ONE STOP SYSTEMS, INC. — Director's Dealing 2026

Mar 2, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ONE STOP SYSTEMS, INC. (OSS)
CIK: 0001394056
Period of Report: 2026-02-07

Reporting Person: Gabel Daniel G. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-07	Common Stock	F	7799	$9.24	Disposed	155509	Direct

Footnotes

F1: The Reporting Person forfeited 7,799 shares of common stock upon conversion of an aggregate 23,761vested 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 February 7, 2025.

F2: Includes 132,762 unvested restricted stock units held by the Reporting Person, all of which remain subject to certain vesting conditions.