Edmond Cheng - 19 Sep 2025 Form 4 Insider Report for GCT Semiconductor Holding, Inc. (GCTS)

Role: Chief Financial Officer
Signature: /s/ Edmond Cheng
Issuer symbol: GCTS
Transactions as of: 19 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 23 Sep 2025, 16:06:29 UTC
Previous filing: 23 Aug 2024
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Cheng Edmond	Chief Financial Officer	C/O GCT SEMICONDUCTOR HOLDING, INC., 2290 NORTH 1ST STREET, SUITE 201, SAN JOSE	/s/ Edmond Cheng	22 Sep 2025	0001491155

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GCTS	Common Stock, par value $0.0001 per share	Award	$0	+75,000	+99%	$0.000000	151,000	19 Sep 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents restricted stock units ("RSU"), which constitute a contingent right to receive one share of common stock, par value $0.0001 per share, of GCT Semiconductor Holding, Inc. The RSUs vest over four years in equal 25% installments on each anniversary of the September 19, 2025 grant date, commencing September 19, 2026, subject to the Reporting Person's continued service with the Issuer.