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Grid Dynamics Holdings stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+49.9% to $13.10
Grid Dynamics Holdings (GDYN) stock rose 50% over the last 252 sessions, to $13.10. On the way it reported 4 quarters, its insiders filed 2 open-market trades and 11 Form 144 notices of planned sales, and the company filed 2 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 6, 2026 | Form 144 | Form 144: BGV Opportunity Fund, L.P. plans to sell $666K | −3.3% (−3.6% vs SPY) | — | — |
| Nov 6, 2026 | Form 144 | Form 144: Lloyd Carney plans to sell $697K | −3.3% (−3.6% vs SPY) | — | — |
| Nov 5, 2026 | Form 144 | Form 144: Lloyd A Carney plans to sell $203K | −1.5% (+3.0% vs SPY) | — | — |
| Nov 3, 2026 | Form 144 | Form 144: Yury Gryzlov plans to sell $64K | −2.4% (−2.7% vs SPY) | — | — |
| Oct 30, 2026 | Form 144 | Form 144: Yury Gryzlov plans to sell $110K | +34.2% (+36.0% vs SPY) | +35.5% (+40.4% vs SPY) | — |
| Oct 30, 2026 | Form 144 | Form 144: Anil Kumar Doradla plans to sell $210K | +34.2% (+36.0% vs SPY) | +35.5% (+40.4% vs SPY) | — |
| Oct 30, 2026 | Form 144 | Form 144: Leonard Livschitz plans to sell $120K | +34.2% (+36.0% vs SPY) | +35.5% (+40.4% vs SPY) | — |
| Oct 29, 2026 | Earnings | Earnings: beat the EPS estimate by 37.7% | +8.1% (+8.5% vs SPY) | +45.2% (+45.9% vs SPY) | — |
| Oct 29, 2026 | Form 144 | Form 144: Leonard Livschitz plans to sell $90K | +8.1% (+8.5% vs SPY) | +45.2% (+45.9% vs SPY) | — |
| Oct 8, 2026 | Form 144 | Form 144: Yury Gryzlov plans to sell $39K | +4.3% (+4.8% vs SPY) | 0.0% (+1.0% vs SPY) | +56.8% (+62.7% vs SPY) |
| Sep 3, 2026 | Form 144 | Form 144: Yury Gryzlov plans to sell $31K | +4.4% (+3.3% vs SPY) | −0.3% (+0.7% vs SPY) | +2.1% (+1.3% vs SPY) |
| Aug 13, 2026 | Form 144 | Form 144: Yury Gryzlov plans to sell $31K | +1.9% (+1.2% vs SPY) | +2.4% (+2.8% vs SPY) | +2.4% (+3.5% vs SPY) |
| Jul 30, 2026 | Earnings | Earnings: beat the EPS estimate by 4.1% | +3.7% (+2.1% vs SPY) | +8.3% (+2.9% vs SPY) | +14.9% (+9.3% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 8.2% | +1.4% (+0.4% vs SPY) | +18.7% (+15.6% vs SPY) | +25.0% (+18.9% vs SPY) |
| Mar 5, 2026 | Earnings | Earnings: beat the EPS estimate by 9.4% | −0.7% (−0.1% vs SPY) | −8.4% (−7.1% vs SPY) | −22.2% (−18.0% vs SPY) |
| Dec 23, 2025 | 8-K | Directors and officers: departures, appointments, pay | +0.8% (+0.4% vs SPY) | −1.9% (−1.0% vs SPY) | −6.2% (−6.9% vs SPY) |
| Dec 15, 2025 | Insider sale | Zhang Shuo sold $29K | −0.5% (−0.4% vs SPY) | −3.9% (−4.0% vs SPY) | −3.0% (−4.6% vs SPY) |
| Dec 5, 2025 | Insider sale | Gryzlov Yury sold $242K | −1.8% (−2.0% vs SPY) | +1.1% (+0.4% vs SPY) | +2.3% (+1.0% vs SPY) |
| Nov 10, 2025 | 8-K | Directors and officers: departures, appointments, pay | −2.3% (−2.5% vs SPY) | −8.2% (−5.8% vs SPY) | +13.5% (+12.6% vs SPY) |
Insiders’ record here
In the year on the chart, Grid Dynamics Holdings' insiders reported 0 open-market buys ($0) and 2 sales ($271K). Of the 2 old enough to score, 2 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale −32.8%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → Grid Dynamics Holdings: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.