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Shuo Zhang

CIK 1805694 · last filed 2025-12-29

Shuo Zhang is a corporate insider who has filed 19 SEC Form 4 insider transactions across 2 companies since 2020. The most recent filing, for GDYN, was dated Dec 29, 2025. Across all open-market trades the lifetime net is −$579.4K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.5M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$1.53M

Companies

2

Total Filings

19

Lifetime Open-Market Net

-$579.4K

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
GDYN Director 249,561 $6.14 $1.53M -$658.6K 10 2025-12-29
GRID DYNAMICS HOLDINGS, INC. (GDYNW) Delisted Director 167,848 $14.23 $2.39M $79.1K 6 2021-03-04

Recent Filings

19 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2025-12-29 GDYN Grant (A) +17,391 $0 EDGAR
2025-12-17 GDYN Sell (S) −3,000 -$29.2K EDGAR
2024-12-26 GDYN Grant (A) +3,672 $75.0K EDGAR
2024-06-05 GDYN Sell (S) −4,000 -$37.4K EDGAR
2024-06-03 GDYN Notice (144) −4,000 -$37.2K EDGAR
2024-06-03 PDFS Notice (144) −5,500 -$194.9K EDGAR
2023-12-26 GDYN Grant (A) +5,559 $0 EDGAR
2023-08-18 PDFS Notice (144) −3,047 -$102.8K EDGAR
2022-12-27 GDYN Grant (A) +6,811 $0 EDGAR
2021-12-22 GDYN Grant (A) +2,050 $0 EDGAR
Showing 1–10 of 19
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.