLOAD Open Document Open Filing Sep 20, 2021
S-1 Open Document Open Filing REGISTRATION STATEMENT Sep 3, 2021 333-259278
CORRESP Open Document Open Filing Sep 2, 2021
UPLOAD Open Document Open Filing Aug 23, 2021
DRS Open Document Open Filing Jul 28, 2021 377-05263