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 $196.3M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by One Stop Systems, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for One Stop Systems, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Knowles Michael | Chief Executive Officer | 590,141 | Sep 4, 2026 | 6 |
| Gabel Daniel G. | Chief Financial Officer | 150,064 | Sep 4, 2026 | 5 |
| Matz Gregory W | Director | 78,914 | May 26, 2026 | 1 |
| Herbets Mitchell H | Director | 48,984 | May 26, 2026 | 1 |
| Dumont Michael J. | Director | 119,833 | May 26, 2026 | 1 |
| Bassett David George | Director | 24,984 | May 26, 2026 | 1 |
| Ison James | CPO | 231,148Indirect | Mar 2, 2026 | 1 |
| Morrison John W Jr. | Chief Financial Officer | 305,381 | Nov 12, 2024 | 0 |
| Manko Joseph M. Jr. | Director | 1,174,899Indirect | Aug 15, 2024 | 0 |
| Potashner Kenneth F | Director | 398,601 | Jul 11, 2024 | 0 |
| Messinger Gioia | Director | 49,690 | Jul 3, 2024 | 0 |
| Raun David | Director | 425,597 | Apr 3, 2024 | 0 |
| Cooper Steve D | 10% Owner | 1,923,572Indirect | Jan 24, 2024 | 0 |
| Harrison Jack | Director | 71,984 | Mar 21, 2022 | 0 |
| Sentovich Kimberly C. | Director | 39,266 | Mar 21, 2022 | 0 |
| Lowman Teresita M. | Director | 29,930 | Mar 21, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 26, 2026 (view filing) | May 26 | Same day | Bassett David GeorgeDirector | SSale | −8.00K | $17.64 | −$141.1K | −24.3%25.0K after | |
| May 26, 2026 (view filing) | May 26 | Same day | Matz Gregory WDirector | SSale | −8.00K | $17.52 | −$140.2K | −9.2%78.9K after | |
| May 26, 2026 (view filing) | May 26 | Same day | Herbets Mitchell HDirector | SSale | −5.00K | $17.62 | −$88.1K | −9.3%49.0K after | |
| Aug 15, 2024 (view filing) | Aug 13-14 | 2 days | Manko Joseph M. Jr.Director | PPurchase | +75.0K | $1.96 | +$146.8K | +6.8%1.17M after | 2 lots |
| Jan 24, 2024 (view filing) | Jan 22 | 2 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −206.0K | $1.81 | −$372.9K | −9.7%1.92M after | |
| Aug 18, 2023 (view filing) | Aug 16 | 2 days | Knowles MichaelChief Executive Officer | PPurchase | +1.13K | $1.80 | +$2.03K | +0.3%401.1K after | |
| Aug 15, 2023 (view filing) | Aug 14 | 1 day | Raun DavidDirector | PPurchase | +5.00K | $1.97 | +$9.85K | +1.2%411.6K after | |
| Aug 15, 2023 (view filing) | Aug 15 | Same day | Matz Gregory WDirector | PPurchase | +2.50K | $1.77 | +$4.42K | +8.2%32.9K after | |
| Aug 1, 2023 (view filing) | Jul 31 | 1 day | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −203.6K | $2.80 | −$570.1K | −8.7%2.13M after | |
| Apr 25, 2023 (view filing) | Apr 21 | 4 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −203.6K | $2.32 | −$472.3K | −8.0%2.33M after | |
| Dec 20, 2022 (view filing) | Dec 20 | Same day | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −200.3K | $2.70 | −$540.9K | −7.3%2.54M after | |
| Aug 26, 2022 (view filing) | Aug 25 | 1 day | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −21 | $4.05 | −$85.05 | 0.0%2.74M after | |
| Aug 17, 2022 (view filing) | Aug 15 | 2 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −2.90K | $4.05 | −$11.7K | −0.1%2.74M after | |
| Jul 27, 2022 (view filing) | Jul 22 | 5 daysLate | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −2.21K | $3.95 | −$8.73K | −0.1%2.74M after | |
| Jul 22, 2022 (view filing) | Jul 20-21 | 2 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −12.0K | $3.95 | −$47.4K | −0.4%2.74M after | 2 lots |
| Apr 11, 2022 (view filing) | Apr 8-11 | 3 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −77.9K | $4.37 | −$340.6K | −2.8%2.75M after | 2 lots |
| Mar 31, 2022 (view filing) | Mar 29 | 2 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −2.10K | $4.12 | −$8.65K | −0.1%2.83M after | |
| Jan 4, 2022 (view filing) | Dec 31, 2021 | 4 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −10.0K | $5.15 | −$51.5K | −0.4%2.83M after | |
| Nov 26, 2021 (view filing) | Nov 23-24 | 3 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −20.0K | $5.35 | −$107.0K | −0.7%2.84M after | 2 lots |
| Nov 22, 2021 (view filing) | Nov 22 | Same day | Raun DavidPresident and CEO | PPurchaseCommon Stocik | +2.00K | $5.00 | +$10.0K | +1.3%158.0K after | |
| Nov 4, 2021 (view filing) | Nov 2 | 2 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | +8.25K | $5.25 | +$43.3K | +0.3%2.86M after | |
| Sep 29, 2021 (view filing) | Sep 27 | 2 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −1.75K | $5.25 | −$9.17K | −0.1%2.87M after | |
| Sep 13, 2021 (view filing) | Sep 10 | 3 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −10.0K | $5.83 | −$58.3K | −0.3%2.87M after | |
| Sep 9, 2021 (view filing) | Sep 7-8 | 2 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −4.02K | $6.10 | −$24.5K | −0.1%2.88M after | 2 lots |
| Sep 7, 2021 (view filing) | Sep 2-3 | 5 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −50.0K | $6.03 | −$301.6K | −1.7%2.89M after | 2 lots |
| Aug 30, 2021 (view filing) | Aug 27 | 3 days | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −50.0K | $5.66 | −$283.0K | −1.7%2.94M after | |
| Aug 19, 2021 (view filing) | Aug 18 | 1 day | Raun DavidPresident and CEO | PPurchase | +2.00K | $5.45 | +$10.9K | +1.3%156.0K after | |
| Aug 11, 2021 (view filing) | Aug 6-10 | 5 daysLate | Cooper Steve D10% Owner | SSaleOne Stop Systems, Inc | −54.4K | $6.21 | −$338.0K | −1.8%2.99M after | 3 lots |