OSS insider transaction filings
ONE STOP SYSTEMS, INC. — 22 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-06-12. Screen OSS transaction legs live →
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-12 | 4 | KNOWLES MICHAEL — Chief Executive Officer, Director | Tax withholding (F): 19,675 @ $16.89 | EDGAR |
| 2026-05-28 | 4 | Gabel Daniel G. — Chief Financial Officer | Tax withholding (F): 1,613 @ $15.68 | EDGAR |
| 2026-05-26 | 4 | BASSETT DAVID GEORGE — Director | Grant/award (A): 21,000 @ $0 · Grant/award (A): 11,984 @ $0 · Sale (S): 8,000 @ $17.64 | EDGAR |
| 2026-05-26 | 4 | Matz Gregory W — Director | Grant/award (A): 11,984 @ $0 · Sale (S): 8,000 @ $17.52 | EDGAR |
| 2026-05-26 | 4 | Dumont Michael J. — Director | Grant/award (A): 11,984 @ $0 | EDGAR |
| 2026-05-26 | 4 | Herbets Mitchell H — Director | Grant/award (A): 11,984 @ $0 · Sale (S): 5,000 @ $17.62 | EDGAR |
| 2026-03-27 | 4/A | KNOWLES MICHAEL — Chief Executive Officer, Director | Grant/award (A): 0 @ $0 | EDGAR |
| 2026-03-02 | 4 | Gabel Daniel G. — Chief Financial Officer | Tax withholding (F): 7,799 @ $9.24 | EDGAR |
| 2026-03-02 | 4 | KNOWLES MICHAEL — Chief Executive Officer, Director | Tax withholding (F): 13,298 @ $9.24 · Tax withholding (F): 6,650 @ $8.70 | EDGAR |
| 2026-03-02 | 4 | Ison James — CPO | Grant/award (A): 34,313 @ $0 · Tax withholding (F): 6,546 @ $9.24 · Gift (G): 8,213 @ $0 · Gift (G): 8,213 @ $0 · Tax withholding (F): 3,120 @ $8.70 · Gift (G): 4,263 @ $0 · +1 more | EDGAR |
| 2026-02-11 | 4 | Gabel Daniel G. — Chief Financial Officer | Grant/award (A): 55,239 @ $0 | EDGAR |
| 2026-02-11 | 4 | KNOWLES MICHAEL — Chief Executive Officer, Director | Grant/award (A): 101,862 @ $0 | EDGAR |
| 2026-01-12 | 4 | Gabel Daniel G. — Chief Financial Officer | Tax withholding (F): 3,215 @ $7.18 | EDGAR |
| 2026-01-07 | 4 | KNOWLES MICHAEL — Chief Executive Officer, Director | Tax withholding (F): 19,075 @ $7.18 | EDGAR |
| 2025-09-02 | 4 | KNOWLES MICHAEL — Chief Executive Officer, Director | Grant/award (A): 131,448 @ $4.06 · Tax withholding (F): 16,800 @ $3.76 · Grant/award (A): 21,000 @ $0 · Tax withholding (F): 19,075 @ $3.06 · Tax withholding (F): 8,359 @ $5.26 | EDGAR |
| 2025-08-25 | 4 | Ison James — CPO | Tax withholding (F): 3,113 @ $5.26 · Gift (G): 4,271 @ $0 · Gift (G): 4,271 @ $0 | EDGAR |
| 2025-05-28 | 4 | Herbets Mitchell H — Director | Grant/award (A): 21,000 @ $0 | EDGAR |
| 2025-05-27 | 4 | Dumont Michael J. — Director | Tax withholding (F): 21,000 @ $0 | EDGAR |
| 2025-05-23 | 4 | Matz Gregory W — Director | Grant/award (A): 21,000 @ $0 | EDGAR |
| 2025-03-13 | 4 | Ison James — CPO | Tax withholding (F): 7,006 @ $3.76 · Gift (G): 7,760 @ $0 · Gift (G): 7,760 @ $0 | EDGAR |
| 2025-03-05 | 4 | Gabel Daniel G. — Chief Financial Officer | Grant/award (A): 71,284 @ $4.06 | EDGAR |
| 2025-02-24 | 4 | Ison James — CPO | Grant/award (A): 44,279 @ $4.06 | EDGAR |
Recent 8-K events — ONE STOP SYSTEMS, INC.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-05 | 8-K | 1.01 — Entry into a Material Definitive Agreement 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-19 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 5.07 — Submission of Matters to a Vote of Security Holders 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-08 | 8-K | 2.02 — Results of Operations and Financial Condition 7.01 — Regulation FD Disclosure | EDGAR |
| 2026-04-15 | 8-K | 7.01 — Regulation FD Disclosure | EDGAR |
| 2026-01-06 | 8-K | 1.01 — Entry into a Material Definitive Agreement 2.01 — Completion of Acquisition or Disposition of Assets 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-10-01 | 8-K | 1.01 — Entry into a Material Definitive Agreement 7.01 — Regulation FD Disclosure | EDGAR |
| 2025-05-20 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2025-05-09 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers | EDGAR |
| 2025-04-21 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers | EDGAR |
| 2025-04-15 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year | EDGAR |
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