Chen Tien-Szu - 20 Apr 2026 Form 4 Insider Report for ASE Technology Holding Co., Ltd. (ASX)

Reporting relationship: GM, ASE Inc. Chung-Li Branch
Issuer ticker: ASX
Reported as of: 20 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 22 Apr 2026, 06:30:00 UTC
Prior SEC filing: 18 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Georgette Yeh, attorney-in-fact for Chen Tien-Szu

Key filing fact

Chen Tien-Szu filed Form 4 for ASE Technology Holding Co., Ltd. (ASX) on 22 Apr 2026.

Key facts

This page summarizes Chen Tien-Szu's Form 4 filing for ASE Technology Holding Co., Ltd. (ASX).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 22 Apr 2026, 06:30.

Change

Previous filing in this sequence was filed on 18 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002116549 Primary reporting owner

Chen Tien-Szu

Relationship: GM, ASE Inc. Chung-Li Branch
Address: 550, CHUNG-HWA ROAD, SECTION 1, TAOYUAN CITY, TAIWAN
Signature: /s/ Georgette Yeh, attorney-in-fact for Chen Tien-Szu
Signature date: 22 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ASX transaction

Ordinary Shares

Sale

Transaction value
Shares: -328,000
Change %: -12%
Price: $465.11^*
Shares after: 2,453,821
Date: 20 Apr 2026
Ownership: Direct
Footnotes: F1, F2

ASX transaction

Ordinary Shares

Sale

Transaction value
Shares: -72,000
Change %: -2.9%
Price: $466.00^*
Shares after: 2,381,821
Date: 20 Apr 2026
Ownership: Direct
Footnotes: F1

ASX transaction

Ordinary Shares

Sale

Transaction value
Shares: -50,000
Change %: -2.1%
Price: $467.00^*
Shares after: 2,331,821
Date: 20 Apr 2026
Ownership: Direct
Footnotes: F1

ASX transaction

Ordinary Shares

Sale

Transaction value
Shares: -80,000
Change %: -3.4%
Price: $471.00^*
Shares after: 2,251,821
Date: 20 Apr 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

New Taiwan Dollars.

Footnote F2

The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $465 to $465.5 New Taiwan Dollars per share. The holder undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.