ONE STOP SYSTEMS, INC. — Director's Dealing 2021

May 21, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ONE STOP SYSTEMS, INC. (OSS)
CIK: 0001394056
Period of Report: 2021-05-19

Reporting Person: Harrison Jack (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-19	Common Stock	A	8666	$0.00	Acquired	39117	Direct

Footnotes

F1: Represents 8,666 restricted stock units awarded to the Reporting Person under the Issuer's 2017 Equity Incentive Plan, as amended (the "Plan"), in connection with the Reporting Person's service as a director of the Issuer, certain of which restricted stock units are subject to vesting conditions.

F2: The Reporting Person beneficially owns the total number of shares reported in this column both directly, as well as indirectly through Jacoma Investments, LLC as the sole manager of Jacoma Investments, LLC.