FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Ison James		 2. Issuer Name and Ticker or Trading Symbol

ONE STOP SYSTEMS, INC. [ OSS ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Chief Sales/Marketing Officer
(Last)          (First)          (Middle)

2235 ENTERPRISE STREET #110		 3. Date of Earliest Transaction (MM/DD/YYYY)

5/17/2022
(Street)

ESCONDIDO, CA 92029
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
 6. Individual or Joint/Group Filing (Check Applicable Line)

_X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 5/17/2022  F(1)  2730 D$4.41 94937 (2)D  
Common Stock 5/17/2022  G  3937 (3)D$0.00 91000 (2)D  
Common Stock 5/17/2022  G  3937 (3)A$0.00 74713 (4)I By Trust (5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)		2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)		8. Price of Derivative Security
(Instr. 5)		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
(1) The Reporting Person forfeited 2,730 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.
(2) Includes 91,000 unvested restricted stock units held by the Reporting Person, all of which remain subject to certain vesting conditions.
(3) On May 17, 2022, the Reporting Person transferred 3,937 shares of common stock to the James J. Ison Jr. & Sha-Marie A Ison TR UA 06 04 2020 James J. Ison Jr. & Sha-Marie A Ison Inter Vivos Revocable Trust (the "Trust"), of which the Reporting Person is trustee. The Reporting Person and members of his immediate family are the sole beneficiaries of the Trust.
(4) The number of shares held by the Trust reflects a revision to correct an error in the Reporting Person's Form 4 filed with the Securities and Exchange Commission on February 11, 2022 (the "Prior Form 4"), in which it was inadvertently reported that 805 shares of common stock were forfeited to cover tax withholdings upon vesting of 2,500 restricted stock units. The correct number of shares of common stock that were forfeited to cover such tax withholdings was 843 shares, as reported in footnote (3) of the Prior Form 4.
(5) These shares are owned directly by the Trust, and indirectly by James Ison as trustee of the Trust.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Ison James
2235 ENTERPRISE STREET #110
ESCONDIDO, CA 92029

Chief Sales/Marketing Officer
Signatures
/s/ James Ison5/19/2022
**Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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