[Form 4] GRID DYNAMICS HOLDINGS, INC. Insider Trading Activity

Rhea-AI Filing Summary

Grid Dynamics Holdings, Inc. chief executive officer and director Leonard Livschitz reported a planned stock sale. On January 20, 2026, he sold 10,000 shares of common stock at $9 per share, coded as an open-market sale. The shares were sold under a Rule 10b5-1 trading plan that he adopted on August 4, 2025, meaning the trades were pre-arranged rather than timed at his discretion.

After this transaction, Livschitz directly beneficially owns 3,124,343 shares of Grid Dynamics common stock. He also indirectly beneficially owns 12,860 shares, which are held by his spouse.

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

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^*

Livschitz Leonard

(Last) (First) (Middle)

C/O GRID DYNAMICS HOLDINGS, INC.

6101 BOLLINGER CANYON ROAD, SUITE 465

(Street)

SAN RAMON CA 94583

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
GRID DYNAMICS HOLDINGS, INC. [ GDYN ]

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)
01/20/2026

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	01/20/2026		S		10,000(1)	D	$9	3,124,343	D
Common Stock								12,860	I	See footnote(2)

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. These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 4, 2025.

2. The shares are held by the Reporting Person's spouse.

	/s/Anil Doradla, by power of attorney	01/21/2026
	** Signature of Reporting Person	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.

FAQ

What insider transaction did Grid Dynamics (GDYN) report for its CEO?

Grid Dynamics CEO and director Leonard Livschitz reported selling 10,000 shares of the company’s common stock on January 20, 2026, in an open-market sale.

At what price did the GDYN CEO sell his shares on January 20, 2026?

Leonard Livschitz sold 10,000 shares of Grid Dynamics common stock at a price of $9 per share on January 20, 2026.

Was the Grid Dynamics CEO’s January 2026 stock sale under a Rule 10b5-1 plan?

Yes. The filing states the 10,000-share sale was made under a Rule 10b5-1 trading plan adopted by Leonard Livschitz on August 4, 2025.

How many Grid Dynamics (GDYN) shares does the CEO own after this transaction?

Following the reported sale, Leonard Livschitz beneficially owns 3,124,343 shares of Grid Dynamics common stock directly, and 12,860 shares indirectly through his spouse.

Does the Grid Dynamics CEO have any indirect holdings reported in this filing?

Yes. The filing notes that 12,860 shares of Grid Dynamics common stock are held indirectly through Livschitz’s spouse.

Does this GDYN Form 4 report any derivative securities transactions?

No derivative securities transactions are listed. The reported activity involves common stock only, with no options or other derivatives shown.