A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 13 filings in this group are Form 4s for Grid Dynamics Holdings, Inc.
The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.
Across the 13 insider filings shown, the breakdown is 7 tax withholding, 5 open-market sale and 1 gift. 5 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.
Form 4
Open-market sale
Insider Selling
2026-10-08
GDYN insider Gryzlov Yury (CHIEF OPERATING OFFICER) sold 4,849 shares (~$38.8K)
Gryzlov Yury, listed as CHIEF OPERATING OFFICER at GRID DYNAMICS HOLDINGS, INC., reported an open-market sale of 4,849 GDYN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
4,849 |
$8.00 |
$38.8K |
Filing: Form 4 (Insider Transaction)
Insider: Gryzlov Yury (CHIEF OPERATING OFFICER)
Shares: 4,849
Est. Value: $38.8K
Form 4
Open-market sale
Insider Selling
2026-10-05
GDYN insider Gryzlov Yury (CHIEF OPERATING OFFICER) sold 1,245 shares (~$10.5K)
Gryzlov Yury, listed as CHIEF OPERATING OFFICER at GRID DYNAMICS HOLDINGS, INC., reported an open-market sale of 1,245 GDYN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
1,245 |
$8.46 |
$10.5K |
Filing: Form 4 (Insider Transaction)
Insider: Gryzlov Yury (CHIEF OPERATING OFFICER)
Shares: 1,245
Est. Value: $10.5K
Form 4
Tax withholding
Tax / Compensation Filing
2026-10-02
GDYN insider Form 4 filed for equity award, exercise, or tax withholding
Doradla Anil (CHIEF FINANCIAL OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
F |
Tax withholding on vested shares
|
2,111 |
$8.38 |
$17.7K |
Filing: Form 4 (Insider Transaction)
Insider: Doradla Anil (CHIEF FINANCIAL OFFICER)
Shares: 2,111
Form 4
Tax withholding
Tax / Compensation Filing
2026-10-02
GDYN insider Form 4 filed for equity award, exercise, or tax withholding
Gryzlov Yury (CHIEF OPERATING OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
F |
Tax withholding on vested shares
|
1,686 |
$8.38 |
$14.1K |
Filing: Form 4 (Insider Transaction)
Insider: Gryzlov Yury (CHIEF OPERATING OFFICER)
Shares: 1,686
Form 4
Tax withholding
Tax / Compensation Filing
2026-10-02
GDYN insider Form 4 filed for equity award, exercise, or tax withholding
Livschitz Leonard (Director, CHIEF EXECUTIVE OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
F |
Tax withholding on vested shares
|
35,968 |
$8.38 |
$301.4K |
Filing: Form 4 (Insider Transaction)
Insider: Livschitz Leonard (Director, CHIEF EXECUTIVE OFFICER)
Shares: 35,968
Form 4
Open-market sale
Insider Selling
2026-09-03
GDYN insider Gryzlov Yury (CHIEF OPERATING OFFICER) sold 3,918 shares (~$31.3K)
Gryzlov Yury, listed as CHIEF OPERATING OFFICER at GRID DYNAMICS HOLDINGS, INC., reported an open-market sale of 3,918 GDYN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
3,918 |
$8.00 |
$31.3K |
Filing: Form 4 (Insider Transaction)
Insider: Gryzlov Yury (CHIEF OPERATING OFFICER)
Shares: 3,918
Est. Value: $31.3K
Form 4
Tax withholding
Tax / Compensation Filing
2026-08-24
GDYN insider Form 4 filed for equity award, exercise, or tax withholding
Livschitz Leonard (Director, CHIEF EXECUTIVE OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
F |
Tax withholding on vested shares
|
174 |
$7.96 |
$1.4K |
Filing: Form 4 (Insider Transaction)
Insider: Livschitz Leonard (Director, CHIEF EXECUTIVE OFFICER)
Shares: 174
Form 4
Open-market sale
Insider Selling
2026-08-19
GDYN insider Gryzlov Yury (CHIEF OPERATING OFFICER) sold 467 shares (~$3.5K)
Gryzlov Yury, listed as CHIEF OPERATING OFFICER at GRID DYNAMICS HOLDINGS, INC., reported an open-market sale of 467 GDYN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
467 |
$7.53 |
$3.5K |
Filing: Form 4 (Insider Transaction)
Insider: Gryzlov Yury (CHIEF OPERATING OFFICER)
Shares: 467
Est. Value: $3.5K
Form 4
Tax withholding
Tax / Compensation Filing
2026-08-17
GDYN insider Form 4 filed for equity award, exercise, or tax withholding
Livschitz Leonard (Director, CHIEF EXECUTIVE OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
F |
Tax withholding on vested shares
|
252 |
$7.65 |
$1.9K |
Filing: Form 4 (Insider Transaction)
Insider: Livschitz Leonard (Director, CHIEF EXECUTIVE OFFICER)
Shares: 252
Form 4
Tax withholding
Tax / Compensation Filing
2026-08-17
GDYN insider Form 4 filed for equity award, exercise, or tax withholding
Gryzlov Yury (CHIEF OPERATING OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
F |
Tax withholding on vested shares
|
632 |
$7.75 |
$4.9K |
Filing: Form 4 (Insider Transaction)
Insider: Gryzlov Yury (CHIEF OPERATING OFFICER)
Shares: 632
Form 4
Open-market sale
Insider Selling
2026-08-13
GDYN insider Gryzlov Yury (CHIEF OPERATING OFFICER) sold 3,930 shares (~$31.4K)
Gryzlov Yury, listed as CHIEF OPERATING OFFICER at GRID DYNAMICS HOLDINGS, INC., reported an open-market sale of 3,930 GDYN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
3,930 |
$8.00 |
$31.4K |
Filing: Form 4 (Insider Transaction)
Insider: Gryzlov Yury (CHIEF OPERATING OFFICER)
Shares: 3,930
Est. Value: $31.4K
Form 4
Gift
Tax / Compensation Filing
2026-08-10
GDYN insider Form 4 filed for equity award, exercise, or tax withholding
Zhang Shuo (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
G |
Gift
|
5,134 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Zhang Shuo (Director)
Shares: 5,134
Form 4
Tax withholding
Tax / Compensation Filing
2026-07-28
GDYN insider Form 4 filed for equity award, exercise, or tax withholding
Doradla Anil (CHIEF FINANCIAL OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
F |
Tax withholding on vested shares
|
667 |
$6.14 |
$4.1K |
Filing: Form 4 (Insider Transaction)
Insider: Doradla Anil (CHIEF FINANCIAL OFFICER)
Shares: 667