OSS
One Stop Systems Inc
NASDAQ: OSS · TECHNOLOGY · COMPUTER HARDWARE
$15.55
-10.63% today
Updated 2026-06-05
Market cap
$389.12M
P/E ratio
—
P/S ratio
11.09x
EPS (TTM)
$-0.04
Dividend yield
—
52W range
$3 – $21
Volume
1.8M
One Stop Systems Inc (OSS) Insider transactions
Net insider activity
Net buying (326,862 shares)
Buy transactions
47
Sell transactions
53
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-26 | MATZ, GREGORY W | Director | Sale | 8,000 | $17.52 | $140160.00 |
| 2026-05-26 | HERBETS, MITCHELL H | Director | Sale | 5,000 | $17.62 | $88100.00 |
| 2026-05-26 | BASSETT, DAVID GEORGE | Director | Sale | 8,000 | $17.64 | $141120.00 |
| 2026-05-20 | MATZ, GREGORY W | Director | Buy | 11,984 | — | — |
| 2026-05-20 | HERBETS, MITCHELL H | Director | Buy | 11,984 | — | — |
| 2026-05-20 | DUMONT, MICHAEL J. | Director | Buy | 11,984 | — | — |
| 2026-05-20 | BASSETT, DAVID GEORGE | Director | Buy | 11,984 | — | — |
| 2026-05-11 | GABEL, DANIEL G. | Chief Financial Officer | Sale | 1,613 | $15.68 | $25291.84 |
| 2026-02-15 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Sale | 6,650 | $8.70 | $57855.00 |
| 2026-02-15 | ISON, JAMES | CPO | Sale | 4,263 | — | — |
| 2026-02-15 | ISON, JAMES | CPO | Sale | 3,120 | $8.70 | $27144.00 |
| 2026-02-07 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Buy | 101,862 | — | — |
| 2026-02-07 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Sale | 13,298 | $9.24 | $122873.52 |
| 2026-02-07 | ISON, JAMES | CPO | Buy | 34,313 | — | — |
| 2026-02-07 | ISON, JAMES | CPO | Sale | 8,213 | — | — |
| 2026-02-07 | ISON, JAMES | CPO | Sale | 6,546 | $9.24 | $60485.04 |
| 2026-02-07 | GABEL, DANIEL G. | Chief Financial Officer | Buy | 55,239 | — | — |
| 2026-02-07 | GABEL, DANIEL G. | Chief Financial Officer | Sale | 7,799 | $9.24 | $72062.76 |
| 2025-12-31 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Sale | 19,075 | $7.18 | $136958.50 |
| 2025-12-31 | GABEL, DANIEL G. | Chief Financial Officer | Sale | 3,215 | $7.18 | $23083.70 |
| 2025-08-20 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Sale | 8,359 | $5.26 | $43968.34 |
| 2025-08-20 | ISON, JAMES | CPO | Buy | 4,271 | — | — |
| 2025-08-20 | ISON, JAMES | CPO | Sale | 3,113 | $5.26 | $16374.38 |
| 2025-06-05 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Sale | 19,075 | $3.06 | $58369.50 |
| 2025-05-21 | MATZ, GREGORY W | Director | Buy | 21,000 | — | — |
| 2025-05-21 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Buy | 21,000 | — | — |
| 2025-05-21 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Buy | — | — | — |
| 2025-05-21 | HERBETS, MITCHELL H | Director | Buy | 21,000 | — | — |
| 2025-05-21 | DUMONT, MICHAEL J. | Director | Buy | 21,000 | — | — |
| 2025-05-21 | BASSETT, DAVID GEORGE | Director | Buy | 21,000 | — | — |
| 2025-02-20 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Sale | 16,800 | $3.76 | $63168.00 |
| 2025-02-20 | ISON, JAMES | CPO | Sale | 7,760 | — | — |
| 2025-02-20 | ISON, JAMES | CPO | Sale | 7,006 | $3.76 | $26342.56 |
| 2025-02-20 | ISON, JAMES | CPO | Buy | 7,760 | — | — |
| 2025-02-07 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Buy | 131,448 | $4.06 | $533678.88 |
| 2025-02-07 | ISON, JAMES | CPO | Buy | 44,279 | $4.06 | $179772.74 |
| 2025-02-07 | GABEL, DANIEL G. | Chief Financial Officer | Buy | 71,284 | $4.06 | $289413.04 |
| 2024-11-11 | GABEL, DANIEL G. | Chief Financial Officer | Buy | 40,000 | — | — |
| 2024-09-23 | MORRISON, JOHN W JR. | Chief Financial Officer | Sale | 5,961 | $2.19 | $13054.59 |
| 2024-09-23 | ISON, JAMES | CPO | Buy | 8,227 | — | — |
| 2024-09-23 | ISON, JAMES | CPO | Sale | 4,440 | $2.19 | $9723.60 |
| 2024-08-20 | MORRISON, JOHN W JR. | Chief Financial Officer | Sale | 4,059 | $2.16 | $8767.44 |
| 2024-08-20 | ISON, JAMES | CPO | Buy | 6,062 | — | — |
| 2024-08-20 | ISON, JAMES | CPO | Sale | 3,271 | $2.16 | $7065.36 |
| 2024-08-14 | MANKO, JOSEPH M. JR. | Director | Buy | 25,000 | $1.99 | $49750.00 |
| 2024-08-13 | MANKO, JOSEPH M. JR. | Director | Buy | 50,000 | $1.94 | $97000.00 |
| 2024-07-09 | POTASHNER, KENNETH F | Director | Sale | 40,000 | — | — |
| 2024-07-09 | POTASHNER, KENNETH F | Director | Buy | 40,000 | $0.46 | $18400.00 |
| 2024-07-01 | POTASHNER, KENNETH F | Director | Buy | 21,000 | — | — |
| 2024-07-01 | MORRISON, JOHN W JR. | Chief Financial Officer | Buy | 71,300 | — | — |
| 2024-07-01 | MESSINGER, GIOIA | Director | Buy | 21,000 | — | — |
| 2024-07-01 | MATZ, GREGORY W | Director | Buy | 21,000 | — | — |
| 2024-07-01 | MANKO, JOSEPH M. JR. | Director | Buy | 21,000 | — | — |
| 2024-07-01 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Buy | 131,450 | — | — |
| 2024-07-01 | ISON, JAMES | CPO | Buy | 44,300 | — | — |
| 2024-07-01 | HERBETS, MITCHELL H | Director | Buy | 21,000 | — | — |
| 2024-07-01 | DUMONT, MICHAEL J. | Director | Buy | 21,000 | — | — |
| 2024-06-17 | KNOWLES, MICHAEL | Director, Chief Executive Officer | Sale | 38,050 | $2.18 | $82949.00 |
| 2024-05-23 | MORRISON, JOHN W JR. | Chief Financial Officer | Sale | 1,257 | $2.41 | $3029.37 |
| 2024-05-23 | ISON, JAMES | CPO | Sale | 1,469 | — | — |
| 2024-05-23 | ISON, JAMES | CPO | Sale | 1,031 | $2.41 | $2484.71 |
| 2024-04-01 | RAUN, DAVID | Director | Sale | 13,953 | — | — |
| 2024-04-01 | RAUN, DAVID | Director | Buy | 13,953 | $2.15 | $29998.95 |
| 2024-04-01 | POTASHNER, KENNETH F | Director | Sale | 19,767 | — | — |
| 2024-04-01 | POTASHNER, KENNETH F | Director | Buy | 19,767 | $2.15 | $42499.05 |
| 2024-03-25 | MORRISON, JOHN W JR. | Chief Financial Officer | Sale | 12,504 | $3.90 | $48765.60 |
| 2024-03-25 | ISON, JAMES | CPO | Sale | 15,656 | — | — |
| 2024-03-25 | ISON, JAMES | CPO | Sale | 9,677 | $3.90 | $37740.30 |
| 2024-02-05 | MORRISON, JOHN W JR. | Chief Financial Officer | Sale | 4,624 | $2.01 | $9294.24 |
| 2024-02-05 | ISON, JAMES | CPO | Buy | 5,567 | — | — |
| 2024-02-05 | ISON, JAMES | CPO | Sale | 3,766 | $2.01 | $7569.66 |
| 2024-01-29 | ISON, JAMES | CPO | Sale | 7,222 | — | — |
| 2024-01-29 | ISON, JAMES | CPO | Buy | 7,222 | $1.08 | $7799.76 |
| 2024-01-22 | COOPER, STEVE D | 10% Owner | Sale | 206,040 | $1.81 | $372932.40 |
| 2023-11-21 | MORRISON, JOHN W JR. | Chief Financial Officer | Sale | 1,232 | $2.09 | $2574.88 |
| 2023-11-21 | ISON, JAMES | CPO | Sale | 1,651 | — | — |
| 2023-11-21 | ISON, JAMES | CPO | Sale | 849 | $2.09 | $1774.41 |
| 2023-11-17 | MORRISON, JOHN W JR. | Chief Financial Officer | Sale | 2,463 | $1.99 | $4901.37 |
| 2023-11-17 | ISON, JAMES | CPO | Buy | 4,204 | — | — |
| 2023-11-17 | ISON, JAMES | CPO | Sale | 2,463 | $1.99 | $4901.37 |
| 2023-08-18 | ISON, JAMES | CPO | Sale | 14,587 | — | — |
| 2023-08-18 | ISON, JAMES | CPO | Sale | 1,009 | — | — |
| 2023-08-18 | ISON, JAMES | CPO | Buy | 14,587 | $0.46 | $6710.02 |
| 2023-08-18 | ISON, JAMES | CPO | Buy | 1,009 | $1.08 | $1089.72 |
| 2023-08-16 | MORRISON, JOHN W JR. | Chief Financial Officer | Sale | 3,941 | $1.77 | $6975.57 |
| 2023-08-16 | KNOWLES, MICHAEL | Chief Executive Officer | Buy | 1,130 | $1.80 | $2034.00 |
| 2023-08-16 | ISON, JAMES | CPO | Buy | 6,165 | — | — |
| 2023-08-16 | ISON, JAMES | CPO | Sale | 3,169 | $1.77 | $5609.13 |
| 2023-08-15 | MATZ, GREGORY W | Director | Buy | 2,500 | $1.77 | $4425.00 |
| 2023-08-14 | RAUN, DAVID | Director | Buy | 5,000 | $1.97 | $9850.00 |
| 2023-07-31 | COOPER, STEVE D | 10% Owner | Sale | 203,591 | $2.80 | $570054.80 |
| 2023-06-26 | POTASHNER, KENNETH F | Director | Sale | 28,090 | — | — |
| 2023-06-26 | POTASHNER, KENNETH F | Director | Buy | 28,090 | $1.78 | $50000.20 |
| 2023-06-23 | RAUN, DAVID | Director | Sale | 7,434 | — | — |
| 2023-06-23 | RAUN, DAVID | Director | Buy | 7,434 | — | — |
| 2023-06-23 | RAUN, DAVID | Director | Sale | 2,917 | $2.95 | $8605.15 |
| 2023-06-16 | RAUN, DAVID | Director, President and CEO | Sale | 68,688 | — | — |
| 2023-06-16 | RAUN, DAVID | Director, President and CEO | Buy | 68,688 | — | — |
| 2023-06-16 | RAUN, DAVID | Director, President and CEO | Sale | 59,566 | — | — |
| 2023-06-16 | RAUN, DAVID | Director, President and CEO | Sale | 52,883 | $2.95 | $156004.85 |
Frequently asked questions
Are OSS insiders buying or selling?
Over the transactions on record, OSS insiders have been net sellers, with about $2.47M in stock sold across 53 sales, against 15 open-market purchases.
Does insider selling at OSS mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which OSS insiders are selling the most?
Recent selling is concentrated in a few names. COOPER, STEVE D accounts for the largest share on record, with about $942987.20 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.