One Stop Systems (OSS) awards CEO 101,862 restricted stock units

Rhea-AI Filing Summary

One Stop Systems, Inc. reported that its Chief Executive Officer and director, Michael Knowles, received an equity award in the form of restricted stock units. On 02/07/2026, he was granted 101,862 restricted stock units under the company’s 2017 Equity Incentive Plan for his ongoing executive service.

These units were recorded at a price of $0 per share, reflecting a compensatory grant rather than an open‑market purchase. After this grant, Knowles beneficially owned 668,006 shares of common stock, including 470,035 unvested restricted stock units that remain subject to vesting conditions.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

KNOWLES MICHAEL

(Last) (First) (Middle)

2235 ENTERPRISE STREET, SUITE 110

(Street)

ESCONDIDO CA 92029

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ONE STOP SYSTEMS, INC. [ OSS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/07/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

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. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	02/07/2026		A		101,862(1)	A	$0	668,006(2)	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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. 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: 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

Explanation of Responses:

1. Represents 101,862 restricted stock units granted to the Reporting Person under the Company's 2017 Equity Incentive Plan (the "Plan") in connection with the Reporting Person's ongoing service of the executive management team.

2. Includes 470,035 unvested restriced stock units held by the Reporting Person, all of which remain subject to certain vesting conditions.

	/s/ Michael Knowles	02/10/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What did OSS disclose about its CEO’s equity award in this Form 4?

The filing shows OSS Chief Executive Officer Michael Knowles received 101,862 restricted stock units on 02/07/2026. These RSUs were granted under the 2017 Equity Incentive Plan as compensation for his continued service on the executive management team.

How many ONE STOP SYSTEMS (OSS) shares does the CEO own after this transaction?

Following the reported grant, CEO Michael Knowles beneficially owned 668,006 shares of OSS common stock. This total includes both already vested holdings and a substantial number of unvested restricted stock units that remain subject to vesting conditions.

What is the nature of the 101,862 shares reported in the OSS Form 4?

The 101,862 shares reported are restricted stock units, not open-market purchases. They were granted at a stated price of $0 per share as equity compensation to Michael Knowles under ONE STOP SYSTEMS’ 2017 Equity Incentive Plan.

How many unvested restricted stock units does the OSS CEO hold?

Michael Knowles holds 470,035 unvested restricted stock units after the grant. All of these unvested RSUs are still subject to specified vesting conditions, meaning they will only convert into shares over time as those conditions are met.

Is the OSS CEO’s ownership recorded as direct or indirect in this Form 4?

The filing classifies Michael Knowles’ beneficial ownership as direct (D). The reported 668,006 shares, including the newly granted restricted stock units, are held directly by him rather than through a separate trust, partnership, or similar entity.

Under which plan were the OSS CEO’s restricted stock units granted?

The 101,862 restricted stock units were granted under ONE STOP SYSTEMS’ 2017 Equity Incentive Plan. This plan provides equity-based awards to executives and other participants, aligning their compensation with the company’s common stock over time.