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

Dec 23, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ONE STOP SYSTEMS, INC. (OSS)
CIK: 0001394056
Period of Report: 2021-12-23

Reporting Person: RAUN DAVID (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-12-23	Common Stock	M	68688	—	Acquired	226647	Direct
2021-12-23	Common Stock	F	36096	$4.64	Disposed	190551	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-12-23	Restricted Stock Units	$	M	68688	Disposed		Common Stock (68688)	Direct

Footnotes

F1: Restricted stock units convert into shares of common stock on a one-for-one basis.

F2: The Reporting Person received 68,688 shares of common stock upon vesting of the restricted stock units, as reported in this Form 4. The Reporting Person forfeited 36,096 shares of common stock underlying the vested and outstanding restricted stock units to cover tax withholdings, using the market price of the Issuer's common stock at the time of forfeiture.

F3: The restricted stock units ("RSUs") shall vest over three years, with 1/3 of the RSUs vesting following the one-year anniversary of the date of grant, and the remaining RSUs shall vest in four equal installments, commencing six months after the one-year anniversary of the date of grant and every six months thereafter until fully vested, provided that grantee is still employed on each such vesting date.