In the last 12 months, insiders at ONE STOP SYSTEMS, INC. ($OSS) filed 75 transactions with the SEC: 3 open-market purchases totaling $146,758 and 1 sales totaling $372,932. Net insider sentiment: net selling.
ONE STOP SYSTEMS, INC. operates in the Electronic computers industry (Technology sector).
Most Active Insiders
- KNOWLES MICHAEL (Chief Executive Officer) — 13 transactions totaling $1,142,056
- Gabel Daniel G. (Chief Financial Officer) — 5 transactions totaling $384,560
- Ison James (CPO) — 32 transactions totaling $382,502
- Cooper Steve D (TenPercentOwner) — 1 transaction totaling $372,932
- Manko Joseph M. Jr. (Not found) — 3 transactions totaling $146,750
View all SEC Filings for ONE STOP SYSTEMS, INC. (OSS).
Set Up your own filters →Recent Insider Transactions
| Transaction Date | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|
| May 21, 2025 | KNOWLES MICHAEL | Chief Executive Officer | A | Common Stock | 0 | $0.00 | 591,653.0000 | 20,323,261 | 0.00% | 0.00% |
| Feb. 7, 2026 | Ison James | CPO | A | Common Stock | 34313 | $0.00 | 386,984.0000 | 24,515,491 | 9.73% | 0.14% |
| Feb. 15, 2026 | Ison James | CPO | G | Common Stock | 4263 | $0.00 | 373,055.0000 | 24,515,491 | 1.13% | 0.02% |
| Feb. 15, 2026 | Ison James | CPO | G | Common Stock | 4263 | $0.00 | 373,055.0000 | 24,515,491 | 1.16% | 0.02% |
| Feb. 7, 2026 | Gabel Daniel G. | Chief Financial Officer | F | Common Stock | 7799 | $9.24 | 155,509.0000 | 24,515,491 | 4.78% | 0.03% |
| Feb. 7, 2026 | KNOWLES MICHAEL | Chief Executive Officer | F | Common Stock | 13298 | $9.24 | 654,708.0000 | 24,515,491 | 1.99% | 0.05% |
| Feb. 15, 2026 | KNOWLES MICHAEL | Chief Executive Officer | F | Common Stock | 6650 | $8.70 | 648,058.0000 | 24,515,491 | 1.02% | 0.03% |
| Feb. 15, 2026 | Ison James | CPO | F | Common Stock | 3120 | $8.70 | 377,318.0000 | 24,515,491 | 0.82% | 0.01% |
| Feb. 7, 2026 | Ison James | CPO | G | Common Stock | 8213 | $0.00 | 368,792.0000 | 24,515,491 | 2.28% | 0.03% |
| Feb. 7, 2026 | Ison James | CPO | G | Common Stock | 8213 | $0.00 | 372,225.0000 | 24,515,491 | 2.16% | 0.03% |
| Feb. 7, 2026 | Ison James | CPO | F | Common Stock | 6546 | $9.24 | 380,438.0000 | 24,515,491 | 1.69% | 0.03% |
| Feb. 7, 2026 | Gabel Daniel G. | Chief Financial Officer | A | Common Stock | 55239 | $0.00 | 163,308.0000 | 24,515,491 | 51.11% | 0.23% |
| Feb. 7, 2026 | KNOWLES MICHAEL | Chief Executive Officer | A | Common Stock | 101862 | $0.00 | 668,006.0000 | 24,515,491 | 17.99% | 0.42% |
| Dec. 31, 2025 | Gabel Daniel G. | Chief Financial Officer | F | Common Stock | 3215 | $7.18 | 108,069.0000 | 24,515,491 | 2.89% | 0.01% |
| Dec. 31, 2025 | KNOWLES MICHAEL | Chief Executive Officer | F | Common Stock | 19075 | $7.18 | 566,144.0000 | 24,515,491 | 3.26% | 0.08% |
| Feb. 7, 2025 | KNOWLES MICHAEL | Chief Executive Officer | A | Common Stock | 131448 | $4.06 | 608,453.0000 | 0 | 27.56% | 0.00% |
| Aug. 20, 2025 | KNOWLES MICHAEL | Chief Executive Officer | F | Common Stock | 8359 | $5.26 | 585,219.0000 | 20,323,261 | 1.41% | 0.04% |
| June 5, 2025 | KNOWLES MICHAEL | Chief Executive Officer | F | Common Stock | 19075 | $3.06 | 593,578.0000 | 20,323,261 | 3.11% | 0.09% |
| May 21, 2025 | KNOWLES MICHAEL | Chief Executive Officer | A | Common Stock | 21000 | $0.00 | 612,653.0000 | 20,323,261 | 3.55% | 0.10% |
| Feb. 20, 2025 | KNOWLES MICHAEL | Chief Executive Officer | F | Common Stock | 16800 | $3.76 | 591,653.0000 | 0 | 2.76% | 0.00% |
| Aug. 20, 2025 | Ison James | CPO | F | Common Stock | 3113 | $5.26 | 344,466.0000 | 20,323,261 | 0.90% | 0.02% |
| Aug. 20, 2025 | Ison James | CPO | G | Common Stock | 4271 | $0.00 | 340,195.0000 | 20,323,261 | 1.24% | 0.02% |
| Aug. 20, 2025 | Ison James | CPO | G | Common Stock | 4271 | $0.00 | 340,195.0000 | 20,323,261 | 1.27% | 0.02% |
| May 21, 2025 | Herbets Mitchell H | Not found | A | Common Stock | 21000 | $0.00 | 42,000.0000 | 20,323,261 | 100.00% | 0.10% |
| May 21, 2025 | Dumont Michael J. | Not found | F | Common Stock | 21000 | $0.00 | 107,849.0000 | 20,323,261 | 24.18% | 0.10% |
| May 21, 2025 | Matz Gregory W | Not found | A | Common Stock | 21000 | $0.00 | 74,930.0000 | 20,323,261 | 38.94% | 0.10% |
| Feb. 20, 2025 | Ison James | CPO | G | Common Stock | 7760 | $0.00 | 128,907.0000 | 0 | 5.68% | 0.00% |
| Feb. 20, 2025 | Ison James | CPO | G | Common | 7760 | $0.00 | 214,401.0000 | 0 | 3.76% | 0.00% |
| Feb. 20, 2025 | Ison James | CPO | F | Common Stock | 7006 | $3.76 | 136,667.0000 | 0 | 4.88% | 0.00% |
| Feb. 7, 2025 | Gabel Daniel G. | Chief Financial Officer | A | Common Stock | 71284 | $4.06 | 111,284.0000 | 0 | 178.21% | 0.00% |
| Feb. 7, 2025 | Ison James | CPO | A | Common Stock | 44279 | $4.06 | 135,913.0000 | 0 | 48.32% | 0.00% |
| Dec. 5, 2020 | KNOWLES MICHAEL | Chief Executive Officer | F | Common Stock | 17525 | $2.41 | 477,530.0000 | 0 | 3.54% | 0.00% |
| Nov. 11, 2024 | Gabel Daniel G. | Chief Financial Officer | A | Common Stock | 40000 | $0.00 | 40,000.0000 | 0 | 9999.99% | 0.00% |
| Sept. 23, 2024 | Morrison John W Jr. | Chief Financial Officer | F | Common Stock | 5961 | $2.19 | 305,381.0000 | 0 | 1.91% | 0.00% |
| Sept. 23, 2024 | Ison James | CPO | F | Common Stock | 4440 | $2.19 | 306,502.0000 | 0 | 1.43% | 0.00% |
| Sept. 23, 2024 | Ison James | CPO | G | Common Stock | 8227 | $0.00 | 298,275.0000 | 0 | 2.68% | 0.00% |
| Sept. 23, 2024 | Ison James | CPO | G | Common Stock | 8227 | $0.00 | 298,275.0000 | 0 | 2.84% | 0.00% |
| Aug. 20, 2024 | Ison James | CPO | G | Common Stock | 6062 | $0.00 | 302,715.0000 | 0 | 2.04% | 0.00% |
| Aug. 20, 2024 | Ison James | CPO | F | Common Stock | 3271 | $2.16 | 308,777.0000 | 0 | 1.05% | 0.00% |
| Aug. 20, 2024 | Ison James | CPO | G | Common Stock | 6062 | $0.00 | 302,715.0000 | 0 | 1.96% | 0.00% |
| Aug. 20, 2024 | Morrison John W Jr. | Chief Financial Officer | F | Common Stock | 4059 | $2.16 | 311,342.0000 | 0 | 1.29% | 0.00% |
| Aug. 13, 2024 | Manko Joseph M. Jr. | Not found | P | Common Stock | 50000 | $1.94 | 1,170,899.0000 | 0 | 4.46% | 0.00% |
| Aug. 14, 2024 | Manko Joseph M. Jr. | Not found | P | Common Stock | 25000 | $1.99 | 1,195,899.0000 | 0 | 2.14% | 0.00% |
| July 9, 2024 | POTASHNER KENNETH F | Not found | M | Common Stock | 40000 | $0.46 | 398,601.0000 | 0 | 11.15% | 0.00% |
| July 9, 2024 | POTASHNER KENNETH F | Not found | M | Employee Stock Option (right to buy) | 40000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| July 1, 2024 | Matz Gregory W | Not found | A | Common Stock | 21000 | $0.00 | 53,930.0000 | 0 | 63.77% | 0.00% |
| July 1, 2024 | Manko Joseph M. Jr. | Not found | A | Common Stock | 21000 | $0.00 | 1,120,899.0000 | 0 | 1.91% | 0.00% |
| July 1, 2024 | KNOWLES MICHAEL | Chief Executive Officer | A | Common Stock | 131450 | $0.00 | 494,530.0000 | 0 | 36.20% | 0.00% |
| July 1, 2024 | Dumont Michael J. | Not found | A | Common Stock | 21000 | $0.00 | 86,849.0000 | 0 | 31.89% | 0.00% |
| July 1, 2024 | Herbets Mitchell H | Not found | A | Common Stock | 21000 | $0.00 | 21,000.0000 | 0 | 9999.99% | 0.00% |
| July 1, 2024 | Messinger Gioia | Not found | A | Common Stock | 21000 | $0.00 | 49,690.0000 | 0 | 73.20% | 0.00% |
| July 1, 2024 | POTASHNER KENNETH F | Not found | A | Common Stock | 21000 | $0.00 | 358,601.0000 | 0 | 6.22% | 0.00% |
| July 1, 2024 | Morrison John W Jr. | Chief Financial Officer | A | Common Stock | 71300 | $0.00 | 315,401.0000 | 0 | 29.21% | 0.00% |
| July 1, 2024 | Ison James | CPO | A | Common Stock | 44300 | $0.00 | 305,986.0000 | 0 | 16.93% | 0.00% |
| June 17, 2024 | KNOWLES MICHAEL | Chief Executive Officer | F | Common Stock | 38050 | $2.18 | 363,080.0000 | 0 | 9.49% | 0.00% |
| May 23, 2024 | Ison James | CPO | F | Common Stock | 1031 | $2.41 | 263,155.0000 | 0 | 0.39% | 0.00% |
| May 23, 2024 | Ison James | CPO | G | Common Stock | 1469 | $0.00 | 261,686.0000 | 0 | 0.56% | 0.00% |
| May 23, 2024 | Ison James | CPO | G | Common Stock | 1469 | $0.00 | 261,686.0000 | 0 | 0.56% | 0.00% |
| May 23, 2024 | Morrison John W Jr. | Chief Financial Officer | F | Common Stock | 1257 | $2.41 | 244,101.0000 | 0 | 0.51% | 0.00% |
| April 1, 2024 | RAUN DAVID | Director | M | Warrant (right to buy) | 13953 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| April 1, 2024 | POTASHNER KENNETH F | Director | M | Common Stock | 19767 | $2.15 | 337,601.0000 | 0 | 6.22% | 0.00% |
| April 1, 2024 | RAUN DAVID | Director | M | Common Stock | 13953 | $2.15 | 425,597.0000 | 0 | 3.39% | 0.00% |
| April 1, 2024 | POTASHNER KENNETH F | Director | M | Warrant (right to buy) | 19767 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| March 25, 2024 | Ison James | CPO | G | Common Stock | 15656 | $0.00 | 262,717.0000 | 0 | 5.62% | 0.00% |
| March 25, 2024 | Ison James | CPO | F | Common Stock | 9677 | $3.90 | 278,373.0000 | 0 | 3.36% | 0.00% |
| March 25, 2024 | Morrison John W Jr. | Chief Financial Officer | F | Common Stock | 12504 | $3.90 | 245,358.0000 | 0 | 4.85% | 0.00% |
| March 25, 2024 | Ison James | CPO | G | Common Stock | 15656 | $0.00 | 262,717.0000 | 0 | 6.34% | 0.00% |
| Oct. 13, 2023 | Dumont Michael J. | Director | P | Common Stock | 4 | $2.05 | 65,849.0000 | 0 | 0.01% | 0.00% |
| Feb. 5, 2024 | Ison James | CPO | G | Common Stock | 5567 | $0.00 | 272,394.0000 | 0 | 2.09% | 0.00% |
| Feb. 5, 2024 | Morrison John W Jr. | Chief Financial Officer | F | Common Stock | 4624 | $2.01 | 257,862.0000 | 0 | 1.76% | 0.00% |
| Feb. 5, 2024 | Ison James | CPO | G | Common Stock | 5567 | $0.00 | 272,394.0000 | 0 | 2.00% | 0.00% |
| Feb. 5, 2024 | Ison James | CPO | F | Common Stock | 3766 | $2.01 | 277,961.0000 | 0 | 1.34% | 0.00% |
| Jan. 29, 2024 | Ison James | CPO | M | Common Stock | 7222 | $1.08 | 276,160.0000 | 0 | 2.69% | 0.00% |
| Jan. 29, 2024 | Ison James | CPO | M | Employee Stock Option (right to buy) | 7222 | $0.00 | 16,769.0000 | 0 | 30.10% | 0.00% |
| Jan. 22, 2024 | Cooper Steve D | TenPercentOwner | S | One Stop Systems, Inc | 206040 | $1.81 | 1,923,572.0000 | 0 | 9.68% | 0.00% |