One Stop SystemsOSS
13F holders, Q2 2025 (June 30)At the end of Q2 2025, 39 institutions reported holding One Stop Systems Inc. (OSS) in their 13F filings, up 6 from Q1 2025. 10 opened new positions and 4 sold out. The largest holders were Lynrock Lake LP ($7.3M), Bard Associates Inc. ($3.4M) and Vanguard Group Inc. ($2.6M). 2 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- One Stop Systems Inc.
- CUSIP
- 68247W109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 10 | $1.1M |
| Exits | 4 | $40K |
All 13F filers, Q1 2025 → Q2 2025: 1,255,754 shares bought and 145,489 shares sold, net +1,110,265 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 39 holders
| Lynrock Lake LP | 1.13% | Reduce -0.8% | 2,049,374 | $7.3M |
| Bard Associates Inc. | 1.08% | Reduce -8.0% | 947,857 | $3.4M |
| Vanguard Group Inc. | 0.00% | Add +1.2% | 743,221 | $2.6M |
| Marshall Wace, LLP | 0.00% | Add +1130.1% | 476,393 | $1.7M |
| Pacific Ridge Capital Partners, LLC | 0.39% | Reduce -1.4% | 454,872 | $1.6M |
| Jane Street Group, LLC | 0.00% | Add +1542.1% | 268,182 | $952K |
| Geode Capital Management, LLC | 0.00% | Add +0.9% | 199,729 | $709K |
| Citadel Advisors | 0.00% | Add +404.5% | 153,538 | $545K |
| Archon Capital Management LLC | 0.45% | No change | 153,098 | $543K |
| Informed Momentum Co LLC | 0.07% | New | 135,388 | $481K |
| Renaissance Technologies | 0.00% | Add +9.7% | 101,860 | $362K |
| BlackRock, Inc. | 0.00% | Reduce -2.5% | 92,226 | $327K |
| State Street Corp. | 0.00% | Add +29.0% | 84,976 | $302K |
| Essex Investment Management Co. LLC | 0.05% | Reduce -1.2% | 72,791 | $258K |
| Morgan Stanley | 0.00% | Add +124.5% | 72,503 | $257K |
| Susquehanna International Group, LLP | 0.00% | Add +349.2% | 55,631 | $197K |
| Virtu Financial LLC | 0.01% | New | 50,425 | $179K |
| Northern Trust Corp. | 0.00% | Add +11.7% | 44,289 | $157K |
| HRT Financial LP | 0.00% | New | 39,158 | $139K |
| Dimensional Fund Advisors LP | 0.00% | Add +10.0% | 38,371 | $136K |
| Goldman Sachs Group Inc. | 0.00% | Add +40.5% | 37,020 | $131K |
| Cubist Systematic Strategies, LLC | 0.00% | New | 21,290 | $76K |
| Baker Tilly Wealth Management, LLC | 0.03% | No change | 20,000 | $71K |
| Legato Capital Management LLC | 0.01% | Reduce -4.7% | 17,132 | $61K |
| Quadrature Capital Ltd | 0.00% | New | 16,025 | $57K |
| Simplex Trading, LLC | 0.00% | Reduce -21.6% | 13,558 | $48K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 12,911 | $46K |
| Walleye Capital LLC | 0.00% | New | 12,857 | $46K |
| Granite Investment Partners, LLC | 0.00% | New | 11,068 | $39K |
| Marex Group Ltd | 0.00% | New | 10,000 | $36K |
| UBS Group AG | 0.00% | Reduce -57.5% | 8,731 | $31K |
| Group One Trading LLC | 0.00% | Reduce -18.2% | 8,348 | $30K |
| Bank of America Corp. | 0.00% | Add +3222.5% | 5,017 | $18K |
| MAI Capital Management | 0.00% | No change | 1,441 | $5K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -34.6% | 1,144 | $4K |
| Wells Fargo & Company | 0.00% | No change | 1,000 | $4K |
| Osaic Holdings, Inc. | 0.00% | New | 500 | $2K |
| Citigroup Inc. | 0.00% | New | 330 | $1K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -33.2% | 201 | $714 |
"% of holder's portfolio" is OSS's weight in each manager's 13F, not the share of One Stop Systems Inc. the manager owns.