ONE STOP SYSTEMS, INC. — Director's Dealing 2023

May 24, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ONE STOP SYSTEMS, INC. (OSS)
CIK: 0001394056
Period of Report: 2023-05-22

Reporting Person: Morrison John W Jr. (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-22	Common Stock	F	1232	$2.48	Disposed	272585	Direct
2023-05-22	Common Stock	F	2463	$2.44	Disposed	270122	Direct

Footnotes

F1: The Reporting Person forfeited 1,232 shares of common stock upon conversion of 3,333 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 May 21, 2021.

F2: Includes 156,668 unvested restricted stock units held by the Reporting Person, all of which remain subject to certain vesting conditions.

F3: The Reporting Person forfeited 2,463 shares of common stock upon conversion of 6,667 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 May 21, 2021.

F4: Includes 150,001 unvested restricted stock units held by the Reporting Person, all of which remain subject to certain vesting conditions.