ASE Technology officer sells 3,000 ordinary shares

ASE Technology Holding Co., Ltd. executive Uang Du‑Tsuen, Chief Administration Officer, sold 3,000 Ordinary Shares on July 22, 2026 at NT$665 per share in an open-market or private transaction.

Accepted by SEC EDGAR 07/24/2026 - 06:07 AM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

ASE Technology Holding Co., Ltd. executive Uang Du‑Tsuen, Chief Administration Officer, sold 3,000 Ordinary Shares on July 22, 2026 at NT$665 per share in an open-market or private transaction. After this sale, Uang directly holds 751,000 Ordinary Shares.

Insider Trade Summary

Net Seller: 3,000 shares

Net Sell 1 txn

Insider Uang Du-Tsuen

Role Chief Administration Officer

Sold 3,000 shs ($2.00M)

Share of Position Sold 0.40%

Type	Security	Shares	Price	Value
Sale	Ordinary Shares F1	3,000	$665.00	$2.00M

Holdings After Transaction: Ordinary Shares — 751,000 shares (Direct)

Holdings Before and After: Ordinary Shares, 754,000 to 751,000 shares (Direct)

Footnotes (1)

1. F1. New Taiwan Dollars.

Key Figures

Shares sold: 3,000 shares Sale price per share: NT$665 per share Shares held after transaction: 751,000 shares +1 more

4 metrics

Shares sold 3,000 shares Ordinary Shares sold on July 22, 2026

Sale price per share NT$665 per share Price for the Ordinary Shares sold, denominated in New Taiwan Dollars

Shares held after transaction 751,000 shares Direct ownership following the reported sale by Uang Du‑Tsuen

Net insider share change -3,000 shares Net shares sold across all transactions reported in this Form 4

Key Terms

Ordinary Shares, New Taiwan Dollars, Chief Administration Officer

3 terms

Ordinary Shares financial

"Security title for the transaction is listed as Ordinary Shares."

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

New Taiwan Dollars financial

"A footnote explains that the reported price is denominated in New Taiwan Dollars."

The New Taiwan Dollar (NTD) is the official currency used in Taiwan for everyday transactions, like buying groceries or paying bills. For investors, it matters because its value can influence Taiwan’s economy and affect the profitability of investments related to the region. Changes in the currency’s strength can also impact international trade and financial markets involving Taiwan.

Chief Administration Officer other

"Uang Du‑Tsuen is identified with the officer title Chief Administration Officer."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did ASE Technology (ASX) report for July 22, 2026?

ASE Technology executive Uang Du‑Tsuen completed a sale of 3,000 Ordinary Shares on July 22, 2026. The transaction is coded as a sale in an open-market or private transaction, with the price reported at NT$665 per share and direct ownership.

How many ASE Technology (ASX) shares did Uang Du‑Tsuen sell, and at what price?

Uang Du‑Tsuen sold 3,000 Ordinary Shares of ASE Technology at a reported price of NT$665 per share. The currency is New Taiwan Dollars, and the transaction is classified as a sale of non-derivative securities with direct ownership.

How many ASE Technology (ASX) shares does Uang Du‑Tsuen own after this reported sale?

Following the sale, Uang Du‑Tsuen directly owns 751,000 Ordinary Shares of ASE Technology. This post-transaction holding reflects his remaining direct ownership position after disposing of 3,000 shares in the reported July 22, 2026 transaction.

What currency is used for the ASE Technology (ASX) insider sale price?

The sale price of NT$665 per share is denominated in New Taiwan Dollars. A footnote to the transaction specifies that the currency for the reported price is New Taiwan Dollars, clarifying the monetary unit for the insider share sale.

Was the ASE Technology (ASX) insider sale by Uang Du‑Tsuen under a Rule 10b5-1 trading plan?

The report indicates the transaction was not affirmed as made under a Rule 10b5‑1 trading plan. The Rule 10b5‑1 checkbox associated with the disclosure is explicitly unchecked, meaning the sale is not designated as occurring pursuant to such a prearranged plan.

What position does Uang Du‑Tsuen hold at ASE Technology (ASX)?

Uang Du‑Tsuen is reported as the Chief Administration Officer of ASE Technology. He is classified as an officer, not a director or 10% owner, and the reported insider transaction relates to his holdings of Ordinary Shares in that executive capacity.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Uang Du-Tsuen

(Last) (First) (Middle)

ROOM 1901, NO. 333

SECTION 1 KEELUNG RD.

(Street)

TAIPEI TAIWAN 110

(City) (State) (Zip)

TAIWAN

(Country)

2. Issuer Name and Ticker or Trading Symbol
ASE Technology Holding Co., Ltd. [ ASX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Administration Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/22/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	07/22/2026		S		3,000	D	$665(1)	751,000	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. New Taiwan Dollars.

	/s/ Georgette Yeh, attorney-in-fact for Du-Tsuen Uang	07/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)