ASE Technology executive sells 8,000 ordinary shares

ASE Technology Holding Co., Ltd. Chief Administration Officer Uang Du-Tsuen reported open-market sales of a total of 8,000 Ordinary Shares.

Rhea-AI Filing Summary

ASE Technology Holding Co., Ltd. Chief Administration Officer Uang Du-Tsuen reported open-market sales of a total of 8,000 Ordinary Shares. The sales occurred on June 30 and July 1, 2026 at prices of NT$664, NT$687, and NT$709 per share.

After these transactions, Uang Du-Tsuen directly holds 759,000 Ordinary Shares. The reported sales represent a small portion of the officer’s disclosed direct holdings and involve no derivative exercises in this filing.

Insider Trade Summary

Net Seller: 8,000 shares

Net Sell 3 txns

Insider Uang Du-Tsuen

Role Chief Administration Officer

Sold 8,000 shs ($5.49M)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	3,000	$709.00	$2.13M
Sale	Ordinary Shares	3,000	$664.00	$1.99M
Sale	Ordinary Shares	2,000	$687.00	$1.37M

Holdings After Transaction: Ordinary Shares — 759,000 shares (Direct)

Footnotes (1)

1. F1. New Taiwan Dollars.

Key Figures

Total shares sold: 8,000 shares Shares sold on July 1, 2026: 3,000 shares Shares sold June 30, 2026 (first trade): 2,000 shares +3 more

6 metrics

Total shares sold 8,000 shares Net open-market sales reported in Form 4

Shares sold on July 1, 2026 3,000 shares Ordinary Shares sold at NT$709 per share

Shares sold June 30, 2026 (first trade) 2,000 shares Ordinary Shares sold at NT$687 per share

Shares sold June 30, 2026 (second trade) 3,000 shares Ordinary Shares sold at NT$664 per share

Holding after latest transaction 759,000 shares Direct Ordinary Share holdings after July 1, 2026 sale

Highest sale price NT$709 per share Open-market sale of 3,000 Ordinary Shares

Key Terms

open-market sale, Ordinary Shares, non-derivative, New Taiwan Dollars, +1 more

5 terms

open-market sale financial

"transaction_action: "open-market sale" for each Ordinary Shares transaction"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Ordinary Shares financial

"security_title: "Ordinary Shares" in each non-derivative transaction entry"

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.

non-derivative financial

"transaction_type: "non-derivative" indicating direct share transactions"

New Taiwan Dollars financial

"Footnote F1 states: "New Taiwan Dollars." for price currency"

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.

net-sell financial

"transactionSummary shows netBuySellDirection: "net-sell""

FAQ

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

What insider transactions did ASE Technology (ASX) report for Uang Du-Tsuen?

ASE Technology reported that Chief Administration Officer Uang Du-Tsuen sold 8,000 Ordinary Shares in open-market transactions. These sales took place over two days and were reported as non-derivative transactions involving the company’s Ordinary Shares.

At what prices did Uang Du-Tsuen sell ASE Technology (ASX) shares?

The reported sales were executed at prices of NT$664, NT$687, and NT$709 per Ordinary Share. All prices are stated in New Taiwan Dollars, according to the accompanying footnote in the insider transaction disclosure.

How many ASE Technology (ASX) shares does Uang Du-Tsuen hold after the sales?

Following the reported open-market sales, Uang Du-Tsuen directly holds 759,000 Ordinary Shares. This figure reflects the holdings after the most recent transaction date disclosed in the filing and shows that the officer retains a substantial share position.

Were derivatives involved in the ASE Technology (ASX) insider transactions?

No derivative securities were reported in these transactions. All three entries relate to non-derivative Ordinary Shares, and the derivative position summary is empty, indicating no option exercises or other derivative activity in this particular disclosure.

What is the total number of ASE Technology (ASX) shares sold by Uang Du-Tsuen?

Across the three reported transactions, Uang Du-Tsuen sold a combined 8,000 Ordinary Shares. The transaction summary in the disclosure shows a net-sell direction, with total sell shares of 8,000 and no reported purchases during this period.

In what currency are ASE Technology (ASX) insider transaction prices reported?

The insider transaction prices are reported in New Taiwan Dollars. A footnote in the disclosure explicitly states “New Taiwan Dollars,” clarifying that the per-share prices for the Ordinary Share sales use this currency.

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

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Accepted by SEC EDGAR 07/02/2026 - 07:15 AM EDT Learn about SEC filing dates

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)
06/30/2026

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	06/30/2026		S		3,000	D	$664(1)	764,000	D
Ordinary Shares	06/30/2026		S		2,000	D	$687(1)	762,000	D
Ordinary Shares	07/01/2026		S		3,000	D	$709(1)	759,000	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	07/02/2026
	** 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)