ASE Technology (NYSE: ASX) director Tang discloses 225,000 shares and 350,000 options

Rhea-AI Filing Summary

ASE Technology Holding Co., Ltd. director Andrew R. Tang filed an initial ownership report showing both stock options and ordinary share holdings. He holds fully vested stock options to purchase 350,000 Ordinary Shares at an exercise price of 41.1000 per share, with these options expiring on November 22, 2028. He also directly owns 225,000 Ordinary Shares following this filing, giving a clear picture of his existing equity and option position rather than any new purchase or sale.

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^*

Tang Andrew R

(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)
Ordinary Shares	225,000	D

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
Stock Option (Right to Buy)	(1)	11/22/2028	Ordinary Shares	350,000	$41.1(2)	D

Explanation of Responses:

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

2. The option exercise price reflects New Taiwan dollars.

Remarks:

Exhibit List - Exhibit 24.1 - Power of Attorney

	/s/ Georgette Yeh, attorney-in-fact for Andrew R. Tang	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 Andrew R. Tang’s Form 3 filing show for ASX?

The Form 3 shows Andrew R. Tang’s existing equity stake in ASE Technology Holding. He directly holds 225,000 Ordinary Shares and fully vested options for 350,000 additional shares, providing a baseline view of his ownership as a director.

How many stock options does Andrew R. Tang hold in ASE Technology (ASX)?

Andrew R. Tang holds fully vested stock options on 350,000 Ordinary Shares. These options were granted on November 23, 2018, carry an exercise price of 41.1000 in New Taiwan dollars, and expire on November 22, 2028, defining his remaining derivative exposure.

How many ASE Technology (ASX) ordinary shares does Andrew R. Tang own directly?

He directly owns 225,000 Ordinary Shares of ASE Technology Holding. This reflects his post-reporting position in the underlying stock itself, separate from his stock options, and establishes his direct equity stake as a company director.

Did Andrew R. Tang buy or sell ASX shares in this Form 3?

The Form 3 does not report new buys or sells of ASE Technology shares. It functions as an initial ownership statement, listing his existing ordinary shares and fully vested stock options rather than recording fresh market transactions.

What are the key terms of Andrew R. Tang’s ASX stock options?

His options cover 350,000 Ordinary Shares at an exercise price of 41.1000 New Taiwan dollars per share. They were granted on November 23, 2018, are fully vested and exercisable, and expire on November 22, 2028, defining a multi-year exercise window.