ASE Technology Holding ($ASX) Insider Trading & Smart Money Activity

ASE Technology Holding Co., Ltd. · Semiconductors · Latest filing Oct 12, 2026

ASE Technology Holding Co., Ltd. ($ASX) has 7 insider trades and 21 13F position changes on file. In the last 12 months on the open market, no insider bought and 4 insiders sold ($14.92M), net -$14.92M.

Insider buyers (12 mo)
0
Insider sellers (12 mo)
4
Net insider $ (12 mo)
-$14.92M
Congress trades (12 mo)
0
13F moves on file
21
Analyst ratings on file
0

ASX insider buying and selling by quarter

QuarterInsider buysInsider salesCongress buys / sales13F added / cut
Q1 2026 0 0 0 / 0 0 / 0
Q2 2026 0 5 · $12.66M 0 / 0 13 / 8
Q3 2026 0 0 0 / 0 0 / 0
Q4 2026 0 1 · $2.26M 0 / 0 0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All ASX insider, congress, 13F and analyst activity

DateSourceWhoActionSharesValue / amount ΔOwn1W1M6MFilingStory
Insider Uang Du-TsuenChief Administration Officer Sell (Open-market sale) 3K sh $2.26M Read
Insider Du-Tsuen UangChief Administration Officer Sell (Open-market sale) 3K sh $2.09M +13.5%+0.2% Read
Insider Du-Tsuen UangChief Administration Officer Sell (Open-market sale) 5K sh $3.33M -3.4%-6.3% Read
Insider Du-Tsuen UangChief Administration Officer Sell (Open-market sale) 3K sh $1.83M +3.2%-8.1% Read
Insider Jamie Odell Sell (Open-market sale) 30K sh $2.70M +8.0%+8.3% Read
Insider Antonia Korsanos Sell (Open-market sale) 30K sh $2.70M +8.0%+8.3% Read
Insider Antonia Korsanos Buy (Option exercise) 135K sh $4.78M +13.3%+6.8% Read
13F Bank of America Reduced -1.94M sh $251.47M +23.1%+18.3% Read
13F Bank of America Reduced -1.94M sh $287.89M +23.1%+18.3% Read
13F Verition Fund Management Added +288.74K sh $25.06M +3.0%+13.9% Read
13F Point72 Asset Management, L.P. Added +1.27M sh $61.62M +3.0%+13.9% —
13F Point72 Asset Management, L.P. Added +1.27M sh $75.55M +3.0%+13.9% —
13F Lazard Asset Management Reduced -6.48M sh $497.91M +3.0%+13.9% —
13F Lazard Asset Management Reduced -6.48M sh $610.48M +3.0%+13.9% —
13F Jones Financial Companies Added +1.82M sh $67.58M +3.0%+13.9% —
13F Jones Financial Companies Added +1.82M sh $82.86M +3.0%+13.9% —
13F Goldman Sachs Group Reduced -182.06K sh $246.26M +3.0%+13.9% Read
13F Bridgewater Associates New +1.55M sh $69.84M +3.0%+13.9% —
13F Barclays Reduced -376.78K sh $124.08M +3.0%+13.9% —
13F Barclays Reduced -376.78K sh $152.14M +3.0%+13.9% —
13F American Century Companies Added +1.60M sh $214.45M +3.0%+13.9% —
13F American Century Companies Added +1.60M sh $262.93M +3.0%+13.9% —
13F Capital Fund Management S.A. Reduced -50.98K sh $25.46M -7.4%+9.2% —
13F Acadian Asset Management Added +1.11M sh $271.23M -10.7%+7.5% —
13F Acadian Asset Management Added +1.11M sh $332.55M -10.7%+7.5% —
13F Creative Planning Added +526.36K sh $69.78M -9.9%+7.3% —
13F Creative Planning Added +526.36K sh $85.56M -9.9%+7.3% —
13F Sequoia Financial Advisors Added +2.52K sh $6.37M +6.1%+21.5% Read

1W / 1M / 6M = how ASX moved from the trade or filing date.

Insider trading in ASX: who is buying and selling

InsiderRoleTradesOpen-market netShares heldLast trade
Uang Du-Tsuen Chief Administration Officer 1 -$2.26M Oct 12, 2026
Du-Tsuen Uang Chief Administration Officer 3 -$7.26M Jun 23, 2026
Antonia Korsanos 2 -$2.70M Jun 16, 2026
Jamie Odell 1 -$2.70M Jun 16, 2026

Institutions moving ASX (13F)

Frequently asked questions

Are ASX insiders buying or selling?

Over the last 12 months 0 insiders made 0 open-market purchases worth $0 and 4 insiders made 6 open-market sales worth $14.92M, a net -$14.92M.

What is the latest insider trade in ASX?

Uang Du-Tsuen, Chief Administration Officer filed a sell (open-market sale) of 3K sh worth $2.26M on Oct 12, 2026.

Which institutions changed their ASX positions?

Recent 13F filers moving the stock include Bank of America, Point72 Asset Management, L.P., Lazard Asset Management, Jones Financial Companies and Barclays.

Other semiconductors stocks

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

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