Grid Dynamics officer plans sale of 467 shares

GRID DYNAMICS HOLDINGS, INC.

Rhea-AI Filing Summary

GRID DYNAMICS HOLDINGS, INC. (GDYN) received a Rule 144 notice from officer Yury Gryzlov regarding a proposed sale of restricted common stock. Gryzlov plans to sell 467 shares of GDYN common stock through Morgan Stanley Smith Barney Executive Financial Services.

The notice also lists prior sales of GDYN common stock by Gryzlov over the past three months, with several small transactions disclosed along with their respective share counts and dollar amounts.

Key Figures

Planned shares to be sold: 467 shares Aggregate market value of planned sale: $3,516.51 Shares outstanding (context): 81,126,881 shares +3 more

6 metrics

Planned shares to be sold 467 shares Common stock under Rule 144 notice

Aggregate market value of planned sale $3,516.51 Value associated with 467 GDYN shares in the notice

Shares outstanding (context) 81,126,881 shares Common stock figure listed alongside Rule 144 securities information

Sale on 08/13/2026 3,930 shares; $31,440.00 Common stock sold during the past 3 months by Yury Gryzlov

Sale on 07/02/2026 1,245 shares; $7,831.05 Common stock sold during the past 3 months by Yury Gryzlov

Sale on 06/01/2026 4,435 shares; $35,480.00 Common stock sold during the past 3 months by Yury Gryzlov

Key Terms

Rule 144, Restricted Stock, aggregate market value

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 | 08/14/2026 | Restricted Stock | Issuer"

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.

aggregate market value financial

"Common | Morgan Stanley ... | 467 | 3516.51 | 81126881"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

What does the Form 144 filing mean for GRID DYNAMICS HOLDINGS, INC. (GDYN)?

The filing indicates that officer Yury Gryzlov has notified of an intended sale of 467 shares of GDYN common stock under Rule 144, a standard disclosure when affiliates plan to sell restricted or control securities.

How many GDYN shares does Yury Gryzlov plan to sell under this Form 144?

Yury Gryzlov plans to sell 467 shares of GRID DYNAMICS HOLDINGS, INC. common stock. The filing lists these as restricted shares to be sold through Morgan Stanley Smith Barney Executive Financial Services under Rule 144 resale provisions.

What is the reported market value of the GDYN shares in the new planned sale?

The Form 144 reports an aggregate market value of $3,516.51 for the planned sale of 467 GDYN shares. This figure reflects the value used for the Rule 144 notice and not necessarily the final sale proceeds.

What GDYN stock sales has Yury Gryzlov made in the past three months?

The notice lists three prior common stock sales: 3,930 shares for $31,440.00 on 08/13/2026, 1,245 shares for $7,831.05 on 07/02/2026, and 4,435 shares for $35,480.00 on 06/01/2026.

When does the new GDYN Rule 144 sale notice by Yury Gryzlov expire?

The Rule 144 notice indicates a date of 08/18/2026 for the planned sale of 467 GDYN shares. Rule 144 notices generally cover a limited period for the proposed disposition of the specified securities.

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

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Available on EDGAR 08/18/2026 - 04:30 PM Accepted by SEC EDGAR 08/18/2026 - 04:29 PM Learn about SEC filing dates

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	467	3516.51	81126881	08/18/2026	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	08/14/2026	Restricted Stock	Issuer			467	08/14/2026	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	08/13/2026	3930	31440.00
YURY GRYZLOV 6101 Bollinger Canyon Road, Suite 465 San Ramon CA 94583	Common	07/02/2026	1245	7831.05
YURY GRYZLOV 6101 Bollinger Canyon Road, Suite 465 San Ramon CA 94583	Common	06/01/2026	4435	35480.00

144: Remarks and Signature

Remarks
Date of Notice	08/18/2026
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)