KNOWLES MICHAEL (CIK 1755059) reported 11 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-12). Recent activity: Sell OSS (19,675 shares), Buy OSS (0 shares), Sell OSS (13,298 shares), Sell OSS (6,650 shares), Buy OSS (101,862 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-12 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Sell | 19,675 | $332,311 |
| 2026-03-27 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Buy | 0 | $0 |
| 2026-03-02 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Sell | 13,298 | $122,874 |
| 2026-03-02 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Sell | 6,650 | $57,855 |
| 2026-02-11 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Buy | 101,862 | $0 |
| 2026-01-07 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Sell | 19,075 | $136,958 |
| 2025-09-02 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Buy | 131,448 | $533,679 |
| 2025-09-02 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Sell | 16,800 | $63,168 |
| 2025-09-02 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Buy | 21,000 | $0 |
| 2025-09-02 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Sell | 19,075 | $58,370 |
| 2025-09-02 | ONE STOP SYSTEMS, INC. (OSS) | Chief Executive Officer | Sell | 8,359 | $43,968 |
Source: SEC Form 4 filings · as of 2026-06-12