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Stockfacts

EOD US-equity data for investors and AI agents

Data is end-of-day, not real-time, and not investment advice

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Insider Trades & Whales

Insider trades are parsed from SEC Form 4 filings (first-party). The ownership breakdown below is computed first-hand from SEC 13F-HR + Form 4 (institutions from 13F, insiders from Form 4). For the full filer list and quarter-over-quarter position changes, see the Institutional (13F) tab.

Ownership Breakdown

Insiders 0.18%Institutions 3.56%362 filers

Top Institutions

Form 4 Transactions

40 most recent
DateInsiderTitleCodeSharesPriceValue
Jul 6, 2026Uang Du-TsuenChief Administration OfficerS2,000$687.0000$1.37M
Jul 1, 2026Uang Du-TsuenChief Administration OfficerS3,000$709.0000$2.13M
Jun 30, 2026Uang Du-TsuenChief Administration OfficerS2,000$687.0000$1.37M
Jun 30, 2026Uang Du-TsuenChief Administration OfficerS3,000$664.0000$1.99M
Jun 23, 2026Uang Du-TsuenChief Administration OfficerS3,000$697.0000$2.09M
Jun 22, 2026Uang Du-TsuenChief Administration OfficerS5,000$667.0000$3.33M
Jun 18, 2026Uang Du-TsuenChief Administration OfficerS3,000$611.0000$1.83M
Jun 3, 2026Uang Du-TsuenChief Administration OfficerS5,000$617.0000$3.08M
Jun 1, 2026Uang Du-TsuenChief Administration OfficerS5,000$607.0000$3.04M
May 27, 2026Chen JeffreyDirectorS2,000$653.0000$1.31M
May 26, 2026Chen JeffreyDirectorS9,000$630.0000$5.67M
May 25, 2026Chen JeffreyDirectorS9,000$590.0000$5.31M
May 22, 2026Chen JeffreyDirectorS9,000$538.0000$4.84M
May 21, 2026Chen JeffreyDirectorS9,000$505.0000$4.54M
May 20, 2026Chen JeffreyDirectorS9,000$477.0000$4.29M
May 19, 2026Chen JeffreyDirectorS9,000$483.0000$4.35M
May 18, 2026Chen JeffreyDirectorS9,000$506.0000$4.55M
May 15, 2026Chen JeffreyDirectorS9,000$563.0000$5.07M
May 14, 2026Chen JeffreyDirectorS9,000$560.0000$5.04M
Apr 24, 2026Chen JeffreyDirectorS9,000$473.0000$4.26M
Apr 23, 2026Chen JeffreyDirectorS9,000$487.6667$4.39M
Apr 22, 2026Chen JeffreyDirectorS9,000$466.5000$4.20M
Apr 21, 2026Chen JeffreyDirectorS9,000$463.5000$4.17M
Apr 20, 2026Chen JeffreyDirectorS9,000$461.5000$4.15M
Apr 20, 2026Chen Tien-SzuGM, ASE Inc. Chung-Li BranchS80,000$471.0000$37.68M
Apr 20, 2026Chen Tien-SzuGM, ASE Inc. Chung-Li BranchS50,000$467.0000$23.35M
Apr 20, 2026Chen Tien-SzuGM, ASE Inc. Chung-Li BranchS72,000$466.0000$33.55M
Apr 20, 2026Chen Tien-SzuGM, ASE Inc. Chung-Li BranchS328,000$465.1067$152.55M
Apr 17, 2026Chen JeffreyDirectorS9,000$454.0000$4.09M
Apr 16, 2026Chen JeffreyDirectorS9,000$446.0000$4.01M
Apr 15, 2026Chen JeffreyDirectorS9,000$432.0000$3.89M
Apr 14, 2026Chen JeffreyDirectorS9,000$427.0000$3.84M
Apr 13, 2026Chen JeffreyDirectorS9,000$408.3300$3.67M
Apr 10, 2026Chen JeffreyDirectorS9,000$387.0000$3.48M
Apr 9, 2026Chen JeffreyDirectorS9,000$388.0000$3.49M
Apr 9, 2026Chang Chien ShenDirectorM1,500,000$0.0000$0.00
Apr 9, 2026Chang Chien ShenDirectorM3,000,000$0.0000$0.00
Apr 9, 2026Chang Chien ShenDirectorM1,500,000$99.7000$149.55M
Apr 9, 2026Chang Chien ShenDirectorM3,000,000$41.1000$123.30M
Apr 8, 2026Chen JeffreyDirectorS9,000$380.5000$3.42M