GIGAMEDIA (GIGM) director Tsai Chih-Hong files Form 3 showing no trades

Rhea-AI Filing Summary

GIGAMEDIA Ltd director files initial ownership report. Tsai Chih-Hong, a director of GIGAMEDIA Ltd, has filed a Form 3, which is an initial statement of beneficial ownership of securities. The insider data show no reported purchases, sales, gifts, option exercises, or other transactions in this filing.

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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^*

Tsai Chih-Hong

(Last) (First) (Middle)

8F, NO.22, LANE 407, SEC.2, TIDING BLVD.

(Street)

TAIPEI 114

(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
GIGAMEDIA Ltd [ GIGM ]

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:

No securities are beneficially owned.

	/s/Tsai Chih-Hong	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 Tsai Chih-Hong’s Form 3 filing for GIGM show?

The Form 3 shows that director Tsai Chih-Hong has filed an initial statement of beneficial ownership in GIGAMEDIA Ltd. The insider data report no purchases, sales, option exercises, gifts, or restructurings in this filing, indicating a baseline ownership disclosure only.

Were any GIGAMEDIA (GIGM) shares bought or sold in this Form 3?

No. The insider summary for GIGAMEDIA Ltd (GIGM) reports zero buy and sell transactions, and no derivative exercises or gifts. This Form 3 functions purely as an initial ownership statement, without recording any trading activity in the company’s securities.

What roles does the reporting person hold at GIGAMEDIA (GIGM)?

The filing identifies Tsai Chih-Hong as a director of GIGAMEDIA Ltd, with no officer position or ten percent owner status indicated. This means the report reflects board-level insider status rather than executive management or large-shareholder ownership in the disclosed data.

Does the GIGM Form 3 include any derivative securities activity?

No. The derivative summary in the GIGAMEDIA Ltd Form 3 is empty, and the transaction summary shows zero derivative transactions or exercises. The filing does not list options, warrants, or other derivatives being exercised or adjusted in this initial ownership report.

What does a neutral net buy/sell direction mean in this GIGM Form 3?

The net buy/sell direction is marked as neutral because there are no reported transactions. With buy, sell, gift, tax withholding, and restructuring counts all at zero, the Form 3 simply establishes Tsai Chih-Hong’s status as an insider without signaling any recent trading activity.