Insider filing report for Changes in Beneficial Ownership
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FORM 3
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
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
Ison Jim
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)
Vice President of Sales
(Last)
(First)
(Middle)
2235 ENTERPRISE STREET #110
3. Date of Earliest Transaction (MM/DD/YY)
01/31/2018
(Street)
ESCONDIDO, CA92029
4. If Amendment, Date Original Filed (MM/DD/YY)
6. Individual or Joint/Group Filing (Check Applicable Line)
__ X __ Form filed by One Reporting Person
_____ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction 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 65,750 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(MM/DD/YY)
7. Title and Amount of Underlying Securities
(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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (right to buy) $ 0.76 ( 1 ) 12/06/2021 Common Stock 3,250 D
Employee Stock Option (right to buy) $ 0.76 ( 2 ) 09/30/2022 Common Stock 40,000 D
Employee Stock Option (right to buy) $ 0.46 ( 2 ) 07/15/2024 Common Stock 50,000 D
Employee Stock Option (right to buy) $ 1.08 ( 3 ) 04/01/2026 Common Stock 25,000 D
Employee Stock Option (right to buy) $ 1.95 ( 4 ) 04/17/2027 Common Stock 20,000 D
Reporting Owners
Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Ison Jim
2235 ENTERPRISE STREET #110
ESCONDIDO, CA92029
Vice President of Sales
Signatures
/s/ Jim Ison 01/31/2018
** Signature of Reporting Person Date
Explanation of Responses:
( 1 )The option is fully vested. The original grant for 30,000 shares was exercised for 26,750 shares on a quarterly basis between September 30, 2014 and September 30, 2017.
( 2 )The option is fully vested.
( 3 )The option is exercisable as it vests. 1/3 of the shares subject to the option vested on April 2, 2017, and 1/12th of the total number of shares subject to the option vest quarterly thereafter, subject to the reporting person's continued service to the issuer through each such vesting date.
( 4 )The option is exercisable as it vests. 1/3 of the shares subject to the option will vest on April 18, 2018, and 1/12th of the total number of shares subject to the option vest quarterly thereafter, subject to the reporting person's continued service to the issuer through each such vesting date.

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 Number.