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).
	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* Beijing Teamsun Technology Co. Ltd. (Last) (First) (Middle) ROOM 501, 5/F, NO. 23 BUILDING 10 E. BLOCK XIBEIWANG EAST RD. (Street) HAIDIAN DISTRICT, BEIJING F4 0000 (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) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 09/12/2024
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X 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	09/12/2024		S(1)		913,387	D	$12.8	13,889,183(2)(3)	I(2)(3)	See footnote(2)(3)

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

1. Name and Address of Reporting Person* Beijing Teamsun Technology Co. Ltd. (Last) (First) (Middle) ROOM 501, 5/F, NO. 23 BUILDING 10 E. BLOCK XIBEIWANG EAST RD. (Street) HAIDIAN DISTRICT, BEIJING F4 0000 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Teamsun Technology (HK) Ltd (Last) (First) (Middle) 15/F., TOPSAIL PLAZA 11 ON SUM STREET (Street) SHATIN K3 00000 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Automated Systems Holdings Ltd (Last) (First) (Middle) 15/F., TOPSAIL PLAZA 11 ON SUM STREET (Street) SHATIN K3 00000 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* GDB International Investment Ltd (Last) (First) (Middle) 15/F., TOPSAIL PLAZA 11 ON SUM STREET (Street) SHATIN K3 00000 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* GDD International Holding Co (Last) (First) (Middle) 15/F., TOPSAIL PLAZA 11 ON SUM STREET (Street) SHATIN K3 00000 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. On September 12, 2024, GDD International Holding Company ("GDD") executed a block trade under Rule 144 pursuant to which an aggregate of 913,387 shares of common stock, par value $0.0001 per share, of Grid Dynamics Holdings, Inc. were sold for $12.80 per share.

2. These securities are directly held by GDD, which is a wholly-owned subsidiary of GDB International Investment Limited, which is a wholly-owned subsidiary of Automated Systems Holdings Limited, which is a subsidiary controlled by Teamsun Technology (HK) Limited, which is a wholly-owned subsidiary of Beijing Teamsun Technology Co., Ltd. (collectively, the "Teamsun Entities").

3. Each of the Teamsun Entities may be deemed to beneficially own the securities directly owned by GDD, although each of the Teamsun Entities (other than GDD) disclaims beneficial ownership of such securities, except to the extent of their respective pecuniary interest therein. Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended, each of the Reporting Persons (other than GDD) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

	BEIJING TEAMSUN TECHNOLOGY CO., LTD., By: /s/ Wang Weihang, Director	09/16/2024
	TEAMSUN TECHNOLOGY (HK) LIMITED By: /s/ Wang Weihang, Director	09/16/2024
	AUTOMATED SYSTEMS HOLDINGS LIMITED By: /s/ Wang Yueou, Director	09/16/2024
	GDB INTERNATIONAL INVESTMENT LIMITED By: /s/ Wang Yueou, Director	09/16/2024
	GDD INTERNATIONAL HOLDING COMPANY By: /s/ Wang Yueou, Director	09/16/2024
	** Signature of Reporting Person	Date
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* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
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