John Schlaefer - 26 Sep 2025 Form 4 Insider Report for GCT Semiconductor Holding, Inc. (GCTS)

Role: President, CEO & Class III Dir, Director
Signature: /s/Edmond Cheng, attorney-in-fact
Issuer symbol: GCTS
Transactions as of: 26 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 30 Sep 2025, 16:02:38 UTC
Previous filing: 23 Sep 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Schlaefer John	President, CEO & Class III Dir, Director	C/O GCT SEMICONDUCTOR HOLDING, INC., 2290 NORTH 1ST STREET, SUITE 201, SAN JOSE	/s/Edmond Cheng, attorney-in-fact	30 Sep 2025	0001542775

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	Other	$0	+555	+0.27%	$0.000000	202,728	26 Sep 2025	Direct	F1

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

Explanation of Responses:

Id	Content
F1	The transaction is a distribution of 555 shares of Common Stock, for no consideration, by the Parakletos @ Venture Millennium Fund LP. to the Reporting Person.