ONE STOP SYSTEMS, INC. — Director's Dealing 2020

Sep 16, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ONE STOP SYSTEMS, INC. (OSS)
CIK: 0001394056
Period of Report: 2020-09-15

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-09-15	Common Stock	F	3123	$2.30	Acquired	63314	Direct
2020-09-15	Common Stock	F	3123	$2.30	Acquired	66437	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-09-15	Restricted Stock Unit	$	M	4164	Disposed		Common Stock (4164)	Direct
2020-09-15	Restricted Stock Unit	$	M	4164	Disposed		Common Stock (4164)	Direct

Footnotes

F1: Represents a "net stock issuance" of vested and outstanding Restricted Stock Units. The reporting person received 3,123 shares of common
stock on the net stock issuance of 4,164 shares of common stock. The reporting person forfeited 1,041 shares of common stock underlying the
vested and outstanding Restricted Stock Units to cover tax withholdings, using the closing stock price on September 14, 2020 of $2.30.

F2: Restricted stock units convert into common stock on a one-for-one basis.

F3: On April 11, 2018, the reporting person was granted 50,000 restricted stock units, vesting as follows: prior to the Initial Vesting Date, the Vested Ratio shall be zero. On the Initial Vesting Date, the Vested Ratio shall be 1/3, provided the Grantee's service has not been terminated prior to the Initial Vesting Date. For each quarter of Grantee service from the Initial Vesting Date until the Vested Ratio equals 1/1, the Vested Ratio shall be increased by 1/12. This Restricted Stock Unit will be fully vested after three (3) years of service. The Initial Vesting Date shall be September 1, 2017 to coincide with Grantee's date of hire.

F4: On July 2, 2018, the reporting person was granted 50,000 restricted stock units, vesting as follows: prior to the Initial Vesting Date, the Vested Ratio shall be zero. On the Initial Vesting Date, the Vested Ratio shall be 1/3, provided the Grantee's service has not been terminated prior to the Initial Vesting Date. For each quarter of Grantee service from the Initial Vesting Date until the Vested Ratio equals 1/1, the Vested Ratio shall be increased by 1/12. This Restricted Stock Unit will be fully vested after three (3) years of service. The Initial Vesting Date shall be September 1, 2017 to coincide with Grantee's date of hire.