Shuo Zhang
CIK 1805694 · last filed 2025-12-29
"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 · Page 2 of 2
19 filingsInsider 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 |
|---|---|---|---|---|---|
| 2021-12-01 | GDYN | Sell (S) | −7,000 | -$275.7K | EDGAR |
| 2021-10-19 | GDYN | Other (J) | +402 | $4.1K | EDGAR |
| 2021-09-09 | GDYN | Sell (S) | −10,000 | -$316.3K | EDGAR |
| 2021-03-04 | GRID DYNAMICS HOLDINGS, INC. (GDYNW) Delisted | Grant (A) | +880 | $0 | EDGAR |
| 2020-12-17 | GRID DYNAMICS HOLDINGS, INC. (GDYNW) Delisted | Grant (A) | +6,762 | $0 | EDGAR |
| 2020-11-04 | GRID DYNAMICS HOLDINGS, INC. (GDYNW) Delisted | Grant (A) | +1,747 | $0 | EDGAR |
| 2020-09-21 | GRID DYNAMICS HOLDINGS, INC. (GDYNW) Delisted | Grant (A) | +6,405 | $0 | EDGAR |
| 2020-08-18 | GRID DYNAMICS HOLDINGS, INC. (GDYNW) Delisted | Buy (P) | +10,395 | $79.1K | EDGAR |
| 2020-08-05 | GRID DYNAMICS HOLDINGS, INC. (GDYNW) Delisted | Grant (A) | +2,004 | $0 | EDGAR |
Showing 11–19 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.
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.