Insider files notice to sell 467 shares

Yury Gryzlov filed a Form 144 notifying a proposed sale of common stock and reporting recent dispositions.

Rhea-AI Filing Summary

Yury Gryzlov filed a Form 144 notifying a proposed sale of common stock and reporting recent dispositions.

The filing lists a proposed sale of 467 shares of Restricted Stock dated 05/14/2026 through Morgan Stanley Smith Barney LLC, and reports prior sales of 1,245 shares on 04/02/2026 and 21,266 shares on 03/10/2026.

Insights

Securities Compliance Analyst

Form 144 notifies a proposed resale of restricted common stock and discloses recent dispositions.

Form 144 is a notice used when an affiliate proposes to sell restricted or control securities. The filing here shows a proposed sale of 467 shares dated 05/14/2026 and two completed dispositions on 04/02/2026 and 03/10/2026.

Timing, broker details, and cash‑flow treatment are stated as Morgan Stanley Smith Barney LLC handling the sale; trading execution details and final proceeds depend on subsequent transaction reports.

Key Figures

Proposed sale: 467 shares Prior disposition: 1,245 shares Prior disposition: 21,266 shares +2 more

5 metrics

Proposed sale 467 shares Restricted Stock dated <date>05/14/2026</date>

Prior disposition 1,245 shares Sold on <date>04/02/2026</date>

Prior disposition 21,266 shares Sold on <date>03/10/2026</date>

Proceeds reported (1) $6,897.30 Proceeds linked to 1,245‑share sale on <date>04/02/2026</date>

Proceeds reported (2) $132,319.18 Proceeds linked to 21,266‑share sale on <date>03/10/2026</date>

Key Terms

Form 144, Restricted Stock, Securities To Be Sold

3 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock financial

"Securities To Be Sold | 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.

Securities To Be Sold regulatory

"144: Securities To Be Sold | Common | 05/14/2026"

FAQ

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

What does the GDYN Form 144 filed by Yury Gryzlov report?

It reports a proposed sale of 467 shares of restricted common stock. The notice also discloses prior dispositions of 1,245 shares on 04/02/2026 and 21,266 shares on 03/10/2026, and lists Morgan Stanley Smith Barney LLC as the broker.

Does the Form 144 show completed sales or only a proposed sale for GDYN?

It shows both: a proposed sale of 467 shares dated 05/14/2026 and completed dispositions previously executed. The filing lists completed sales of 1,245 shares and 21,266 shares on the dates provided.

Who is the broker or intermediary named on the GDYN Form 144?

The filing names Morgan Stanley Smith Barney LLC as the broker/dealer handling the securities to be sold. The broker address and handling details appear on the form alongside the proposed sale date of 05/14/2026.

What cash amounts are reported for the prior GDYN dispositions?

The filing shows proceeds associated with prior dispositions: $6,897.30 for the 1,245‑share sale on 04/02/2026 and $132,319.18 for the 21,266‑share sale on 03/10/2026. These amounts are listed on the form.

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

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Accepted by SEC EDGAR 05/15/2026 - 04:16 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	3012.15	85353771	05/15/2026	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	05/14/2026	Restricted Stock	ISSUER			467	05/14/2026	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	04/02/2026	1245	6897.30
YURY GRYZLOV 6101 Bollinger Canyon Road, Suite 465 San Ramon CA 94583	Common	03/10/2026	21266	132319.18

144: Remarks and Signature

Remarks
Date of Notice	05/15/2026
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)