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ASE Technology Holding Co., Ltd.

ASX
Exchange
NYSE
Industry
Semiconductors & Related Devices
SEC CIK
0001122411

No open-market purchases or sales by ASE Technology Holding Co., Ltd. insiders were filed in the last 90 days; 487 institutions reported holding it in 13F filings for Q2 2026, worth $9.45B in total; Maverick Capital is the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by ASE Technology Holding Co., Ltd. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for ASE Technology Holding Co., Ltd., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for ASE Technology Holding Co., Ltd.
NameTitleLast reported holdingLast filingFilings, past year
Chang Hung PenDirector4,800,000Sep 24, 20262
Tsai Chi-WenChairman & President, SPIL15,598,000Sep 9, 20261
Chung Chih-HsiaoGM, ASE Japan & Wuxi Tongzhi425,000Sep 9, 20262
Hsiang KennethCEO, ISE Labs109,000Sep 9, 20261
Lin ChungGM, ASE Shanghai & Electronics170,278Sep 9, 20262
Lo RaymondGM TW & Kaohsiung Pkg Facility4,383,430Sep 9, 20261
Kuo Hung-MingPrincipal Accounting Officer985,500Sep 9, 20261
Uang Du-TsuenChief Administration Officer841,000Sep 9, 20267
Tung Hung-SzuChief Financial Officer4,202,954Sep 9, 20261
Tang Andrew RDirector310,000Sep 9, 20261
Chen Tien-SzuGM, ASE Inc. Chung-Li Branch2,551,821Sep 9, 20262
Wu Tien-YueDirector8,277,473Sep 9, 20261
Chen JeffreyDirector600,000IndirectSep 9, 20269
Chang Chien ShenDirector6,247,647Apr 13, 20261

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 24, 2026 (view filing)6:07 AM ETJul 222 daysUang Du-TsuenChief Administration OfficerSSale−3.00K$665.00−$2.00M−0.4%751.0K afterPrice outlier
Jul 17, 2026 (view filing)9:42 AM ETJul 152 daysUang Du-TsuenChief Administration OfficerSSale−3.00K$688.00−$2.06M−0.4%754.0K afterPrice outlier
Jul 8, 2026 (view filing)6:05 AM ETJul 62 daysUang Du-TsuenChief Administration OfficerSSale−2.00K$687.00−$1.37M−0.3%757.0K afterPrice outlier
Jul 2, 2026 (view filing)7:15 AM ETJun 30-Jul 12 daysUang Du-TsuenChief Administration OfficerSSale−8.00K$686.63−$5.49M−1.0%759.0K after3 lotsPrice outlier
Jun 23, 2026 (view filing)Jun 18-235 daysUang Du-TsuenChief Administration OfficerSSale−11.0K$659.91−$7.26M−1.4%767.0K after3 lotsPrice outlier
Jun 3, 2026 (view filing)Jun 1-32 daysUang Du-TsuenChief Administration OfficerSSale−10.0K$612.00−$6.12M−1.3%778.0K after2 lotsPrice outlier
May 27, 2026 (view filing)May 22-275 daysChen JeffreyDirectorSSale−29.0K$590.62−$17.1M−100.0%0 after4 lotsPrice outlier
May 21, 2026 (view filing)May 19-212 daysChen JeffreyDirectorSSale−27.0K$488.33−$13.2M−48.2%29.0K after3 lotsPrice outlier
May 18, 2026 (view filing)May 14-184 daysChen JeffreyDirectorSSale−27.0K$543.00−$14.7M−32.5%56.0K after3 lotsPrice outlier
Apr 28, 2026 (view filing)Apr 244 daysChen JeffreyDirectorSSale−9.00K$473.00−$4.26M−9.8%83.0K afterPrice outlier
Apr 23, 2026 (view filing)Apr 21-232 daysChen JeffreyDirectorSSale−27.0K$472.56−$12.8M−22.7%92.0K after3 lotsPrice outlier
Apr 22, 2026 (view filing)Apr 202 daysChen Tien-SzuGM, ASE Inc. Chung-Li BranchSSale−530.0K$466.30−$247.1M−19.1%2.25M after4 lotsPrice outlier
Apr 20, 2026 (view filing)Apr 16-204 daysChen JeffreyDirectorSSale−27.0K$453.83−$12.3M−18.5%119.0K after3 lotsPrice outlier
Apr 15, 2026 (view filing)Apr 13-152 daysChen JeffreyDirectorSSale−27.0K$422.44−$11.4M−15.6%146.0K after3 lotsPrice outlier
Apr 10, 2026 (view filing)Apr 8-102 daysChen JeffreyDirectorSSale−27.0K$385.17−$10.4M−13.5%173.0K after3 lotsPrice outlier