Grid Dynamics officer proposes $63.8K share sale

The past-sales section records transactions on dates from August 13 through October 30, 2026.

Available on EDGAR 11/03/2026 - 04:22 PM EST Accepted by SEC EDGAR 11/03/2026 - 04:21 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Grid Dynamics Holdings, Inc. officer Yury Gryzlov gave notice of a proposed sale of 4,710 common shares for an aggregate market value of $63,820.50, with an approximate sale date of November 3, 2026, through Morgan Stanley Smith Barney LLC. The securities table lists 2,520 restricted shares dated February 4, 2024, and 2,190 dated November 4, 2022.

Key Figures

Proposed sale: 4,710 common shares Aggregate market value: $63,820.50 Shares outstanding: 80,370,132 shares +2 more

5 metrics

Proposed sale 4,710 common shares Approximate sale date November 3, 2026

Aggregate market value $63,820.50 Proposed sale

Shares outstanding 80,370,132 shares Securities information

Restricted shares 2,520 shares Dated February 4, 2024; listed among securities to be sold

Restricted shares 2,190 shares Dated November 4, 2022; listed among securities to be sold

Key Terms

Rule 144, Restricted Stock, Securities To Be Sold

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock financial

"Common | 02/04/2024 | Restricted Stock"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Securities To Be Sold financial

"144: Securities To Be Sold"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many GDYN shares did Yury Gryzlov plan to sell?

The notice lists a proposed sale of 4,710 common shares with an aggregate market value of $63,820.50 and an approximate sale date of November 3, 2026.

What prior GDYN share sales did Yury Gryzlov report?

The past-sales section lists 10,512 shares on October 30, 2026; 4,849 on October 8; 1,245 on October 2; 3,918 on September 3; 467 on August 18; and 3,930 on August 13, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001805673
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	GRID DYNAMICS HOLDINGS, INC.
SEC File Number	001-38685
Address of Issuer	6101 Bollinger Canyon Road, Suite 465 San Ramon CALIFORNIA 94583
Phone	(650) 523-5000
Name of Person for Whose Account the Securities are To Be Sold	YURY GRYZLOV
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	4710	63820.50	80370132	11/03/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/04/2024	Restricted Stock	ISSUER			2520	02/04/2024	Not Applicable
Common	11/04/2022	Restricted Stock	ISSUER			2190	11/04/2022	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
YURY GRYZLOV 6101 Bollinger Canyon Road, Suite 465 San Ramon CA 94583	Common	10/30/2026	10512	110481.12
YURY GRYZLOV 6101 Bollinger Canyon Road, Suite 465 San Ramon CA 94583	Common	10/08/2026	4849	38792.00
YURY GRYZLOV 6101 Bollinger Canyon Road, Suite 465 San Ramon CA 94583	Common	10/02/2026	1245	10532.70
YURY GRYZLOV 6101 Bollinger Canyon Road, Suite 465 San Ramon CA 94583	Common	09/03/2026	3918	31344.00
YURY GRYZLOV 6101 Bollinger Canyon Road, Suite 465 San Ramon CA 94583	Common	08/18/2026	467	3516.51
YURY GRYZLOV 6101 Bollinger Canyon Road, Suite 465 San Ramon CA 94583	Common	08/13/2026	3930	31440.00

144: Remarks and Signature

Remarks
Date of Notice	11/03/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/13/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Yury Gryzlov
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)