ASE Technology Holding Co., Ltd. (ASX): insider trading, Congress trades & who owns it

Insider signal
30/100
Insider selling · 90 days
Insider buys
$0
0 buyers · 12 months
Insider sales
$367.5M
3 sellers · 12 months
Funds holding
485
13F · Q2 2026
Congress trades
1
1 member · 2 years

ASE Technology Holding Co., Ltd. corporate insiders have only been selling lately: three insiders unloaded about $367.5 million of stock over 12 months, with no open-market purchases.

Keep in mind most insider selling is routine — stock-based pay has to be converted to cash at some point.

ASX also shows up in congressional disclosures: 1 reported trade from one lawmaker in two years. 485 investment managers listed ASX in their latest 13F filings (Q2 2026); more funds bought than sold. 2 quarters in a row of net selling by insiders. Insiders bought in 0 of the last 7 full quarters.

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Latest insider trades in ASX

FiledInsiderRoleTypeSharesPriceValueSource
Jul 24, 2026Uang Du-TsuenExecutive OfficerSell3,000$665.00$2.0MSEC
Jul 17, 2026Uang Du-TsuenExecutive OfficerSell3,000$688.00$2.1MSEC
Jul 8, 2026Uang Du-TsuenExecutive OfficerSell2,000$687.00$1.4MSEC
Jul 2, 2026Uang Du-TsuenExecutive OfficerSell3,000$709.00$2.1MSEC
Jul 2, 2026Uang Du-TsuenExecutive OfficerSell3,000$664.00$2.0MSEC
Jul 2, 2026Uang Du-TsuenExecutive OfficerSell2,000$687.00$1.4MSEC
Jun 23, 2026Uang Du-TsuenExecutive OfficerSell5,000$667.00$3.3MSEC
Jun 23, 2026Uang Du-TsuenExecutive OfficerSell3,000$697.00$2.1MSEC
Jun 23, 2026Uang Du-TsuenExecutive OfficerSell3,000$611.00$1.8MSEC
Jun 3, 2026Uang Du-TsuenExecutive OfficerSell5,000$607.00$3.0MSEC
Jun 3, 2026Uang Du-TsuenExecutive OfficerSell5,000$617.00$3.1MSEC
May 27, 2026Chen JeffreyDirectorSell9,000$630.00$5.7MSEC
May 27, 2026Chen JeffreyDirectorSell9,000$590.00$5.3MSEC
May 27, 2026Chen JeffreyDirectorSell9,000$538.00$4.8MSEC
May 27, 2026Chen JeffreyDirectorSell2,000$653.00$1.3MSEC

Congress trades in ASX Free

FiledMemberTypeAmountSource
Oct 5, 2025Sheri Biggs RSale$1,001 - $15,000Official filing

Questions about ASX

Are insiders buying or selling ASX stock?

In the last 12 months ASE Technology Holding Co., Ltd. insiders made open-market purchases worth about $0 and sales worth about $367.5 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.

When was the last insider trade in ASX?

The most recent open-market insider trade in ASX was filed on 2026-07-24.

How many institutions own ASX?

485 investment managers reported holding ASX in SEC Form 13F filings for Q2 2026.

Has any member of Congress traded ASX?

Yes. Members of Congress reported 1 trades in ASX over the past two years. The full list is free on CapitalSnitch.

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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).