One Stop SystemsOSS
13F holders, Q1 2026 (March 31)77holders +8
24new positions
17sold out
3famous investors
$7.57avg. 13F price*
At the end of Q1 2026, 77 institutions reported holding One Stop Systems Inc. (OSS) in their 13F filings, up 8 from Q4 2025. 24 opened new positions and 17 sold out. The largest holders were Vanguard Capital Management LLC ($7.3M), Jane Street Group, LLC ($6.6M) and BlackRock, Inc. ($4.5M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- One Stop Systems Inc.
- CUSIP
- 68247W109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 24 | $4.1M |
| Exits | 17 | $16.7M |
All 13F filers, Q4 2025 → Q1 2026: 3,131,779 shares bought and 4,086,126 shares sold, net −954,347 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 77 holders
| Vanguard Capital Management LLC | 0.00% | — | 959,588 | $7.3M |
| Jane Street Group, LLC | 0.01% | Add +44.8% | 874,558 | $6.6M |
| BlackRock, Inc. | 0.00% | Add +334.6% | 597,303 | $4.5M |
| Bard Associates Inc. | 1.03% | Reduce -36.5% | 540,666 | $4.1M |
| Morgan Stanley | 0.00% | Add +594.0% | 431,919 | $3.3M |
| Marshall Wace, LLP | 0.00% | Add +53.0% | 418,978 | $3.2M |
| UBS Group AG | 0.00% | Add +5704.5% | 407,014 | $3.1M |
| Millennium Management | 0.00% | Add +865.4% | 400,729 | $3.0M |
| Citadel Advisors | 0.00% | Add +144.8% | 356,676 | $2.7M |
| Renaissance Technologies | 0.00% | Reduce -30.8% | 259,960 | $2.0M |
| DNB Asset Management AS | 0.01% | Add +65.3% | 252,733 | $1.9M |
| Geode Capital Management, LLC | 0.00% | Add +5.8% | 252,453 | $1.9M |
| Susquehanna International Group, LLP | 0.00% | Reduce -8.8% | 236,299 | $1.8M |
| Trexquant Investment LP | 0.01% | Reduce -15.2% | 217,829 | $1.6M |
| Sei Investments Co. | 0.00% | Add +66.9% | 166,632 | $1.3M |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +28.8% | 145,624 | $1.1M |
| Informed Momentum Co LLC | 0.12% | Reduce -16.6% | 135,989 | $1.0M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 128,759 | $975K |
| State Street Corp. | 0.00% | Add +20.2% | 101,676 | $770K |
| Thompson Siegel & Walmsley LLC | 0.01% | Reduce -36.7% | 96,963 | $734K |
| HRT Financial LP | 0.00% | New | 79,005 | $598K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -40.2% | 77,036 | $583K |
| Citigroup Inc. | 0.00% | Add +1571.9% | 75,688 | $573K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | New | 73,865 | $559K |
| Eddie Patel Inc | 0.39% | New | 67,059 | $508K |
| Oxford Asset Management LLP | 0.20% | New | 64,403 | $488K |
| Virtu Financial LLC | 0.02% | New | 61,458 | $465K |
| 683 Capital Management, LLC | 0.04% | Reduce -33.5% | 60,000 | $454K |
| Squarepoint Ops LLC | 0.00% | Reduce -60.5% | 58,476 | $443K |
| XTX Topco Ltd | 0.01% | Reduce -7.2% | 50,862 | $385K |
| Northern Trust Corp. | 0.00% | Add +12.1% | 46,974 | $356K |
| Penbrook Management LLC | 0.27% | No change | 46,740 | $354K |
| Brevan Howard Capital Management LP | 0.00% | Add +53.4% | 43,171 | $327K |
| Stifel Financial Corp. | 0.00% | New | 37,913 | $287K |
| Hudson Bay Capital Management LP | 0.00% | Add +14.3% | 37,376 | $283K |
| Essex Investment Management Co. LLC | 0.04% | Reduce -48.8% | 35,534 | $269K |
| Centiva Capital, LP | 0.01% | Add +193.3% | 33,627 | $255K |
| Schonfeld Strategic Advisors LLC | 0.00% | Reduce -9.2% | 29,480 | $223K |
| Engineers Gate Manager LP | 0.00% | Reduce -14.3% | 29,000 | $220K |
| Hillsdale Investment Management Inc. | 0.01% | Reduce -6.5% | 28,844 | $218K |
| SG Americas Securities, LLC | 0.00% | New | 28,022 | $212K |
| Mangrove Partners Im, LLC | 0.01% | New | 23,889 | $181K |
| Bank of America Corp. | 0.00% | Add +129005.6% | 23,239 | $176K |
| Apollon Wealth Management, LLC | 0.00% | New | 21,040 | $159K |
| Barclays PLC | 0.00% | Reduce -11.2% | 20,503 | $155K |
| Baker Tilly Wealth Management, LLC | 0.04% | No change | 20,000 | $151K |
| Landscape Capital Management, L.L.C. | 0.01% | New | 17,269 | $131K |
| Occudo Quantitative Strategies LP | 0.01% | Reduce -61.4% | 13,738 | $130K |
| Anfield Capital Management, LLC | 0.04% | New | 17,000 | $129K |
| OMERS ADMINISTRATION Corp | 0.00% | Reduce -68.5% | 15,200 | $115K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 12,911 | $98K |
| McAdam, LLC | 0.00% | Reduce -0.0% | 12,746 | $96K |
| Choreo, LLC | 0.00% | New | 11,306 | $86K |
| IMC-Chicago, LLC | 0.00% | New | 11,187 | $85K |
| Strait & Sound Wealth Management LLC | 0.03% | New | 11,044 | $84K |
| Vanguard Global Advisers, LLC | 0.00% | — | 10,819 | $82K |
| Nkcfo LLC | 0.02% | Reduce -23.1% | 10,000 | $76K |
| Lodestone Wealth Management LLC | 0.02% | New | 6,803 | $51K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -75.2% | 4,754 | $36K |
| Smartleaf Asset Management LLC | 0.00% | No change | 4,000 | $29K |
| Caitong International Asset Management Co., Ltd | 0.01% | New | 3,632 | $27K |
| NewEdge Advisors, LLC | 0.00% | New | 3,020 | $23K |
| Arax Advisory Partners | 0.00% | Add +409.5% | 2,471 | $22K |
| Advisory Services Network, LLC | 0.00% | New | 2,341 | $18K |
| BNP Paribas Financial Markets | 0.00% | Reduce -99.1% | 1,996 | $15K |
| Osaic Holdings, Inc. | 0.00% | Add +80.8% | 1,627 | $12K |
| Wells Fargo & Company | 0.00% | No change | 1,000 | $8K |
| Lynrock Lake LP | 0.00% | Reduce -99.9% | 666 | $5K |
| Hurley Capital, LLC | 0.00% | New | 622 | $5K |
| Royal Bank of Canada | 0.00% | Add +144.3% | 552 | $4K |
| MAI Capital Management | 0.00% | New | 226 | $2K |
| Steward Partners Investment Advisory, LLC | 0.00% | New | 200 | $2K |
| Jones Financial Companies LLLP | 0.00% | New | 174 | $1K |
| Strive Financial Group ,LLC | 0.00% | No change | 100 | $1K |
| Root Financial Partners, LLC | 0.00% | New | 65 | $492 |
| FMR LLC | 0.00% | New | 56 | $421 |
| SBI Securities Co., Ltd. | 0.00% | Add +1300.0% | 14 | $106 |
"% of holder's portfolio" is OSS's weight in each manager's 13F, not the share of One Stop Systems Inc. the manager owns.