Latest filingSep 09, 2026Most recent Form 4
ASX
ASE Technology Holding Co., Ltd.
NYSETechnologySemiconductors & Related Devices
Insider activity for last month from 08/09 to 09/09. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$00 sells
Net open-market+$012 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period18transactions
- A · Grants / awards · dominant12 · 67%
- M · Option exercise4 · 22%
- G · Gifts2 · 11%
Activity by reported role
A joint filing can contribute to multiple roles34transactions
- GM · dominant7 · 21%
- AJ5 · 15%
- Director5 · 15%
- WT5 · 15%
- AICLB1 · 3%
- AS1 · 3%
- CAO1 · 3%
- Chief executive officer1 · 3%
- Chief financial officer1 · 3%
- CHAIR1 · 3%
- GT1 · 3%
- IL1 · 3%
- KPF1 · 3%
- PAO1 · 3%
- PRES1 · 3%
- SPIL1 · 3%
Distinct insiders active
Reporting-owner CIKs by month · peak Sep 2026 (12)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeChung Chih-HsiaoOrdinary Shares · Direct
425,000Sep 07, 2026
Chung Chih-HsiaoStock Option (Right to Buy) · Direct
0Aug 13, 2026
Chen JeffreyOrdinary Shares · Direct
2,083,000Sep 07, 2026
Chen JeffreyOrdinary Shares · Indirect · By Spouse
600,000Sep 07, 2026
Wu Tien-YueOrdinary Shares · Direct
8,277,473Sep 07, 2026
Chen Tien-SzuOrdinary Shares · Direct
2,551,821Sep 07, 2026
Tang Andrew ROrdinary Shares · Direct
310,000Sep 07, 2026
Tung Hung-SzuOrdinary Shares · Direct
4,202,954Sep 07, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 09 → Sep 09
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Top insiders
By absolute net value across the selected period- CC+$15.0M
- TC+$0
- HK+$0
- LC+$0
- LR+$0
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
ASX transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| ASX | Tsai Chi-Wen | CHAIRPRESSPIL | grant | 334k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Chung Chih-Hsiao | GMAJWT | grant | 30.0k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Hsiang Kenneth | CEOIL | grant | 40.0k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Lin Chung | GMAS | grant | 30.0k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Lo Raymond | GTKPF | grant | 400k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Kuo Hung-Ming | PAO | grant | 50.0k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Uang Du-Tsuen | CAO | grant | 90.0k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Tung Hung-Szu | CFO | grant | 400k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Tang Andrew R | DIR | grant | 85.0k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Chen Tien-Szu | GMAICLB | grant | 300k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Wu Tien-Yue | DIR | grant | 600k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Chen Jeffrey | DIR | gift | 600k | $0 | G | — | 0.0% | 09/09 | 09/07 |
| ASX | Chen Jeffrey | DIR | gift | 600k | $0 | G | — | 0.0% | 09/09 | 09/07 |
| ASX | Chen Jeffrey | DIR | grant | 300k | $0 | A | — | 0.0% | 09/09 | 09/07 |
| ASX | Chung Chih-Hsiao | GMAJWT | exercise | 73.0k | $0 | M | +5.0% | 08/19 | 08/13 | |
| ASX | Chung Chih-Hsiao | GMAJWT | exercise | 292k | $0 | M | +5.0% | 08/19 | 08/12 | |
| ASX | Chung Chih-Hsiao | GMAJWT | exercise | 73.0k | $300M | M | +5.0% | 08/19 | 08/13 | |
| ASX | Chung Chih-Hsiao | GMAJWT | exercise | 292k | $1.20B | M | +5.0% | 08/19 | 08/12 |
ASE Technology Holding Co., Ltd. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at ASE Technology Holding Co., Ltd.?
Tsai Chi-Wen, Chung Chih-Hsiao, Hsiang Kenneth, Lin Chung, Lo Raymond, Kuo Hung-Ming, Uang Du-Tsuen, Tung Hung-Szu, Tang Andrew R, Chen Tien-Szu, Wu Tien-Yue, Chen Jeffrey.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
No code-S sale is available for this period.
What is the recent purchase and sale balance?
No code-P purchases or code-S sales were reported in the selected period.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.