OSS ONE STOP SYSTEMS, INC.
Nasdaq · SEC CIK 1394056 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $369.4K 3 sales by 3 insiders
- Filings on record
- 134 since 2021-07-12, latest 2026-09-04 12:33
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| BASSETT DAVID GEORGE | Dir | — | $141.1K |
| Matz Gregory W | Dir | — | $140.2K |
| Herbets Mitchell H | Dir | — | $88.1K |
| Gabel Daniel G. | CFO | — | — |
| Dumont Michael J. | Dir | — | — |
| KNOWLES MICHAEL | CEO, Dir | — | — |
| Ison James | CPO | — | — |
Transactions 191
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2026-09-04 12:33 | 2026-08-07+ | OSS | KNOWLES MICHAEL | CEO, Dir | F - Tax | $13.46 | -17.2K | 590.1K | -3% | -$232.2K |
| 2026-09-04 12:31 | 2026-08-07 | OSS | Gabel Daniel G. | CFO | F - Tax | $13.32 | -3,832 | 150.1K | -2% | -$51.0K | |
| 2026-06-12 17:21 | 2026-06-05 | OSS | KNOWLES MICHAEL | CEO, Dir | F - Tax | $16.89 | -19.7K | 607.4K | -3% | -$332.3K | |
| 2026-05-28 12:46 | 2026-05-11 | OSS | Gabel Daniel G. | CFO | F - Tax | $15.68 | -1,613 | 153.9K | -1% | -$25.3K | |
| M | 2026-05-26 17:58 | 2025-05-21+ | OSS | BASSETT DAVID GEORGE | Dir | A - Grant | $0.00 | +33.0K | 33.0K | New | $0 |
| 2026-05-26 17:58 | 2026-05-26 | OSS | BASSETT DAVID GEORGE | Dir | S - Sale | $17.64 | -8,000 | 25.0K | -24% | -$141.1K | |
| 2026-05-26 17:44 | 2026-05-20 | OSS | Matz Gregory W | Dir | A - Grant | $0.00 | +12.0K | 86.9K | +16% | $0 | |
| 2026-05-26 17:44 | 2026-05-26 | OSS | Matz Gregory W | Dir | S - Sale | $17.52 | -8,000 | 78.9K | -9% | -$140.2K | |
| 2026-05-26 17:19 | 2026-05-20 | OSS | Dumont Michael J. | Dir | A - Grant | $0.00 | +12.0K | 119.8K | +11% | $0 | |
| 2026-05-26 17:04 | 2026-05-20 | OSS | Herbets Mitchell H | Dir | A - Grant | $0.00 | +12.0K | 54.0K | +29% | $0 | |
| 2026-05-26 17:04 | 2026-05-26 | OSS | Herbets Mitchell H | Dir | S - Sale | $17.62 | -5,000 | 49.0K | -9% | -$88.1K | |
| A | 2026-03-27 | 2025-05-21 | OSS | KNOWLES MICHAEL | CEO, Dir | A - Grant | — | 0 | 591.7K | New | — |
| M | 2026-03-02 | 2026-02-07+ | OSS | Ison James | CPO | G - Gift | $0.00 | -12.5K | 141.1K | -8% | $0 |
| 2026-03-02 | 2026-02-07 | OSS | Ison James | CPO | A - Grant | $0.00 | +34.3K | 155.8K | +28% | $0 | |
| MI | 2026-03-02 | 2026-02-07+ | OSS | Ison James | CPO | G - Gift | $0.00 | +12.5K | 226.9K | +6% | $0 |
| M | 2026-03-02 | 2026-02-07+ | OSS | Ison James | CPO | F - Tax | $9.07 | -9,666 | 149.3K | -6% | -$87.6K |
| M | 2026-03-02 | 2026-02-07+ | OSS | KNOWLES MICHAEL | CEO, Dir | F - Tax | $9.06 | -19.9K | 654.7K | -3% | -$180.7K |
| 2026-03-02 | 2026-02-07 | OSS | Gabel Daniel G. | CFO | F - Tax | $9.24 | -7,799 | 155.5K | -5% | -$72.1K | |
| 2026-02-11 | 2026-02-07 | OSS | KNOWLES MICHAEL | CEO, Dir | A - Grant | $0.00 | +101.9K | 668.0K | +18% | $0 | |
| 2026-02-11 | 2026-02-07 | OSS | Gabel Daniel G. | CFO | A - Grant | $0.00 | +55.2K | 163.3K | +51% | $0 | |
| 2026-01-12 | 2025-12-31 | OSS | Gabel Daniel G. | CFO | F - Tax | $7.18 | -3,215 | 108.1K | -3% | -$23.1K | |
| 2026-01-07 | 2025-12-31 | OSS | KNOWLES MICHAEL | CEO, Dir | F - Tax | $7.18 | -19.1K | 566.1K | -3% | -$137.0K | |
| M | 2025-09-02 | 2025-02-07+ | OSS | KNOWLES MICHAEL | CEO, Dir | A - Grant | $3.50 | +152.4K | 612.7K | +33% | +$533.7K |
| M | 2025-09-02 | 2025-02-20+ | OSS | KNOWLES MICHAEL | CEO, Dir | F - Tax | $3.74 | -44.2K | 593.6K | -7% | -$165.5K |
| I | 2025-08-25 | 2025-08-20 | OSS | Ison James | CPO | G - Gift | $0.00 | +4,271 | 218.7K | +2% | $0 |
| 2025-08-25 | 2025-08-20 | OSS | Ison James | CPO | G - Gift | $0.00 | -4,271 | 121.5K | -3% | $0 | |
| 2025-08-25 | 2025-08-20 | OSS | Ison James | CPO | F - Tax | $5.26 | -3,113 | 125.8K | -2% | -$16.4K | |
| 2025-05-28 | 2025-05-21 | OSS | Herbets Mitchell H | Dir | A - Grant | $0.00 | +21.0K | 42.0K | +100% | $0 | |
| 2025-05-27 | 2025-05-21 | OSS | Dumont Michael J. | Dir | F - Tax | $0.00 | +21.0K | 21.0K | New | $0 | |
| 2025-05-23 | 2025-05-21 | OSS | Matz Gregory W | Dir | A - Grant | $0.00 | +21.0K | 74.9K | +39% | $0 | |
| 2025-03-13 | 2025-02-20 | OSS | Ison James | CPO | G - Gift | $0.00 | -7,760 | 128.9K | -6% | $0 | |
| 2025-03-13 | 2025-02-20 | OSS | Ison James | CPO | F - Tax | $3.76 | -7,006 | 136.7K | -5% | -$26.3K | |
| I | 2025-03-13 | 2025-02-20 | OSS | Ison James | CPO | G - Gift | $0.00 | +7,760 | 214.4K | +4% | $0 |
| 2025-03-05 | 2025-02-07 | OSS | Gabel Daniel G. | CFO | A - Grant | $4.06 | +71.3K | 111.3K | +178% | +$289.4K | |
| 2025-02-24 | 2025-02-07 | OSS | Ison James | CPO | A - Grant | $4.06 | +44.3K | 135.9K | +48% | +$179.8K | |
| 2024-12-30 | 2020-12-05 | OSS | KNOWLES MICHAEL | CEO, Dir | F - Tax | $2.41 | -17.5K | 477.5K | -4% | -$42.2K | |
| 2024-11-12 | 2024-11-11 | OSS | Gabel Daniel G. | CFO | A - Grant | $0.00 | +40.0K | 40.0K | New | $0 | |
| 2024-09-25 | 2024-09-23 | OSS | Morrison John W Jr. | CFO | F - Tax | $2.19 | -5,961 | 305.4K | -2% | -$13.1K | |
| I | 2024-09-25 | 2024-09-23 | OSS | Ison James | CPO | G - Gift | $0.00 | +8,227 | 206.6K | +4% | $0 |
| 2024-09-25 | 2024-09-23 | OSS | Ison James | CPO | F - Tax | $2.19 | -4,440 | 99.9K | -4% | -$9,724 | |
| 2024-09-25 | 2024-09-23 | OSS | Ison James | CPO | G - Gift | $0.00 | -8,227 | 91.6K | -8% | $0 | |
| 2024-08-21 | 2024-08-20 | OSS | Ison James | CPO | G - Gift | $0.00 | -6,062 | 104.3K | -5% | $0 | |
| I | 2024-08-21 | 2024-08-20 | OSS | Ison James | CPO | G - Gift | $0.00 | +6,062 | 198.4K | +3% | $0 |
| 2024-08-21 | 2024-08-20 | OSS | Ison James | CPO | F - Tax | $2.16 | -3,271 | 110.4K | -3% | -$7,065 | |
| 2024-08-21 | 2024-08-20 | OSS | Morrison John W Jr. | CFO | F - Tax | $2.16 | -4,059 | 311.3K | -1% | -$8,767 | |
| MI | 2024-08-15 | 2024-08-13+ | OSS | Manko Joseph M. Jr. | Dir | P - Purchase | $1.96 | +75.0K | 1.17M | +7% | +$146.8K |
| D | 2024-07-11 | 2024-07-09 | OSS | POTASHNER KENNETH F | Dir | M - OptEx | $0.46 | +40.0K | 398.6K | +11% | +$18.4K |
| 2024-07-03 | 2024-07-01 | OSS | Herbets Mitchell H | Dir | A - Grant | $0.00 | +21.0K | 21.0K | New | $0 | |
| 2024-07-03 | 2024-07-01 | OSS | Matz Gregory W | Dir | A - Grant | $0.00 | +21.0K | 53.9K | +64% | $0 | |
| 2024-07-03 | 2024-07-01 | OSS | Ison James | CPO | A - Grant | $0.00 | +44.3K | 113.6K | +64% | $0 | |
| 2024-07-03 | 2024-07-01 | OSS | Manko Joseph M. Jr. | Dir | A - Grant | $0.00 | +21.0K | 21.0K | New | $0 | |
| 2024-07-03 | 2024-07-01 | OSS | POTASHNER KENNETH F | Dir | A - Grant | $0.00 | +21.0K | 358.6K | +6% | $0 | |
| 2024-07-03 | 2024-07-01 | OSS | KNOWLES MICHAEL | CEO, Dir | A - Grant | $0.00 | +131.4K | 494.5K | +36% | $0 | |
| 2024-07-03 | 2024-07-01 | OSS | Messinger Gioia | Dir | A - Grant | $0.00 | +21.0K | 49.7K | +73% | $0 | |
| 2024-07-03 | 2024-07-01 | OSS | Dumont Michael J. | Dir | A - Grant | $0.00 | +21.0K | 21.0K | New | $0 | |
| 2024-07-03 | 2024-07-01 | OSS | Morrison John W Jr. | CFO | A - Grant | $0.00 | +71.3K | 315.4K | +29% | $0 | |
| 2024-06-18 | 2024-06-17 | OSS | KNOWLES MICHAEL | CEO, Dir | F - Tax | $2.18 | -38.0K | 363.1K | -9% | -$82.9K | |
| 2024-05-28 | 2024-05-23 | OSS | Morrison John W Jr. | CFO | F - Tax | $2.41 | -1,257 | 244.1K | -0.5% | -$3,029 | |
| 2024-05-28 | 2024-05-23 | OSS | Ison James | CPO | F - Tax | $2.41 | -1,031 | 70.8K | -1% | -$2,485 | |
| 2024-05-28 | 2024-05-23 | OSS | Ison James | CPO | G - Gift | $0.00 | -1,469 | 69.3K | -2% | $0 | |
| I | 2024-05-28 | 2024-05-23 | OSS | Ison James | CPO | G - Gift | $0.00 | +1,469 | 192.4K | +0.8% | $0 |
| D | 2024-04-03 | 2024-04-01 | OSS | RAUN DAVID | Dir | M - OptEx | $2.15 | +14.0K | 425.6K | +3% | +$30.0K |
| D | 2024-04-03 | 2024-04-01 | OSS | POTASHNER KENNETH F | Dir | M - OptEx | $2.15 | +19.8K | 337.6K | +6% | +$42.5K |
| 2024-03-27 | 2024-03-25 | OSS | Ison James | CPO | F - Tax | $3.90 | -9,677 | 87.5K | -10% | -$37.7K | |
| 2024-03-27 | 2024-03-25 | OSS | Ison James | CPO | G - Gift | $0.00 | -15.7K | 71.8K | -18% | $0 | |
| I | 2024-03-27 | 2024-03-25 | OSS | Ison James | CPO | G - Gift | $0.00 | +15.7K | 190.9K | +9% | $0 |
| 2024-03-27 | 2024-03-25 | OSS | Morrison John W Jr. | CFO | F - Tax | $3.90 | -12.5K | 245.4K | -5% | -$48.8K | |
| 2024-02-07 | 2024-02-05 | OSS | Ison James | CPO | F - Tax | $2.01 | -3,766 | 102.7K | -4% | -$7,570 | |
| I | 2024-02-07 | 2024-02-05 | OSS | Ison James | CPO | G - Gift | $0.00 | +5,567 | 175.2K | +3% | $0 |
| 2024-02-07 | 2024-02-05 | OSS | Ison James | CPO | G - Gift | $0.00 | -5,567 | 97.2K | -5% | $0 | |
| 2024-02-07 | 2024-02-05 | OSS | Morrison John W Jr. | CFO | F - Tax | $2.01 | -4,624 | 257.9K | -2% | -$9,294 | |
| DI | 2024-01-30 | 2024-01-29 | OSS | Ison James | CPO | M - OptEx | $1.08 | +7,222 | 169.7K | +4% | +$7,800 |
| I | 2024-01-24 | 2024-01-22 | OSS | Cooper Steve D | 10% | S - Sale | $1.81 | -206.0K | 1.92M | -10% | -$372.9K |
| 2023-11-21 | 2023-11-21 | OSS | Morrison John W Jr. | CFO | F - Tax | $2.09 | -1,232 | 262.5K | -0.5% | -$2,575 | |
| 2023-11-21 | 2023-11-21 | OSS | Ison James | CPO | F - Tax | $2.09 | -849 | 108.2K | -0.8% | -$1,774 | |
| I | 2023-11-21 | 2023-11-21 | OSS | Ison James | CPO | G - Gift | $0.00 | +1,651 | 162.4K | +1% | $0 |
| 2023-11-21 | 2023-11-21 | OSS | Ison James | CPO | G - Gift | $0.00 | -1,651 | 106.5K | -2% | $0 | |
| 2023-11-20 | 2023-11-17 | OSS | Morrison John W Jr. | CFO | F - Tax | $1.99 | -2,463 | 263.7K | -0.9% | -$4,901 | |
| 2023-11-20 | 2023-11-17 | OSS | Ison James | CPO | G - Gift | $0.00 | -4,204 | 109.0K | -4% | $0 | |
| I | 2023-11-20 | 2023-11-17 | OSS | Ison James | CPO | G - Gift | $0.00 | +4,204 | 160.8K | +3% | $0 |
| 2023-11-20 | 2023-11-17 | OSS | Ison James | CPO | F - Tax | $1.99 | -2,463 | 113.2K | -2% | -$4,901 | |
| DMI | 2023-08-22 | 2023-08-18 | OSS | Ison James | CPO | M - OptEx | $0.5001 | +15.6K | 156.6K | +11% | +$7,800 |
| 2023-08-18 | 2023-08-16 | OSS | KNOWLES MICHAEL | CEO | P - Purchase | $1.80 | +1,130 | 401.1K | +0.3% | +$2,034 | |
| 2023-08-18 | 2023-08-16 | OSS | Ison James | CPO | G - Gift | $0.00 | -6,165 | 115.7K | -5% | $0 | |
| 2023-08-18 | 2023-08-16 | OSS | Ison James | CPO | F - Tax | $1.77 | -3,169 | 121.8K | -3% | -$5,609 | |
| I | 2023-08-18 | 2023-08-16 | OSS | Ison James | CPO | G - Gift | $0.00 | +6,165 | 141.0K | +5% | $0 |
| 2023-08-18 | 2023-08-16 | OSS | Morrison John W Jr. | CFO | F - Tax | $1.77 | -3,941 | 266.2K | -1% | -$6,976 | |
| 2023-08-15 | 2023-08-15 | OSS | Matz Gregory W | Dir | P - Purchase | $1.77 | +2,500 | 32.9K | +8% | +$4,425 | |
| 2023-08-15 | 2023-08-14 | OSS | RAUN DAVID | Dir | P - Purchase | $1.97 | +5,000 | 411.6K | +1% | +$9,850 | |
| I | 2023-08-01 | 2023-07-31 | OSS | Cooper Steve D | 10% | S - Sale | $2.80 | -203.6K | 2.13M | -9% | -$570.1K |
| D | 2023-06-28 | 2023-06-26 | OSS | POTASHNER KENNETH F | Dir | M - OptEx | $1.78 | +28.1K | 317.8K | +10% | +$50.0K |
| D | 2023-06-27 | 2023-06-23 | OSS | RAUN DAVID | Dir | M - OptEx | — | +7,434 | 409.6K | +2% | — |
| D | 2023-06-27 | 2023-06-23 | OSS | RAUN DAVID | Dir | F - Tax | $2.95 | -2,917 | 406.6K | -0.7% | -$8,605 |
| 2023-06-21 | 2023-06-16 | OSS | POTASHNER KENNETH F | Dir | A - Grant | $0.00 | +23.8K | 289.7K | +9% | $0 | |
| D | 2023-06-21 | 2023-06-16 | OSS | RAUN DAVID | Pres, CEO, Dir | M - OptEx | — | +68.7K | 514.6K | +15% | — |
| D | 2023-06-21 | 2023-06-16 | OSS | RAUN DAVID | Pres, CEO, Dir | F - Tax | $2.95 | -52.9K | 461.7K | -10% | -$156.0K |
| D | 2023-06-21 | 2023-06-16 | OSS | RAUN DAVID | Pres, CEO, Dir | D - Sale to Iss | $0.00 | -59.6K | 402.1K | -13% | $0 |
| D | 2023-06-06 | 2023-06-05 | OSS | KNOWLES MICHAEL | CEO | A - Grant | $0.00 | +400.0K | 400.0K | New | $0 |
| M | 2023-05-24 | 2023-05-22 | OSS | Morrison John W Jr. | CFO | F - Tax | $2.45 | -3,695 | 272.6K | -1% | -$9,065 |
| I | 2023-05-24 | 2023-05-22 | OSS | Ison James | CPO, CM, SO | G - Gift | $0.00 | +6,055 | 134.8K | +5% | $0 |
Purchase Sale Sale after option exercise All abbreviations