// company-profile
One Stop Systems, Inc.
OSS// activity-summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $561K across 3 transactions.
// 90-day insight
Over the last 90 days, One Stop Systems, Inc. insiders bought $0 (4 transactions) and sold $586K (4 transactions).
- Most active insider: Matz Gregory W with 2 transactions totaling $140K.
- Largest single sale: $332K by KNOWLES MICHAEL on Jun 5, 2026.
Activity is mixed — buys and sales are roughly balanced.
Institutional Ownership
Top 13F-HR holders of One Stop Systems, Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 5, 2026 | KNOWLES MICHAEL | OSS | Tax Withholding | 19,675 | $16.89 | $332K |
| May 26, 2026 | Herbets Mitchell H | OSS | Sale | 5,000 | $17.62 | $88K |
| May 26, 2026 | Matz Gregory W | OSS | Sale | 8,000 | $17.52 | $140K |
| May 20, 2026 | BASSETT DAVID GEORGE | OSS | Award | 11,984 | $0.00 | $0K |
| May 20, 2026 | Dumont Michael J. | OSS | Award | 11,984 | $0.00 | $0K |
45 more transactions hidden
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