Lloyd Carney - 23 Dec 2025 Form 4/A - Amendment Insider Report for GRID DYNAMICS HOLDINGS, INC. (GDYN)

Reporting relationship: Director
Issuer ticker: GDYN
Reported as of: 23 Dec 2025
Net transaction value: $0
SEC form: 4/A - Amendment
Accepted by SEC: 26 May 2026, 16:11:46 UTC
Original report date: 29 Dec 2025
Prior SEC filing: 20 Nov 2025
Next SEC filing: 28 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Anil Doradla, by power of attorney

Key filing fact

Lloyd Carney filed Form 4/A - Amendment for GRID DYNAMICS HOLDINGS, INC. (GDYN) on 26 May 2026.

Key facts

This page summarizes Lloyd Carney's Form 4/A - Amendment filing for GRID DYNAMICS HOLDINGS, INC. (GDYN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 26 May 2026, 16:11.

Change

Previous filing in this sequence was filed on 20 Nov 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0001204424 Primary reporting owner

CARNEY LLOYD

Relationship: Director
Address: C/O GRID DYNAMICS HOLDINGS, INC., 6101 BOLLINGER CANYON ROAD, SUITE 465, SAN RAMON
Signature: /s/ Anil Doradla, by power of attorney
Signature date: 26 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GDYN transaction

Common Stock

Award

Transaction value
Shares: +2,309
Change %: +0.33%
Price: $0.000000^*
Shares after: 692,286
Date: 23 Dec 2025
Ownership: Direct
Footnotes: F1, F2

GDYN holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 12,542
Date: 23 Dec 2025
Ownership: See footnote
Footnotes: F3

GDYN holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 5,200
Date: 23 Dec 2025
Ownership: See footnote
Footnotes: F4

GDYN holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 288,800
Date: 23 Dec 2025
Ownership: See footnote
Footnotes: F5

GDYN holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 19,675
Date: 23 Dec 2025
Ownership: See footnote
Footnotes: F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

The initial Form 4, filed on December 29, 2025, is being amended by this Form 4 amendment to correct an administrative error, which misreported the number of RSUs awarded.

Footnote F2

These securities are RSUs, each of which represents a contingent right to receive one share of Common Stock. The RSUs shall vest on March 23, 2026, subject to the Reporting Person continuing as a service provider in the same Grid Dynamics Holdings, Inc. board of directors and (if applicable) board committee roles through such date.

Footnote F3

The shares are held by The Lloyd A. Carney Revocable Trust dated September 25, 1995.

Footnote F4

The shares are held by The Lloyd Carney Foundation (the "Foundation"). The Foundation is a 501(c)(3) charitable organization controlled by the Reporting Person.

Footnote F5

The shares are held by the Lloyd Carney 2018 Grantor Retained Annuity Trust.

Footnote F6

The shares are held by the Lloyd Carney 2020 Grantor Retained Annuity Trust.