One Stop Systems, Inc.
OSS- Exchange
- Nasdaq
- Industry
- Electronic Computers
- SEC CIK
- 0001394056
No open-market purchases or sales by One Stop Systems, Inc. insiders were filed in the last 90 days; 108 institutions reported holding it in 13F filings for Q2 2026, worth $193.4M in total; no superinvestor holds it.
Q4 2025 vs. Q3 2025
How the institutions holding One Stop Systems, Inc. changed between Q3 2025 and Q4 2025.
All holders in Q4 2025All holders in Q3 2025
| Measure | Q3 2025 | Of which not filed for Q4 2025 | Q4 2025 | Change |
|---|---|---|---|---|
| Holders | 59 | 2 | 69 | +12 |
| Shares | 9.71M | 258.2K | 9.30M | −158.6K (−1.7%) |
| Value | $52.1M | $1.38M | $66.8M | +$16.1M (+31.7%) |
2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.
New holders (22)
Institutions that held One Stop Systems, Inc. at the end of Q4 2025 but not at the end of Q3 2025.
Sold out (10)
Institutions that held One Stop Systems, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| Polar Asset Management Partners Inc. | 292,252 | $1.57M |
| MYDA Advisors LLC | 100,000 | $536.0K |
| Marex Group plc | 77,050 | $413.0K |
| Jump Financial, LLC | 63,300 | $339.3K |
| HRT Financial LP | 43,985 | $235.0K |
| Virtu Financial LLC | 26,616 | $143.0K |
| Graham Capital Management, L.P. | 11,706 | $62.7K |
| Rockefeller Capital Management L.P. | 5,200 | $27.9K |
| Advisory Services Network, LLC | 2,191 | $11.7K |
| Stone House Investment Management, LLC | 300 | $1.61K |
Not filed for Q4 2025 yet (2)
Institutions that held One Stop Systems, Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q3 2025 | Value, Q3 2025 |
|---|---|---|
| AMH Equity Ltd | 200,000 | $1.07M |
| Cubist Systematic Strategies, LLC | 58,193 | $311.9K |