OSS (One Stop Systems Inc.): Congressional Trading Activity
Who traded OSS?
OSS (One Stop Systems Inc.) appears in 1 STOCK Act disclosures from 1 filer (1 purchases, 0 sales), most recently Sean McMaster on Jan 13, 2026.
- Sean McMaster — 1 trade, last on Jan 13, 2026
Disclosed trades
| Filer | Trade date | Type | Amount |
|---|---|---|---|
| Sean McMaster | Jan 13, 2026 | Purchase | $15,001 - $50,000 |