ASE Technology (NYSE: ASX) director logs 27K-share open-market sales via spouse

Rhea-AI Filing Summary

ASE Technology Holding Co., Ltd. director Jeffrey Chen reported open-market sales of a total of 27,000 Ordinary Shares indirectly held through his spouse. The sales occurred on May 14, May 15 and May 18 at prices between NT$506.0000 and NT$563.0000 per share. After these transactions, he continues to hold 56,000 Ordinary Shares indirectly through his spouse and 2,383,000 Ordinary Shares directly. The filing notes that he disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.

Insider Trade Summary

Net Seller: 27,000 shares ($14,661,000)

Net Sell 4 txns

Insider Chen Jeffrey

Role null

Sold 27,000 shs ($14.66M)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	9,000	$506.00	$4.55M
Sale	Ordinary Shares	9,000	$563.00	$5.07M
Sale	Ordinary Shares	9,000	$560.00	$5.04M
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Ordinary Shares — 56,000 shares (Indirect, By Spouse); Ordinary Shares — 2,383,000 shares (Direct, null)

Footnotes (1)

1. New Taiwan Dollars. The Reporting Person disclaims beneficial ownership over the securities reported except to the extent of his pecuniary interest therein, if any.

Key Figures

Total shares sold: 27,000 shares Sale on May 14: 9,000 shares at NT$560.0000 Sale on May 15: 9,000 shares at NT$563.0000 +3 more

6 metrics

Total shares sold 27,000 shares Aggregate open-market sales reported in Form 4

Sale on May 14 9,000 shares at NT$560.0000 Non-derivative open-market sale, indirect by spouse

Sale on May 15 9,000 shares at NT$563.0000 Non-derivative open-market sale, indirect by spouse

Sale on May 18 9,000 shares at NT$506.0000 Non-derivative open-market sale, indirect by spouse

Indirect holdings after May 18 56,000 shares Ordinary Shares held indirectly through spouse

Direct holdings as of May 14 2,383,000 shares Ordinary Shares held directly by reporting person

Key Terms

open-market sale, Ordinary Shares, indirect, beneficial ownership, +1 more

5 terms

open-market sale financial

"transaction_action": "open-market sale""

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""

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.

indirect financial

""ownership_type": "indirect""

beneficial ownership financial

"disclaims beneficial ownership over the securities reported"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"except to the extent of his pecuniary interest therein"

Form 4 Insider Transactions: What Each Field Means →

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^*

Chen Jeffrey

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026

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	05/14/2026		S		9,000	D	$560(1)	74,000	I	By Spouse(2)
Ordinary Shares	05/15/2026		S		9,000	D	$563(1)	65,000	I	By Spouse(2)
Ordinary Shares	05/18/2026		S		9,000	D	$506(1)	56,000	I	By Spouse(2)
Ordinary Shares								2,383,000	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.

2. The Reporting Person disclaims beneficial ownership over the securities reported except to the extent of his pecuniary interest therein, if any.

	/s/ Georgette Yeh, attorney-in-fact for Jeffrey Chen	05/18/2026
	** 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)

FAQ

What insider transactions did ASX director Jeffrey Chen report?

Jeffrey Chen reported open-market sales totaling 27,000 ASE Technology Ordinary Shares. The trades were executed through his spouse’s indirect holdings on May 14, May 15 and May 18 at prices between NT$506.0000 and NT$563.0000 per share.

At what prices were the ASX shares sold in Jeffrey Chen’s Form 4?

The reported ASE Technology Ordinary Share sales were executed at NT$560.0000, NT$563.0000 and NT$506.0000 per share. These prices apply to separate 9,000-share transactions on May 14, May 15 and May 18, respectively, all from indirect spouse-held shares.

How many ASE Technology (ASX) shares did Jeffrey Chen sell?

The Form 4 shows that 27,000 ASE Technology Ordinary Shares were sold in total. This consisted of three separate 9,000-share open-market sales on May 14, May 15 and May 18, all classified as non-derivative transactions from indirect holdings.

What are Jeffrey Chen’s ASE Technology shareholdings after these sales?

After the reported transactions, Jeffrey Chen’s indirect holdings through his spouse stand at 56,000 Ordinary Shares. A separate holding entry on May 14 reports 2,383,000 Ordinary Shares held directly, giving a combined position visible in this filing across direct and indirect ownership.

How is beneficial ownership described in Jeffrey Chen’s ASX Form 4?

The Form 4 includes a footnote stating that the reporting person disclaims beneficial ownership of the reported securities, except to the extent of his pecuniary interest, if any. This standard language limits how much of the spouse-held shares are attributed economically to him.