No insider purchase over the last 90 days. The latest, by Manko Joseph M. Jr., was filed 15 Aug 2024.
Every trade that managers of ONE Stop Systems, Inc. disclose to SEC (Form 4) is tracked on this page. The company sits in the Technology sector and is based in Escondido, United States. It was founded in 1998. The last twelve months, up to 22 October 2026, brought 22 filings signed by 4 insiders.
No insider bought on the market over the period, while 1 insider filed 1 sale totalling €121k. Biggest ticket of the year: €121k, sold by Bassett David George and made public on 26 May 2026 (0.047% of market cap).
With 22 filings in twelve months, the company is quieter than the median of 24 filings across the 3,171 companies we follow on the same exchange. The full history, which starts in 2018, counts 34 purchases against 61 sales. The 10-K for the year ended 31 December 2025 shows 32.2 m USD of revenue and 5.1 m USD of net income.
Typically, a trade is published a median of 20 days after it takes place. Section 16 rules allow two business days to file each Form 4. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification.
This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Transparent value + quality ranking, distinct from the insider signal.
FY ended December 2025 · cache
25 of 388 declarations
One Stop Systems, Inc. (OSS) is a U.S.-based technology company listed on the Nasdaq in the United States. For French, Belgian, and Swiss investors, the key investment case is its niche positioning: OSS designs and sells rugged high-performance computing systems for edge environments where low latency, durability, and reliability matter. The company focuses on artificial intelligence (AI), machine learning, autonomy, sensor fusion, and real-time processing. Its headquarters are in Escondido, California, north of San Diego. ([s3.amazonaws.com](https://s3.amazonaws.com/b2icontent.irpass.cc/2595/rl163325.pdf))
OSS has evolved through a deliberate specialization strategy. Over time, the company has concentrated on rugged edge compute and PCIe-based architectures. A meaningful milestone was the 2018 acquisition of Concept Development, Inc. (CDI), which was integrated into OSS’s Escondido headquarters operation and expanded the company’s design, test, and manufacturing capabilities in military and commercial aerospace applications. OSS also maintains an international footprint through its German subsidiary, OSS GmbH, while keeping its strategic center of gravity in the United States. ([onestopsystems.com](https://onestopsystems.com/pages/cdi))
Operationally, OSS’s main business lines include rugged servers, GPU compute accelerators, high-density flash storage arrays, PCIe switch fabrics, adapters, and proprietary software for system management and data-flow acceleration. The company targets defense, commercial aerospace, healthcare, industrial, and autonomous-system customers. OSS positions itself as an “enterprise class” edge-computing provider, combining specialized hardware with embedded software and integration expertise. ([s3.amazonaws.com](https://s3.amazonaws.com/b2icontent.irpass.cc/2595/rl163325.pdf))
From a competitive standpoint, OSS operates in a specialized segment rather than competing head-on with broad-line hardware vendors. Its differentiation comes from ruggedization, customization, and close alignment with defense and mission-critical programs. That niche focus is reinforced by quality and compliance credentials, including ISO 9001:2015, AS9100D, and CMMC 2.0 Level 2 compliance, which are especially relevant for U.S. government and contractor customers. ([onestopsystems.com](https://onestopsystems.com/pages/company))
Recent developments support a turnaround narrative. In its March 18, 2026 fourth-quarter release, OSS reported Q4 2025 revenue up 70.2% year over year, record quarterly gross margin of 58.5%, and quarterly net income from continuing operations. The company also completed the sale of Bressner Technology GmbH on December 30, 2025, helping streamline the portfolio and sharpen focus on higher-margin core opportunities in rugged enterprise compute. In its April 15, 2026 shareholder letter, management highlighted an approximate 1.2x book-to-bill ratio and annual 2025 revenue growth of more than 30%. ([s3.amazonaws.com](https://s3.amazonaws.com/b2icontent.irpass.cc/2595/rl163325.pdf))
Headquarters: Escondido, United States · Founded: 1998
Source: Wikidata (CC0).
| Fiscal year end | Revenue | Net income | Diluted EPS | Filing |
|---|---|---|---|---|
| Dec 2025 | 32.2 m USD | 5.1 m USD | 0.22 USD | 10-K |
| Dec 2024 | 24.6 m USD | -13.6 m USD | -0.65 USD | 10-K |
| Dec 2023 | 60.9 m USD | -6.7 m USD | -0.32 USD | 10-K |
| Dec 2022 | 72.4 m USD | -2.2 m USD | -0.11 USD | 10-K |
| Dec 2021 | 62.0 m USD | 2.3 m USD | 0.12 USD | 10-K |
Amounts in USD, as filed (forms 10-K, 20-F or 40-F). Source: SEC EDGAR.