InsiderTrades

Form 4 for OSS ONE STOP SYSTEMS, INC.

Accepted 2026-01-07 00:00:00 ET · period of report 2025-12-31 · accession 0001193125-26-006144 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
2026-01-07 2025-12-31 OSS KNOWLES MICHAEL CEO, Dir F - Tax $7.18 -19.1K 566.1K -3% -$137.0K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-12-31 F D 19,075 $7.18 566,144 D — — (F1) The Reporting Person forfeited 19,075 shares of common stock upon conversion of an aggregate 50,000 vested and outstanding restricted stock units into shares of common stock to cover tax withholdings, using the market price of the issuer's common stock at the time of forfeiture. These restricted stock units were part of the grant reported in Table I of the Form 4 filed by the Reporting Person with the Securities and Exchange Commission on June 6, 2023. (F2) Includes 368,173 unvested restricted stock units held by the Reporting Person, all of which remain subject to certain vesting conditions.