Chen Tien-Szu sold ~$268M in ASE Industrial Holding Co Ltd ADR stock
ASE Industrial Holding Co Ltd ADR (ASX) · Data via SEC EDGAR Form 4
Price Performance · 10 days before → 90 days after trade
▲ = insider buy date
Trade Details · Public SEC Filing
Insider
Chen Tien-Szu
Role
—
Transaction
Open-Market Sale
Approx. Value
~$268M
Trade Date
Apr 24, 2026
Company
ASE Industrial Holding Co Ltd ADR
Ticker
ASXSource
SEC EDGAR Form 4
Why This Trade Stands Out
Very Strong conviction signal
Scored in the top tier across multiple factors. Fewer than 5% of insider trades receive this rating.
~$268M sale
Trades over $1M are rare. When insiders put this much of their own money on the line, they tend to have high conviction in their company's direction.
2 insiders traded in the same window
When multiple insiders independently buy within 30 days, it's called a cluster. Studies show clustered insider purchases outperform solo trades significantly, because several people with inside knowledge are reaching the same conclusion.
How good is Chen Tien-Szu at picking stocks?
Full track record: win rate, average return, and performance vs S&P 500
Chen Tien-Szu wasn't the only one selling.
2 insiders at ASE Industrial Holding Co Ltd ADR traded within the same 30-day window.
See who else bought · FreeOn April 24, 2026, Chen Tien-Szu — a corporate insider at ASE Industrial Holding Co Ltd ADR — filed a Form 4 with the SEC disclosing an open-market sale of approximately ~$268M in ASE Industrial Holding Co Ltd ADR (ASX) stock.
This transaction was part of a cluster — 2 insiders at ASE Industrial Holding Co Ltd ADR made open-market sales within the same 30-day window. Cluster activity from multiple independent insiders is one of the most studied patterns in insider trading research.
Under Section 16(a) of the Securities Exchange Act of 1934, corporate insiders must report all open-market stock transactions to the SEC within two business days. These filings — known as Form 4s — are publicly available on the SEC's EDGAR database. VeritySignals filters and scores the full Form 4 stream to surface high-conviction signals like this one.
VeritySignals Conviction Analysis
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All data sourced from publicly available SEC Form 4 filings via EDGAR · Not financial advice · Past performance does not guarantee future results.
At a Glance
More ASX Insider Activity
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Uang Du-Tsuen
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How to Read Insider Trades
What is this?
When company executives buy or sell their own stock, they must report it to the SEC within 2 days. These public filings reveal what the people who know the company best are doing with their own money.
Why does it matter?
Insiders can sell for many reasons (taxes, diversification, expenses), but they generally only buy for one: they think the stock is going up. That's why insider purchases are more predictive than sales.
What makes a trade "strong"?
We score trades on 15+ factors: the insider's role (CEO > director), trade size relative to their salary, whether other insiders also bought (clusters), and historical accuracy of the insider.
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