ASE Technology CFO reports share and option stakes

ASE Technology Holding Co., Ltd. Chief Financial Officer Tung Hung-Szu filed an initial statement of ownership.

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Form Type

Rhea-AI Filing Summary

ASE Technology Holding Co., Ltd. Chief Financial Officer Tung Hung-Szu filed an initial statement of ownership. He directly holds 3,802,954 Ordinary Shares and indirectly holds 312,457 Ordinary Shares through his spouse.

He also holds stock options to purchase 1,000,000 Ordinary Shares at an exercise price of 41.1000 New Taiwan dollars, granted on November 23, 2018 and fully vested and exercisable until November 22, 2028.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Tung Hung-Szu

Role Chief Financial Officer

Type	Security	Shares	Price	Value
holding	Stock Option (Right To Buy)	--	--	--
holding	Ordinary Shares	--	--	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Stock Option (Right To Buy) — 1,000,000 contracts (Direct); Ordinary Shares — 3,802,954 shares (Direct); Ordinary Shares — 312,457 shares (Indirect, By Spouse)

Footnotes (2)

F1. Reflects stock options to purchase Ordinary Shares. These stock options were granted on November 23, 2018 and are fully vested and exercisable.
F2. The option exercise price reflects New Taiwan dollars.

FAQ

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

What does ASE Technology (ASX) CFO Tung Hung-Szu report in this Form 3?

ASE Technology CFO Tung Hung-Szu reports his existing equity holdings in the company. The filing lists his direct and indirect Ordinary Share ownership and a fully vested stock option grant for 1,000,000 underlying shares, providing a snapshot of his current stake and potential future share ownership.

How many ASE Technology (ASX) shares does the CFO directly and indirectly own?

The CFO directly owns 3,802,954 Ordinary Shares of ASE Technology and indirectly owns 312,457 Ordinary Shares through his spouse. These figures show both his personal stake and related family holdings, which together represent his reported beneficial interest in the company’s equity.

What are the key terms of the ASE Technology (ASX) CFO’s stock options?

The CFO holds stock options to purchase 1,000,000 Ordinary Shares at an exercise price of 41.1000 New Taiwan dollars. These options were granted on November 23, 2018, are fully vested and exercisable, and expire on November 22, 2028, defining his long-term equity incentive.

Are the ASE Technology (ASX) CFO’s reported options currently exercisable?

Yes, the reported stock options held by the CFO are fully vested and exercisable. They relate to 1,000,000 underlying Ordinary Shares, were granted on November 23, 2018, carry an exercise price of 41.1000 New Taiwan dollars, and remain exercisable until their November 22, 2028 expiration.

How is the ASE Technology (ASX) CFO’s indirect ownership structured?

The filing shows 312,457 Ordinary Shares held indirectly by the CFO through his spouse. This means the shares are not registered in his own name but are attributed to him as beneficial ownership, adding to his overall reported economic interest in ASE Technology’s equity.

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

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Accepted by SEC EDGAR 03/18/2026 - 04:13 PM EDT

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Tung Hung-Szu

(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)

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

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	3,802,954	D
Ordinary Shares	312,457	I	By Spouse

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Stock Option (Right To Buy)	⁽¹⁾	11/22/2028	Ordinary Shares	1,000,000	$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 Hung-Szu Tung	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)

Source: View Original Filing on SEC EDGAR