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Shuo Zhang

CIK 1782026 · last filed 2026-07-02

Shuo Zhang is a corporate insider who has filed 12 SEC Form 4 insider transactions across 1 company since 2019. The most recent filing, for PDFS, was dated Jul 2, 2026. Across all open-market trades the lifetime net is −$634.1K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.1M 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

$1.11M

Companies

1

Total Filings

12

Lifetime Open-Market Net

-$634.1K

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
PDFS Director 24,881 $44.59 $1.11M -$634.1K 12 2026-07-02

Recent Filings

12 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
2026-07-02 PDFS Grant (A) +2,689 $0 EDGAR
2025-07-02 PDFS Grant (A) +7,429 $0 EDGAR
2024-07-02 PDFS Grant (A) +4,382 $0 EDGAR
2024-06-04 PDFS Sell (S) −5,500 -$190.6K EDGAR
2023-08-21 PDFS Sell (S) −3,047 -$102.8K EDGAR
2023-07-05 PDFS Grant (A) +3,354 $0 EDGAR
2022-11-17 PDFS Sell (S) −2,000 -$59.7K EDGAR
2022-07-05 PDFS Grant (A) +7,212 $0 EDGAR
2022-03-17 PDFS Sell (S) −11,017 -$280.9K EDGAR
2021-07-02 PDFS Grant (A) +4,688 $0 EDGAR
Showing 1–10 of 12
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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.