Chih-Hsiao Chung - 18 Mar 2026 Form 3/A - Amendment Insider Report for ASE Technology Holding Co., Ltd. (ASX)

Reporting relationship: GM, ASE Japan & Wuxi Tongzhi
Issuer ticker: ASX
Reported as of: 18 Mar 2026
Net transaction value: $0
SEC form: 3/A - Amendment
Accepted by SEC: 27 May 2026, 06:16:45 UTC
Original report date: 18 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Georgette Yeh, attorney-in-fact for Chih-Hsiao Chung

Key filing fact

Chih-Hsiao Chung filed Form 3/A - Amendment for ASE Technology Holding Co., Ltd. (ASX) on 27 May 2026.

Key facts

This page summarizes Chih-Hsiao Chung's Form 3/A - Amendment filing for ASE Technology Holding Co., Ltd. (ASX).
0 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 27 May 2026, 06:16.

Change

No earlier filing in this sequence is available for direct comparison.
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

Official SEC source

Ownership activity is grounded in SEC Form 3/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0002116851 Primary reporting owner

Chung Chih-Hsiao

Relationship: GM, ASE Japan & Wuxi Tongzhi
Address: 1863, OOAZAIRYUDA, TAKAHATA-MACHI, HIGASHIOKITAMA-GUN, YAMAGATA, JAPAN
Signature: /s/ Georgette Yeh, attorney-in-fact for Chih-Hsiao Chung
Signature date: 27 May 2026

Reported non-derivative transactions

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

ASX holding

Ordinary Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 30,000
Date: 18 Mar 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ASX holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 18 Mar 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 365,000
Exercise price: $41.10
Footnotes: F1, F2

ASX holding Derivative

Stock Option (Right to Buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 18 Mar 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 500,000
Exercise price: $99.70
Footnotes: F2, F3

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Reflects stock options to purchase Ordinary Shares. These stock options were granted on November 23, 2018 and are fully vested and exercisable.

Footnote F2

The option exercise price reflects New Taiwan dollars.

Footnote F3

Reflects stock options to purchase Ordinary Shares. These stock options were granted on August 18, 2023 and vest in seven semi-annual installments. 40% of the options vested on August 18, 2025, 10% of the options vested on February 18, 2026, and the remaining installments will vest at 10% each on August 18 2026, February 18, 2027, August 18, 2027, February 18, 2028 and August 18, 2028.

SEC remarks

Exhibit 24.1 - Power of Attorney