ASE Technology (ASX) director Chang Dan-Yao files initial Form 3

Rhea-AI Filing Summary

ASE Technology Holding Co., Ltd. director Chang Dan-Yao has filed an initial Form 3 as a reporting person for the company’s securities. The provided data show no reported transactions and no derivative positions, indicating this filing serves to formally register insider status without detailing any current holdings.

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SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

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1. Name and Address of Reporting Person^*

Chang Dan-Yao

(Last) (First) (Middle)

ROOM 1901, NO. 333

SECTION 1 KEELUNG RD.

(Street)

TAIPEI TAIWAN 110

(City) (State) (Zip)

TAIWAN, PROVINCE OF CHINA

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

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

3a. Foreign Trading Symbol

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit List - Exhibit 24.1 - Power of Attorney

No securities are beneficially owned.

	/s/ Georgette Yeh, attorney-in-fact for Dan-Yao Chang	03/18/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the ASE Technology (ASX) Form 3 filing by Chang Dan-Yao show?

The Form 3 identifies Chang Dan-Yao as a director and reporting person for ASE Technology Holding Co., Ltd.. The provided data include no reported transactions or derivative positions in this filing.

Are there any insider stock purchases or sales in this ASE Technology (ASX) Form 3?

No insider purchases or sales are shown in this Form 3. The transaction summary reports zero buy and zero sell entries, with no exercises, gifts, tax withholding, or restructuring transactions disclosed.

Does the ASE Technology (ASX) Form 3 list any derivative securities for Chang Dan-Yao?

The filing data indicate no derivative positions for Chang Dan-Yao. The derivative summary is empty, and the transaction summary shows zero derivative transactions or exercise activity in the reported information.

What insider role does Chang Dan-Yao hold at ASE Technology (ASX) in this Form 3?

The Form 3 identifies Chang Dan-Yao as a director of ASE Technology Holding Co., Ltd. The person is not flagged as an officer or a ten percent owner in the provided details.

Does this ASE Technology (ASX) Form 3 indicate any change in ownership?

The data provided do not show any change in ownership. The transaction summary lists no buy, sell, acquire, or dispose activity, and there are no holding or derivative entries associated with this Form 3 excerpt.