ONE STOP SYSTEMS, INC. (OSS)
Data as of , from SEC Form 4 filings.
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- David George BassettOpen-market sale$141K
Gregory W. MatzOpen-market sale$140K- Mitchell H. HerbetsOpen-market sale
About ONE STOP SYSTEMS, INC. (OSS)
One Stop Systems Inc designs, manufactures, and markets specialized rugged high-performance compute ("HPC"), high-speed switch fabrics, and storage systems, which are designed to target edge applications for artificial intelligence ("AI") / machine learning ("ML"), sensor processing, sensor fusion, and autonomy.
- ESCONDIDO, CA
- 57
- 2018
- XNAS
OSS Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Tax withholding / forfeiture | 3 | 21,074 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
OSS insider transactions (Form 4)
3821 Form 4 filings on record, the earliest from Nov 12, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 8,621 footnote F1 | $13.32 | $115K | |
| Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 8,621 footnote F3 | $13.61 | $117K | |
| ||||||
| Daniel G. Gabel - Officer | Tax withholding / forfeiture | Common Stock | 3,832 footnote F1 | $13.32 | $51K | |
| ||||||
| Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 19,675 footnote F1 | $16.89 | $332K | |
| ||||||
| Daniel G. Gabel - Officer | Tax withholding / forfeiture | Common Stock | 1,613 footnote F1 | $15.68 | $25K | |
| ||||||
| David George Bassett | Grant or award | Common Stock | 21,000 footnote F1 | $0.00 | - | |
| David George Bassett | Grant or award | Common Stock | 11,984 footnote F3 | $0.00 | - | |
| David George Bassett | Open-market sale | Common Stock | 8,000 footnote F5 | $17.64 | $141K | |
| ||||||
| Gregory W. Matz | Grant or award | Common Stock | 11,984 footnote F1 | $0.00 | - | |
| Gregory W. Matz | Open-market sale | Common Stock | 8,000 footnote F3 | $17.52 | $140K | |
| ||||||
| Michael J. Dumont | Grant or award | Common Stock | 11,984 footnote F1 | $0.00 | - | |
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| Mitchell H. Herbets | Grant or award | Common Stock | 11,984 footnote F1 | $0.00 | - | |
| Mitchell H. Herbets | Open-market sale | Common Stock | 5,000 footnote F3 | $17.62 | $88K | |
| ||||||
| Michael Knowles - Officer | Grant or award | Common Stock | 0 | $0.00 | - | |
| James Ison - Officer | Grant or award | Common Stock | 34,313 footnote F1 | $0.00 | - | |
| James Ison - Officer | Tax withholding / forfeiture | Common Stock | 6,546 footnote F3 | $9.24 | $60K | |
| James Ison - Officer | Gift | Common Stock | 8,213 footnote F5 | $0.00 | - | |
| James Ison - Officer | Gift | Common Stock | 8,213 | $0.00 | - | |
| James Ison - Officer | Tax withholding / forfeiture | Common Stock | 3,120 footnote F7 | $8.70 | $27K | |
| James Ison - Officer | Gift | Common Stock | 4,263 footnote F9 | $0.00 | - | |
| James Ison - Officer | Gift | Common Stock | 4,263 | $0.00 | - | |
| ||||||
| Daniel G. Gabel - Officer | Tax withholding / forfeiture | Common Stock | 7,799 footnote F1 | $9.24 | $72K | |
| ||||||
| Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 13,298 footnote F1 | $9.24 | $123K | |
| Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 6,650 footnote F3 | $8.70 | $58K | |
| ||||||
| Daniel G. Gabel - Officer | Grant or award | Common Stock | 55,239 footnote F1 | $0.00 | - | |
| ||||||
| Michael Knowles - Officer | Grant or award | Common Stock | 101,862 footnote F1 | $0.00 | - | |
| ||||||
| Daniel G. Gabel - Officer | Tax withholding / forfeiture | Common Stock | 3,215 footnote F1 | $7.18 | $23K | |
| ||||||
| Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 19,075 | $7.18 | $137K | |
| Michael Knowles - Officer | Grant or award | Common Stock | 131,448 | $4.06 | $534K | |
| Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 16,800 | $3.76 | $63K | |
| Michael Knowles - Officer | Grant or award | Common Stock | 21,000 | $0.00 | - | |
| Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 19,075 | $3.06 | $58K | |
| Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 8,359 | $5.26 | $44K | |
| James Ison - Officer | Tax withholding / forfeiture | Common Stock | 3,113 | $5.26 | $16K | |
| James Ison - Officer | Gift | Common Stock | 4,271 | $0.00 | - | |
| James Ison - Officer | Gift | Common Stock | 4,271 | $0.00 | - | |
| Michael Knowles - Officer | Tax withholding / forfeiture | Common Stock | 17,525 | $2.41 | $42K | |
| Daniel G. Gabel - Officer | Grant or award | Common Stock | 40,000 | $0.00 | - | |
Item 1.01, 5.02, 9.01
Item 5.02, 5.07, 9.01
Item 2.02, 7.01
Item 7.01
Recent OSS Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - |
OSS insider trading FAQ
What is the latest insider trade for OSS?
ONE STOP SYSTEMS, INC. (OSS) had 2 insider filings in the last 90 days, with the most recent on 2026-09-04. The full record for OSS runs to 21 Form 4 filings, the earliest from 2024-11-12. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying OSS stock?
No insider purchases of OSS were filed in the last 90 days.
How many insiders are selling OSS stock?
No insider sales of OSS were filed in the last 90 days. 3 sales are on record for this company.
Where can I see OSS SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects OSS Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Information Technology companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Michael Knowles view on EDGAR
- - Daniel G. Gabel view on EDGAR
- - Michael Knowles view on EDGAR
- - Daniel G. Gabel view on EDGAR
- - David George Bassett view on EDGAR
- - Gregory W. Matz view on EDGAR
- - Michael J. Dumont view on EDGAR
- - Mitchell H. Herbets view on EDGAR
- - Michael Knowles view on EDGAR
Related companies with recent insider activity
Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Information Technology
- Where OSS's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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