SEC Form 4
Grid Dynamics Holdings, Inc. (GDYN) insider trading
In the 12 months to Oct 23, 2026, 4 GDYN insiders reported open-market sales of $1.2M across 21 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $1.2M
- 21 filings · 4 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 19 of 21
- $928.7K of $1.2M sold (77%)
Who traded GDYN, and when
- Sale
- Sale, pre-arranged (10b5-1)
GDYN daily close from Oct 23, 2025 to Oct 23, 2026, between $5.21 and $10.06, last $8.49. 21 sale and 0 purchase filings by 4 insiders, marked at their filing dates. Leonard Livschitz, CHIEF EXECUTIVE OFFICER: sold $557.3K across 6 filings, first filed Nov 4, 2025, last Jan 21, 2026. Yury Gryzlov, CHIEF OPERATING OFFICER: sold $549.3K across 12 filings, first filed Nov 4, 2025, last Oct 8, 2026. Anil Doradla, CHIEF FINANCIAL OFFICER: sold $63.7K across 2 filings, first filed Dec 11, 2025, last Jan 8, 2026. Shuo Zhang, Director: sold $29.3K across 1 filing, first filed Dec 17, 2025, last Dec 17, 2025.
Largest mark · tap a row for others
Yury Gryzlov · CHIEF OPERATING OFFICER
Sale $241,500
25,000 shares at $9.66 avg
Filed Dec 9, 2025 · traded Dec 5
Close on filing date $9.71
Leonard Livschitz · CHIEF EXECUTIVE OFFICER
CHIEF EXECUTIVE OFFICER
$557.3K soldYury Gryzlov · CHIEF OPERATING OFFICER
CHIEF OPERATING OFFICER
$549.3K soldAnil Doradla · CHIEF FINANCIAL OFFICER
CHIEF FINANCIAL OFFICER
$63.7K soldShuo Zhang · Director
Director
$29.3K soldHas Grid Dynamics Holdings, Inc.'s CEO sold stock?
Yes. Leonard Livschitz (CEO) sold 60,000 shares ($557.3K) between Nov 2025 and Jan 2026, all under a pre-arranged 10b5-1 plan.
Open-market trades
21 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Leonard Livschitz | CHIEF EXECUTIVE OFFICER | $557.3K | — | 6 | 100% of sales | |
| Yury Gryzlov | CHIEF OPERATING OFFICER | $549.3K | — | 12 | 56% of sales | |
| Anil Doradla | CHIEF FINANCIAL OFFICER | $63.7K | — | 2 | 100% of sales | |
| Shuo Zhang | Director | $29.3K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 4,849 | $8.00 | $38.8K | 495,290 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 1,245 | $8.46 | $10.5K | 500,139 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 3,918 | $8.00 | $31.3K | 503,070 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 467 | $7.53 | $3.5K | 506,988 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 3,930 | $8.00 | $31.4K | 508,087 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 1,245 | $6.29 | $7.8K | 512,017 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 4,435 | $8.00 | $35.5K | 514,948 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 467 | $6.45 | $3.0K | 519,383 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 1,245 | $5.54 | $6.9K | 520,482 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 21,266 | $6.22 | $132.3K | 523,413 | |
traded | Leonard Livschitz CHIEF EXECUTIVE OFFICER | SalePre-arranged (10b5-1) | 10,000 | $9.00 | $90.0K | 3,124,343 | |
traded | Leonard Livschitz CHIEF EXECUTIVE OFFICER | SalePre-arranged (10b5-1) | 10,000 | $9.70 | $97.0K | 3,134,343 | |
traded | Anil Doradla CHIEF FINANCIAL OFFICER | SalePre-arranged (10b5-1) | 2,000 | $10.00 | $20.0K | 376,475 | |
traded | Leonard Livschitz CHIEF EXECUTIVE OFFICER | SalePre-arranged (10b5-1) | 10,000 | $9.33 | $93.3K | 2,821,378 | |
traded | Shuo Zhang Director | Sale | 3,000 | $9.75 | $29.3K | 92,515 | |
traded | Anil Doradla CHIEF FINANCIAL OFFICER | SalePre-arranged (10b5-1) | 4,368 | $10.00 | $43.7K | 344,852 | |
traded | Leonard Livschitz CHIEF EXECUTIVE OFFICER | SalePre-arranged (10b5-1) | 10,000 | $9.70 | $97.0K | 2,831,378 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | Sale | 25,000 | $9.66 | $241.5K | 440,289 | |
traded | Leonard Livschitz CHIEF EXECUTIVE OFFICER | SalePre-arranged (10b5-1) | 10,000 | $9.00 | $90.0K | 2,841,378 | |
traded | Leonard Livschitz CHIEF EXECUTIVE OFFICER | SalePre-arranged (10b5-1) | 10,000 | $9.00 | $90.0K | 2,851,378 | |
traded | Yury Gryzlov CHIEF OPERATING OFFICER | SalePre-arranged (10b5-1) | 737 | $9.00 | $6.6K | 465,289 |
GET /stocks/filings/vX/form-4?tickers=GDYN&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"GDYN"
],
"issuer_cik": "0001743725",
"owner_cik": "0001805673",
"accession_number": "0001628280-26-065478",
"form_type": "4",
"filing_date": "2026-10-08",
"period_of_report": "2026-10-08",
"issuer_name": "GRID DYNAMICS HOLDINGS, INC.",
"issuer_trading_symbol": "GDYN",
"owner_name": "Gryzlov Yury",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CHIEF OPERATING OFFICER",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-08",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 4849,
"transaction_price_per_share": 8,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 495290,
"transaction_value": 38792,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 13, 2025."
}
]
},
{
"tickers": [
"GDYN"
],
"issuer_cik": "0001743725",
"owner_cik": "0001805673",
"accession_number": "0001628280-26-065010",
"form_type": "4",
"filing_date": "2026-10-05",
"period_of_report": "2026-10-02",
"issuer_name": "GRID DYNAMICS HOLDINGS, INC.",
"issuer_trading_symbol": "GDYN",
"owner_name": "Gryzlov Yury",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CHIEF OPERATING OFFICER",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-02",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1245,
"transaction_price_per_share": 8.46,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 500139,
"transaction_value": 10532.7,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 13, 2025."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 54 records
- Tax withholding31 records
- Grants and awards22 records
- Gifts1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for GDYN every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.