One Stop Systems, Inc. SEC filings OSS
One Stop Systems, Inc. has 527 filings in SEC EDGAR's recent list, going back to Mar 19, 2007. Its latest annual report, Form 10-K, was filed on Mar 18, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 28, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (material agreement). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Material agreement
|
Oct 28, 2026 | Oct 28, 2026 |
| 424B5 | Prospectus supplement | Oct 28, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 28, 2026 | Oct 28, 2026 |
| 10-Q | Quarterly report | Oct 28, 2026 | Sep 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 9, 2026 | — |
| 4 | Insider transaction | Sep 4, 2026 | Aug 7, 2026 |
| 4 | Insider transaction | Sep 4, 2026 | Aug 7, 2026 |
| EFFECT | Filing | Sep 2, 2026 | — |
| CORRESP | Letter to the SEC | Aug 31, 2026 | — |
| S-3/A | Filing | Aug 28, 2026 | — |
| UPLOAD | Letter from the SEC | Aug 26, 2026 | — |
| S-3 | Shelf registration | Aug 24, 2026 | — |
| 8-K |
Current report
Material agreement, Officer or director change
|
Aug 5, 2026 | Jul 31, 2026 |
| 10-Q | Quarterly report | Aug 5, 2026 | Jun 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 31, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 29, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 24, 2026 | — |
| 4 | Insider transaction | Jun 12, 2026 | Jun 5, 2026 |
| 4 | Insider transaction | May 28, 2026 | May 11, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 21, 2025 |
| 4 | Insider transaction | May 26, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 20, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 20, 2026 |
| 144 | Notice of proposed sale | May 26, 2026 | — |
| 144 | Notice of proposed sale | May 26, 2026 | — |
| 144 | Notice of proposed sale | May 26, 2026 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 19, 2026 | May 13, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 13, 2026 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 8, 2026 | May 7, 2026 |
| 10-Q | Quarterly report | May 6, 2026 | Mar 31, 2026 |
| DEF 14A | Proxy statement | Apr 15, 2026 | Apr 14, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 15, 2026 | Apr 15, 2026 |
| 4/A | Filing | Mar 27, 2026 | May 21, 2025 |
| 10-K | Annual report | Mar 18, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 7, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 7, 2026 |
| 4 | Insider transaction | Mar 2, 2026 | Feb 7, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| 4 | Insider transaction | Feb 11, 2026 | Feb 7, 2026 |
| 4 | Insider transaction | Feb 11, 2026 | Feb 7, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 7, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Regulation FD disclosure
|
Jan 6, 2026 | Jan 6, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 18, 2025 | — |
| 10-Q | Quarterly report | Nov 5, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Oct 1, 2025 | Oct 1, 2025 |
| 424B5 | Prospectus supplement | Oct 1, 2025 | — |
| 4 | Insider transaction | Sep 2, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Aug 25, 2025 | Aug 20, 2025 |
| 10-Q | Quarterly report | Aug 7, 2025 | Jun 30, 2025 |
| 3 | Initial insider ownership | Jul 18, 2025 | May 14, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 6, 2025 | — |
| 4 | Insider transaction | May 28, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 27, 2025 | May 21, 2025 |
| 4 | Insider transaction | May 23, 2025 | May 21, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 20, 2025 | May 20, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 13, 2025 | — |
| DEFA14A | Additional proxy material | May 9, 2025 | — |
| 8-K |
Current report
Officer or director change
|
May 9, 2025 | May 8, 2025 |
| 10-Q | Quarterly report | May 7, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 21, 2025 | Apr 21, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 18, 2025 | — |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Apr 15, 2025 | Apr 15, 2025 |
| DEF 14A | Proxy statement | Apr 15, 2025 | Apr 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 21, 2025 | — |
| 10-K | Annual report | Mar 19, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 19, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Mar 13, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Mar 5, 2025 | Feb 7, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 7, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 14, 2025 | Jan 14, 2025 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 11, 2024 |
| 4 | Insider transaction | Nov 12, 2024 | Nov 11, 2024 |
| 3 | Initial insider ownership | Nov 12, 2024 | Nov 11, 2024 |
| 10-Q | Quarterly report | Nov 6, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change, Regulation FD disclosure
|
Nov 6, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Sep 25, 2024 | Sep 23, 2024 |
| 4 | Insider transaction | Sep 25, 2024 | Sep 23, 2024 |
| 4 | Insider transaction | Aug 21, 2024 | Aug 20, 2024 |
| 4 | Insider transaction | Aug 21, 2024 | Aug 20, 2024 |
| 4 | Insider transaction | Aug 15, 2024 | Aug 13, 2024 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Aug 13, 2024 | Aug 9, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 8, 2024 | Aug 8, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| S-8 | Employee stock plan registration | Jul 24, 2024 | — |
| 4 | Insider transaction | Jul 11, 2024 | Jul 9, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jul 3, 2024 | Jul 1, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 4 | Insider transaction | May 28, 2024 | May 23, 2024 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 20, 2024 | May 15, 2024 |
| 8-K |
Current report
Acquisition or sale of assets, Regulation FD disclosure
|
May 9, 2024 | May 9, 2024 |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 15, 2024 | Apr 15, 2024 |
| DEF 14A | Proxy statement | Apr 15, 2024 | May 15, 2024 |
| ARS | Annual report to shareholders | Apr 15, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Apr 3, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Apr 3, 2024 | Apr 1, 2024 |
| 4 | Insider transaction | Mar 27, 2024 | Mar 25, 2024 |
| 4 | Insider transaction | Mar 27, 2024 | Mar 25, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 21, 2024 | Mar 21, 2024 |
| 10-K | Annual report | Mar 21, 2024 | Dec 31, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| 5 | Annual insider ownership | Feb 13, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Feb 7, 2024 | Feb 5, 2024 |
| 4 | Insider transaction | Feb 7, 2024 | Feb 5, 2024 |
| 4 | Insider transaction | Jan 30, 2024 | Jan 29, 2024 |
| 4 | Insider transaction | Jan 24, 2024 | Jan 22, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 4, 2024 | — |
| 3 | Initial insider ownership | Dec 1, 2023 | Nov 27, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 30, 2023 | Nov 27, 2023 |
| 4 | Insider transaction | Nov 21, 2023 | Nov 21, 2023 |
| 4 | Insider transaction | Nov 21, 2023 | Nov 21, 2023 |
| 4 | Insider transaction | Nov 20, 2023 | Nov 17, 2023 |
| 4 | Insider transaction | Nov 20, 2023 | Nov 17, 2023 |
| 3 | Initial insider ownership | Nov 20, 2023 | Nov 10, 2023 |
| 8-K |
Current report
Results of operations, Officer or director change, Regulation FD disclosure
|
Nov 9, 2023 | Nov 6, 2023 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| SC 13D | Ownership over 5% (active) | Nov 3, 2023 | — |
| 3 | Initial insider ownership | Oct 10, 2023 | Sep 30, 2023 |
| EFFECT | Filing | Aug 25, 2023 | — |
| CORRESP | Letter to the SEC | Aug 23, 2023 | — |
| UPLOAD | Letter from the SEC | Aug 23, 2023 | — |
| 4 | Insider transaction | Aug 22, 2023 | Aug 18, 2023 |
| 4 | Insider transaction | Aug 18, 2023 | Aug 16, 2023 |
| 4 | Insider transaction | Aug 18, 2023 | Aug 16, 2023 |
| 4 | Insider transaction | Aug 18, 2023 | Aug 16, 2023 |
| S-8 | Employee stock plan registration | Aug 18, 2023 | — |
| S-3 | Shelf registration | Aug 18, 2023 | — |
| 4 | Insider transaction | Aug 15, 2023 | Aug 14, 2023 |
| 4 | Insider transaction | Aug 15, 2023 | Aug 15, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 10, 2023 | Aug 10, 2023 |
| 10-Q | Quarterly report | Aug 10, 2023 | Jun 30, 2023 |
| 4 | Insider transaction | Aug 1, 2023 | Jul 31, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 20, 2023 | Jul 20, 2023 |
| 4 | Insider transaction | Jun 28, 2023 | Jun 26, 2023 |
| 4 | Insider transaction | Jun 27, 2023 | Jun 23, 2023 |
| 4 | Insider transaction | Jun 21, 2023 | Jun 16, 2023 |
| 4/A | Form 4/a submission | Jun 21, 2023 | Feb 8, 2023 |
| 4 | Insider transaction | Jun 21, 2023 | Jun 16, 2023 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Jun 7, 2023 | Jun 1, 2023 |
| 4 | Insider transaction | Jun 6, 2023 | Jun 5, 2023 |
| 3 | Initial insider ownership | Jun 6, 2023 | Jun 5, 2023 |
| 4 | Insider transaction | May 24, 2023 | May 22, 2023 |
| 4 | Insider transaction | May 24, 2023 | May 22, 2023 |
| 8-K |
Current report
Material agreement, Officer or director change, Regulation FD disclosure
|
May 22, 2023 | May 16, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 18, 2023 | May 18, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 11, 2023 | May 11, 2023 |
| 10-Q | Quarterly report | May 11, 2023 | Mar 31, 2023 |
| 4 | Insider transaction | Apr 25, 2023 | Apr 21, 2013 |
| DEF 14A | Proxy statement | Apr 18, 2023 | May 17, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 18, 2023 | Apr 18, 2023 |
| 8-K |
Current report
Material agreement, Officer or director change, Bylaw or fiscal year change
|
Apr 7, 2023 | Apr 3, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 23, 2023 | Mar 23, 2023 |
| 10-K | Annual report | Mar 23, 2023 | Dec 31, 2022 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 16, 2023 |
| 4 | Insider transaction | Mar 20, 2023 | Mar 16, 2023 |
| 4 | Insider transaction | Feb 14, 2023 | Feb 10, 2023 |
| 4 | Insider transaction | Feb 14, 2023 | Feb 10, 2023 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2023 | — |
| 4 | Insider transaction | Feb 10, 2023 | Feb 8, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 8, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 8, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 9, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 7, 2023 | Feb 3, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2023 | — |
| 4 | Insider transaction | Jan 6, 2023 | Jan 4, 2023 |
| 4 | Insider transaction | Dec 20, 2022 | Dec 20, 2022 |
| 4 | Insider transaction | Nov 23, 2022 | Nov 22, 2022 |
| 4 | Insider transaction | Nov 23, 2022 | Nov 22, 2022 |
| 4 | Insider transaction | Nov 14, 2022 | Nov 9, 2022 |
| 4 | Insider transaction | Nov 14, 2022 | Nov 9, 2022 |
| 10-Q | Quarterly report | Nov 10, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 10, 2022 | Nov 10, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 24, 2022 | Oct 24, 2022 |
| 4 | Insider transaction | Oct 6, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Oct 6, 2022 | Oct 4, 2022 |
| 4 | Insider transaction | Aug 26, 2022 | Aug 25, 2022 |
| 4 | Insider transaction | Aug 17, 2022 | Aug 15, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 11, 2022 | Aug 11, 2022 |
| 10-Q | Quarterly report | Aug 11, 2022 | Jun 30, 2022 |
| 4 | Insider transaction | Aug 1, 2022 | Jul 28, 2022 |
| 4 | Insider transaction | Jul 27, 2022 | Jul 22, 2022 |
| 4 | Insider transaction | Jul 22, 2022 | Jul 20, 2021 |
| 4 | Insider transaction | Jun 30, 2022 | Jun 29, 2022 |
| 4 | Insider transaction | Jun 3, 2022 | Mar 17, 2022 |
| 4 | Insider transaction | May 25, 2022 | May 23, 2022 |
| 4 | Insider transaction | May 25, 2022 | May 23, 2022 |
| 8-K |
Current report
Shareholder vote results
|
May 19, 2022 | May 18, 2022 |
Showing 200 filings, the most recent 200. 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
- Electronic Computers (SIC 3571)
- Listed as
- OSS (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Escondido, CA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1394056
- Former names
- ONE STOP SYSTEMS INC (until Jul 2, 2018)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.