Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

GRID DYNAMICS HOLDINGS, INC.

GDYN · Nasdaq · CIK 0001743725 · Technology · Information Technology Services

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

24 Form 4 transaction lines observed in the same window
8 sales · 16 option, withholding, award, gift or other lines

Last qualifying purchase2022-05-12 · Nicolet Patrick · $164.2K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Gryzlov YuryCHIEF OPERATING OFFICER
○▼▼○▼▼○▼▼○▼▼
Livschitz LeonardCHIEF EXECUTIVE OFFICER
○○○○○○○
Doradla AnilCHIEF FINANCIAL OFFICER
○○○○
Zhang ShuoDirector
○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2022-05-12 · Nicolet Patrick.

Recent Form 4 activity

0Purchases
21Sales
55Other Form 4 lines
60SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING8 sale line(s) · context only
OTHER16 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
3,852,239
Previous report
4,529,405
Avg daily volume
830,545
Days to cover
4.6

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2022-05-12Nicolet PatrickPurchase (P)Common Stock10,000USD 16.42USD 164,200SEC filing ↗
2022-03-16BENHAMOU ERICPurchase (P)Common Stock23,500USD 10.88USD 255,680SEC filing ↗
2022-03-09Doradla AnilPurchase (P)Common Stock2,000USD 11.65USD 23,300SEC filing ↗
2020-12-16Livshitz VictoriaPurchase (P)Common Stock126,000USD 11.72USD 1,477,220SEC filing ↗
2020-11-13CARNEY LLOYDPurchase (P)Common Stock5,900USD 8.47USD 49,973SEC filing ↗
2020-08-19CARNEY LLOYDPurchase (P)Common Stock7,200USD 7.89USD 56,808SEC filing ↗
2020-08-12Zhang ShuoPurchase (P)Common Stock10,395USD 7.61USD 79,106SEC filing ↗
2020-08-10Doradla AnilPurchase (P)Common Stock2,500USD 7.15USD 17,875SEC filing ↗
2020-08-10CARNEY LLOYDPurchase (P)Common Stock7,200USD 7.25USD 52,200SEC filing ↗

Form 4 evidence

76 transaction lines in the latest 365-day window; 550 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-08Gryzlov YurySale (S)Common Stock4,849USD 8.00USD 38,792SEC filing ↗
2026-10-02Gryzlov YurySale (S)Common Stock1,245USD 8.46USD 10,533SEC filing ↗
2026-10-01Livschitz LeonardTax withholding (F)Common Stock35,968USD 8.38USD 301,412SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-08Gryzlov YurySale (S)Common Stock4,849USD 8.00USD 38,792SEC filing ↗
2026-10-02Gryzlov YurySale (S)Common Stock1,245USD 8.46USD 10,533SEC filing ↗
2026-10-01Livschitz LeonardTax withholding (F)Common Stock35,968USD 8.38USD 301,412SEC filing ↗
2026-10-01Gryzlov YuryTax withholding (F)Common Stock1,686USD 8.38USD 14,129SEC filing ↗
2026-10-01Doradla AnilTax withholding (F)Common Stock2,111USD 8.38USD 17,690SEC filing ↗
2026-09-03Gryzlov YurySale (S)Common Stock3,918USD 8.00USD 31,344SEC filing ↗
2026-08-21Livschitz LeonardTax withholding (F)Common Stock174USD 7.96USD 1,385SEC filing ↗
2026-08-18Gryzlov YurySale (S)Common Stock467USD 7.53USD 3,517SEC filing ↗
2026-08-14Livschitz LeonardTax withholding (F)Common Stock252USD 7.65USD 1,928SEC filing ↗
2026-08-14Gryzlov YuryTax withholding (F)Common Stock632USD 7.75USD 4,898SEC filing ↗
2026-08-13Gryzlov YurySale (S)Common Stock3,930USD 8.00USD 31,440SEC filing ↗
2026-08-07Zhang ShuoGift (G)Common Stock5,134USD 0.00USD 0SEC filing ↗
2026-07-28Doradla AnilTax withholding (F)Common Stock667USD 6.14USD 4,095SEC filing ↗
2026-07-02Livschitz LeonardTax withholding (F)Common Stock35,968USD 6.24USD 224,440SEC filing ↗
2026-07-02Gryzlov YurySale (S)Common Stock1,245USD 6.29USD 7,831SEC filing ↗
2026-07-01Livschitz LeonardTax withholding (F)Common Stock35,968USD 6.24USD 224,440SEC filing ↗
2026-07-01Gryzlov YuryTax withholding (F)Common Stock1,686USD 6.24USD 10,521SEC filing ↗
2026-07-01Doradla AnilTax withholding (F)Common Stock2,118USD 6.24USD 13,216SEC filing ↗
2026-06-01Gryzlov YurySale (S)Common Stock4,435USD 8.00USD 35,480SEC filing ↗
2026-05-22Livschitz LeonardTax withholding (F)Common Stock162USD 7.08USD 1,147SEC filing ↗
2026-05-15Livschitz LeonardTax withholding (F)Common Stock236USD 6.45USD 1,522SEC filing ↗
2026-05-15Gryzlov YurySale (S)Common Stock467USD 6.45USD 3,012SEC filing ↗
2026-05-14Gryzlov YuryTax withholding (F)Common Stock632USD 6.47USD 4,089SEC filing ↗
2026-04-28Doradla AnilTax withholding (F)Common Stock702USD 5.60USD 3,931SEC filing ↗
2026-04-02Gryzlov YurySale (S)Common Stock1,245USD 5.54USD 6,897SEC filing ↗
2026-04-01Livschitz LeonardTax withholding (F)Common Stock35,968USD 5.64USD 202,860SEC filing ↗
2026-04-01Gryzlov YuryTax withholding (F)Common Stock1,686USD 5.64USD 9,509SEC filing ↗
2026-04-01Doradla AnilTax withholding (F)Common Stock2,108USD 5.64USD 11,889SEC filing ↗
2026-03-10Gryzlov YurySale (S)Common Stock21,266USD 6.22USD 132,275SEC filing ↗
2026-02-21Livschitz LeonardTax withholding (F)Common Stock178USD 6.81USD 1,212SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerGDYN
CIK0001743725
SectorTechnology
IndustryInformation Technology Services Yahoo Finance
SEC SIC7372 Services-Prepackaged Software
ExchangeNasdaq

Data coverage

Local Form 4 history550 transaction lines from 2020-03-05 to 2026-10-08
10 P purchase lines · 193 S sale lines · 347 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.