Welcome to our dedicated page for One Stop Sys SEC filings (Ticker: OSS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
One Stop Systems, Inc. filings document the company’s rugged edge-computing business, governance, capital structure and material-event disclosures. Its regulatory record includes 8-K reports covering Regulation FD communications, shareholder letters, operating and financial results, material agreements and securities transactions.
OSS proxy materials disclose annual meeting matters, board governance, executive compensation and stockholder voting items. Capital-markets filings and related 8-K disclosures describe common stock offerings, prospectus supplement use under a shelf registration statement, placement-agent arrangements, lock-up agreements and the effect of equity issuances on the company’s capitalization.
KNOWLES MICHAEL reported disposition transactions in this Form 4 filing.
ONE STOP SYSTEMS, INC. CEO Michael Knowles reported a routine tax-related share forfeiture tied to vested equity compensation. He forfeited 19,675 shares of common stock at a value of $16.89 per share to cover tax withholdings when 50,000 vested restricted stock units converted into shares.
After this transaction, he directly holds 607,383 shares of common stock, which includes 333,311 unvested restricted stock units that remain subject to vesting conditions. The filing reflects compensation and tax mechanics rather than an open-market purchase or sale decision.
ONE STOP SYSTEMS, INC. Chief Financial Officer Daniel G. Gabel reported a routine tax-related share forfeiture. On conversion of 5,000 vested restricted stock units into common stock, he forfeited 1,613 shares at $15.68 per share to cover tax withholdings.
After this non-market disposition, he directly holds 153,896 shares of common stock and 127,762 unvested restricted stock units that remain subject to vesting conditions. The filing reflects compensation and tax mechanics rather than an open-market purchase or sale.
ONE STOP SYSTEMS, INC. director David George Bassett reported routine equity compensation and a related tax sale of common stock. On May 20, 2026, he acquired 11,984 restricted stock units under the company’s 2017 Equity Incentive Plan in connection with his board service, which are subject to vesting conditions.
A prior grant of 21,000 restricted stock units from May 21, 2025 recently vested and converted into common shares. To cover tax withholdings, 8,000 of those shares were sold in an open-market transaction at $17.64 per share on May 26, 2026, using the market price at the time of sale.
Following these transactions, Bassett holds 24,984 shares of common stock directly and continues to hold 11,984 unvested restricted stock units that remain subject to vesting requirements. The activity reflects standard director stock awards and associated tax-related share sales rather than discretionary open-market buying.
ONE STOP SYSTEMS, INC. director Gregory W. Matz reported a mix of equity compensation and tax-related selling activity. On May 20, he received 11,984 restricted stock units under the company’s 2017 Equity Incentive Plan, which are subject to vesting conditions. On May 26, he sold 8,000 shares of common stock at $17.52 per share after the conversion of 21,000 vested restricted stock units, with the sale used to cover tax withholdings. Following these transactions, he holds 78,914 shares of common stock, including 11,984 unvested restricted stock units that remain subject to vesting.
Dumont Michael J. reported acquisition or exercise transactions in this Form 4 filing.
ONE STOP SYSTEMS, INC. director Michael J. Dumont received a grant of 11,984 restricted stock units of common stock on May 20, 2026 at no cash cost, as compensation for his service as a director under the company’s 2017 Equity Incentive Plan.
After this grant, Dumont holds 119,833 common-share equivalents, consisting of 107,849 shares of common stock and 11,984 unvested restricted stock units that remain subject to vesting conditions.
ONE STOP SYSTEMS, INC. director Mitchell H. Herbets reported both an equity award and a related share sale. He received 11,984 restricted stock units as compensation for his board service, granted under the company’s 2017 Equity Incentive Plan and subject to vesting conditions.
He then sold 5,000 shares of common stock at $17.62 per share, with the footnotes explaining this sale was made to cover tax withholdings after 21,000 vested restricted stock units were converted into shares. Following these transactions, he directly holds 48,984 shares, consisting of 11,984 unvested restricted stock units and 37,000 shares of common stock.
OSS submitted a Rule 144 notice regarding 5,000 shares of Common Stock tied to restricted stock vesting under a registered plan. The securities vested on 05/21/2026 and the Form 144 was filed on 05/26/2026 through Morgan Stanley Smith Barney LLC.
One Stop Systems, Inc. held its 2026 annual stockholder meeting and obtained approval to expand its equity compensation capacity. Stockholders approved an amendment to the 2017 Equity Incentive Plan increasing the shares of common stock authorized for issuance from 5,000,000 to 7,000,000. The amendment had been previously approved by the Board, subject to stockholder approval, and became effective on May 13, 2026.
At a record date of March 20, 2026, the company had 24,741,191 shares outstanding, and 13,450,598 shares, or about 54.37%, were represented at the meeting, establishing a quorum. Stockholders elected five directors, ratified Haskell & White LLP as independent auditor for 2026, approved the equity plan amendment, and supported executive compensation on a non-binding advisory basis. An adjournment proposal was also approved but ultimately not used.