One Stop Systems, Inc.
OSSFigures shown here come from public SEC filings. Dates beside each section show the available history.
How One Stop Systems, Inc. Makes Money
Follow each dollar of revenue through to what shareholders keep.
From revenue to net income
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Financial Summary
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SEC filings supply these figures; updates after the dates shown are not included. This page includes 9 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Jun 12, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| NORTHERN TRUST CORP | 2026-03-31 | 46,974 | $356K | SEC filing |
| ROYAL BANK OF CANADA | 2026-03-31 | 552 | $4K | SEC filing |
| MILLENNIUM MANAGEMENT LLC | 2026-03-31 | 400,729 | $3.03M | SEC filing |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 2026-03-31 | 35,534 | $269K | SEC filing |
| Brevan Howard Capital Management LP | 2026-03-31 | 43,171 | $327K | SEC filing |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2026-03-31 | 12,911 | $97.7K | SEC filing |
| NKCFO LLC | 2026-03-31 | 10,000 | Not shown | SEC filing |
| Squarepoint Ops LLC | 2026-03-31 | 58,476 | $443K | SEC filing |
| Penbrook Management LLC | 2026-03-31 | 46,740 | $354K | SEC filing |
| Eddie Patel Inc | 2026-03-31 | 67,059 | $508K | SEC filing |
| Centiva Capital, LP | 2026-03-31 | 33,627 | $255K | SEC filing |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 2026-03-31 | 236,299 | $1.79M | SEC filing |
| CITIGROUP INC | 2026-03-31 | 75,688 | $573K | SEC filing |
| Root Financial Partners, LLC | 2026-03-31 | 65 | $492 | SEC filing |
| CITADEL ADVISORS LLC | 2026-03-31 | 356,676 | $2.7M | SEC filing |
| MAI Capital Management | 2026-03-31 | 226 | $1.71K | SEC filing |
| Lynrock Lake LP | 2026-03-31 | 666 | $5.04K | SEC filing |
| OSAIC HOLDINGS, INC. | 2026-03-31 | 1,627 | $12.3K | SEC filing |
| BAKER TILLY WEALTH MANAGEMENT, LLC | 2026-03-31 | 20,000 | $151K | SEC filing |
| OMERS ADMINISTRATION Corp | 2026-03-31 | 15,200 | $115K | SEC filing |
- Each value is checked against One Stop Systems, Inc.'s share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- Value not shown for 1 row: the filed value is about 1,000 times too small for the share count at One Stop Systems, Inc.'s share price.
Filer report history
Two reports per filer, as filed. No change is calculated, because the data on file cannot confirm that both reports describe the same security.
- BARD ASSOCIATES INC: 850,858 shares reported 2025-12-31; 540,666 shares reported 2026-03-31.
- STATE STREET CORP: 84,576 shares reported 2025-12-31; 101,676 shares reported 2026-03-31.
- GOLDMAN SACHS GROUP INC: 128,749 shares reported 2025-12-31; 77,036 shares reported 2026-03-31.
- BlackRock, Inc.: 137,444 shares reported 2025-12-31; 597,303 shares reported 2026-03-31.
- RENAISSANCE TECHNOLOGIES LLC: 375,701 shares reported 2025-12-31; 259,960 shares reported 2026-03-31.
- SEI INVESTMENTS CO: 99,848 shares reported 2025-12-31; 166,632 shares reported 2026-03-31.
- MORGAN STANLEY: 62,240 shares reported 2025-12-31; 431,919 shares reported 2026-03-31.
- Informed Momentum Co LLC: 162,973 shares reported 2025-12-31; 135,989 shares reported 2026-03-31.
- MARSHALL WACE, LLP: 273,935 shares reported 2025-12-31; 418,978 shares reported 2026-03-31.
- GEODE CAPITAL MANAGEMENT, LLC: 238,495 shares reported 2025-12-31; 252,453 shares reported 2026-03-31.
- BNP PARIBAS FINANCIAL MARKETS: 228,336 shares reported 2025-12-31; 1,996 shares reported 2026-03-31.
- Trexquant Investment LP: 256,810 shares reported 2025-12-31; 217,829 shares reported 2026-03-31.
Showing the 12 most recent filer reports.
53 filers have only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among One Stop Systems, Inc.'s recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2024-01-22 · Cooper Steve D: Larger than all 24 other insider sales of One Stop Systems, Inc on file. SEC filing
- 2023-07-31 · Cooper Steve D: Larger than 22 of the 24 other insider sales of One Stop Systems, Inc on file. SEC filing
- 2023-04-21 · Cooper Steve D: Larger than 22 of the 24 other insider sales of One Stop Systems, Inc on file. SEC filing
Independent insiders buying near the same time
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-05-26 | Herbets Mitchell H · Director | Common Stock | S — Open market or private sale | −5,000 | 17.62 | SEC filing |
| 2026-05-26 | Matz Gregory W · Director | Common Stock | S — Open market or private sale | −8,000 | 17.52 | SEC filing |
| 2026-05-26 | BASSETT DAVID GEORGE · Director | Common Stock | S — Open market or private sale | −8,000 | 17.64 | SEC filing |
| 2024-08-14 | Manko Joseph M. Jr. · Director | Common Stock | P — Open market or private purchase | +25,000 | 1.99 | SEC filing |
| 2024-08-13 | Manko Joseph M. Jr. · Director | Common Stock | P — Open market or private purchase | +50,000 | 1.94 | SEC filing |
| 2024-01-22 | Cooper Steve D · 10% owner | One Stop Systems, Inc | S — Open market or private sale | −206,040 | 1.81 | SEC filing |
| 2023-10-13 | Dumont Michael J. · Director | Common Stock | P — Open market or private purchase | +4 | 2.05 | SEC filing |
| 2023-08-16 | KNOWLES MICHAEL · Chief Executive Officer | Common Stock | P — Open market or private purchase | +1,130 | 1.80 | SEC filing |
Showing 8 of 19 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-06-05 | KNOWLES MICHAEL · Chief Executive Officer | Common Stock | F — Payment of exercise price or tax by delivering securities | −19,675 | SEC filing |
| 2026-05-20 | BASSETT DAVID GEORGE · Director | Common Stock | A — Grant, award, or other acquisition | +11,984 | SEC filing |
| 2026-05-20 | Matz Gregory W · Director | Common Stock | A — Grant, award, or other acquisition | +11,984 | SEC filing |
| 2026-05-20 | Herbets Mitchell H · Director | Common Stock | A — Grant, award, or other acquisition | +11,984 | SEC filing |
| 2026-05-20 | Dumont Michael J. · Director | Common Stock | A — Grant, award, or other acquisition | +11,984 | SEC filing |
| 2026-05-11 | Gabel Daniel G. · Chief Financial Officer | Common Stock | F — Payment of exercise price or tax by delivering securities | −1,613 | SEC filing |
| 2026-02-15 | Ison James · CPO | Common Stock | G — Bona fide gift | −4,263 | SEC filing |
| 2026-02-15 | Ison James · CPO | Common Stock | G — Bona fide gift | +4,263 | SEC filing |
Showing 8 of 40 rows
Other activity
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2023-06-16 | RAUN DAVID · President and CEO | Common Stock | D — Disposition to the issuer | −59,566 | SEC filing |
Showing 1 of 1 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.