Ase Technology Holding Co., Ltd.
A maker of the packaging and testing that turns raw silicon chips into the working processors inside phones, computers, and cars, ASE Technology Holding is one of the world's largest outsourced semiconductor assembly and test (OSAT) providers. Founded in 1984 in Kaohsiung, Taiwan, as Advanced Semiconductor Engineering by brothers Jason and Richard Chang, it was reshaped in 2018 when it merged with rival Siliconware Precision Industries. A fun twist: the Chang family made its fortune in construction before pivoting to chips.
Sponsored ADR
Granted 4.50M
Sold 200.0K
Sold 530.0K
Sold 21.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Chang Chien ShenDirector · 2 transactions | — | 1.22B | 4.50M | — | — |
| Chen JeffreyDirector · 23 transactions | — | 4.97M | — | — | 200.0K |
| Chen Tien-SzuGM, ASE Inc. Chung-Li Branch · 4 transactions | — | 2.45M | — | — | 530.0K |
| Uang Du-TsuenChief Administration Officer · 5 transactions | — | 767.0K | — | — | 21.0K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: -751.0K shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.