Du-Tsuen Uang - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Du-Tsuen Uang has filed 6 SEC Form 4 filings across 1 company in the last 90 days - selling. Lifetime open-market sales: $24.30M.
Profile
Du-Tsuen Uang serves as Chief Administration Officer of ASE Technology Holding Co., Ltd. (ASX). Uang has reported 6 insider filings with the SEC since 2026. The most recent filing was in July 2026.
| Role | Chief Administration Officer |
|---|---|
| Notability | 34/100 |
Board memberships
- ASE Technology Holding Co., Ltd.
Reported roles
- Chief Administration Officer
Awards & honors
- Listed as Chief Administration Officer of ASE Technology Holding Co., Ltd. in the 2026 SEC filing context
Trading Pattern
InsiderAlpha's records for Du-Tsuen Uang go back to 2026: 6 primary Form 4 filings, an average of 6.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Du-Tsuen Uang has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Chief Administration Officer at ASE Technology Holding Co., Ltd. (ASX) - 6 filings, 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-24 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 3.0K | $665.00 | $2.00M |
| 2026-07-17 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 3.0K | $688.00 | $2.06M |
| 2026-07-08 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 2.0K | $687.00 | $1.37M |
| 2026-07-02 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 3.0K | $709.00 | $2.13M |
| 2026-07-02 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 2.0K | $687.00 | $1.37M |
| 2026-07-02 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 3.0K | $664.00 | $1.99M |
| 2026-06-23 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 3.0K | $697.00 | $2.09M |
| 2026-06-23 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 5.0K | $667.00 | $3.33M |
| 2026-06-23 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 3.0K | $611.00 | $1.83M |
| 2026-06-03 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 5.0K | $617.00 | $3.08M |
| 2026-06-03 | ASX | ASE Technology Holding Co., Ltd. | S - Open-market sale | 5.0K | $607.00 | $3.04M |
Companies - Last 90 Days
- ASE Technology Holding Co., Ltd. (ASX) - 6 filings, last 2026-07-24
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Du-Tsuen Uang has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Tien-Szu Chen - $247.14M of ASX open-market activity in the last 12 months
- Jeffrey Chen - $96.05M of ASX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Robert W. Duggan
- John Earl
- EcoR1 Capital, LLC
- ECP ControlCo, LLC
- ECP Fiber Holdings GP, LLC
- Electrum Strategic Resources L.P.
- Ariel Emanuel
- Retirement System Of The State Of Hawaii Employees'
Frequently Asked Questions
Who is Du-Tsuen Uang?
Du-Tsuen Uang serves as Chief Administration Officer of ASE Technology Holding Co., Ltd. (ASX). Uang has reported 6 insider filings with the SEC since 2026. The most recent filing was in July 2026.…
How many SEC Form 4 filings has Du-Tsuen Uang submitted recently?
6 primary Form 4 filings in the last 90 days, covering 1 company.
Has Du-Tsuen Uang been buying or selling stock?
Recorded transactions: 0 open-market purchases and 11 open-market sales ($24.30M) across all tracked filings.
Where can I see all of Du-Tsuen Uang's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Du-Tsuen Uang profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.