StockCIK 1743725
GRID DYNAMICS HOLDINGS, INC. (GDYN): Insider Trades and Fund Holdings
In the past 12 months, GRID DYNAMICS HOLDINGS, INC. insiders reported 0 open-market purchases worth $0 and 5 sales worth $116K; 5 of the sales were reported as made under a 10b5-1 trading plan.
0Insider buys, 12 months
$0Bought by insiders, 12 months
$116KSold by insiders, 12 months
1Tracked funds holding
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 8, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 8 | Yury GryzlovCOO | ▼ SELL10b5-1 | $39K |
| Oct 5 | Yury GryzlovCOO | ▼ SELL10b5-1 | $11K |
| Sep 3 | Yury GryzlovCOO | ▼ SELL10b5-1 | $31K |
| Aug 19 | Yury GryzlovCOO | ▼ SELL10b5-1 | $4K |
| Aug 13 | Yury GryzlovCOO | ▼ SELL10b5-1 | $31K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Yury Gryzlov | COO | 0 | $0 | 5 | $116K |
Tracked funds that report GDYN
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Renaissance Technologies | 59,000 | $335K | ▲ +78.8% |
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →