GCT Semiconductor (GCTS) chair Lee Kyeongho receives 24,122 RSUs

Rhea-AI Filing Summary

Lee Kyeongho reported acquisition or exercise transactions in this Form 4 filing.

GCT Semiconductor Holding, Inc. reported that Chairman and Class III Director Lee Kyeongho received a grant of 24,122 shares of Common Stock as a stock award. The award stems from Restricted Stock Units, each representing one share of common stock after vesting.

The number of RSUs was set by dividing $27,500 by the fair market value of the common stock, which was $1.14 per share on March 31, 2026, rounded down to the nearest whole share. These RSUs vest on March 31, 2026, subject to continued service, and are payable in common stock under a deferral election. Following this grant, Lee directly owns 1,086,863 shares of common stock.

Insider Trade Summary

Net Buyer: 24,122 shares

Net Buy 1 txn

Insider Lee Kyeongho

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	24,122	$0.00	$0.00

Holdings After Transaction: Common Stock — 1,086,863 shares (Direct)

Footnotes (4)

1. F1. Each Restricted Stock Unit ("RSU") represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of GCT Semiconductor Holding, Inc. (the "Issuer") following vesting. The RSUs become payable in Common Stock in accordance with a deferral election made by the reporting person.
2. F2. The number of shares subject to and issuable under the award is determined on the last day of each calendar quarter during the period April 1, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.14 on March 31, 2026, rounded down to the nearest whole share.
3. F3. The RSUs will vest on March 31, 2026, subject to continued service through such date.
4. F4. No expiration date is applicable to restricted stock units.

Key Figures

RSU grant size: 24,122 shares Post-grant holdings: 1,086,863 shares Award reference amount: $27,500 +5 more

8 metrics

RSU grant size 24,122 shares Common Stock award determined as of March 31, 2026

Post-grant holdings 1,086,863 shares Total common shares directly owned after transaction

Award reference amount $27,500 Dollar amount divided by fair market value to size RSU award

Fair market value per share $1.14 per share Fair market value of common stock on March 31, 2026

Par value $0.0001 per share Par value of GCT Semiconductor common stock

Vesting date March 31, 2026 RSUs vest on this date, subject to continued service

Award period April 1, 2025–March 31, 2026 Quarters over which RSU shares are determined

Transaction price $0.0000 per share Form 4 transaction price for grant/award acquisition

Key Terms

Restricted Stock Unit, fair market value, deferral election, vesting, +1 more

5 terms

Restricted Stock Unit financial

"Each Restricted Stock Unit ("RSU") represents the right to receive one share of common stock"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

fair market value financial

"by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.14"

The price a willing buyer and a willing seller would agree on for an asset or security when neither is under pressure and both have access to the same information. Think of it as the market’s neutral estimate of what something is worth, like the price two neighbors would settle on for a car after comparing similar listings. Investors care because fair market value guides buying and selling decisions, tax reporting, portfolio valuation, and how accurately company assets are reflected in financial statements.

deferral election financial

"The RSUs become payable in Common Stock in accordance with a deferral election made by the reporting person."

vesting financial

"The RSUs will vest on March 31, 2026, subject to continued service through such date."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

par value financial

"one share of common stock, par value $0.0001 per share ("Common Stock") of GCT Semiconductor Holding, Inc."

Par value is the fixed amount printed on a bond or stock that represents its original value when issued. It’s like the face value of a coin or bill—what the issuer promises to pay back or the starting price of a stock—though it often doesn’t change with market prices. It matters because it helps determine certain financial details, like how much the company will pay back at maturity.

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

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 04/02/2026 - 07:07 AM Learn about SEC filing dates

FAQ

What insider transaction did GCTS director Lee Kyeongho report on this Form 4?

Director Lee Kyeongho reported receiving a grant of 24,122 shares of GCT Semiconductor common stock. The shares come from Restricted Stock Units granted as compensation and are not an open-market purchase, with ownership directly attributed to him after the award.

How was the 24,122-share RSU award for GCTS’s Lee Kyeongho calculated?

The award size was determined by dividing $27,500 by the fair market value of GCT Semiconductor common stock. That fair market value was set at $1.14 per share on March 31, 2026, and the resulting number was rounded down to 24,122 shares.

When do Lee Kyeongho’s GCTS Restricted Stock Units vest and become payable?

The Restricted Stock Units vest on March 31, 2026, subject to Lee Kyeongho’s continued service through that date. After vesting, they become payable in GCT Semiconductor common stock, consistent with a deferral election made by the reporting person.

How many GCTS shares does Lee Kyeongho own after this RSU grant?

After the reported grant, Lee Kyeongho directly owns 1,086,863 shares of GCT Semiconductor common stock. This total includes the 24,122 shares from the latest Restricted Stock Unit award reported in the Form 4 insider transaction filing.

Does the GCTS RSU award to Lee Kyeongho involve any cash transaction?

The RSU grant was recorded at a price of $0.0000 per share on the Form 4, indicating it is a compensation award rather than a cash purchase. Value is tied to the fair market value of $1.14 per share used to size the grant.

What does each GCTS Restricted Stock Unit granted to Lee Kyeongho represent?

Each Restricted Stock Unit represents the right to receive one share of GCT Semiconductor common stock with par value $0.0001 per share. Delivery occurs in accordance with a deferral election after the RSUs vest, rather than via an immediate share issuance on grant date.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Lee Kyeongho

(Last) (First) (Middle)

C/O GCT SEMICONDUCTOR HOLDING, INC.

2290 NORTH 1ST STREET, SUITE 201

(Street)

SAN JOSE CALIFORNIA 95131

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GCT Semiconductor Holding, Inc. [ GCTS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			Chairman & Class III Director

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/31/2026		A		24,122(1)(2)(3)(4)	A	$0	1,086,863	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Each Restricted Stock Unit ("RSU") represents the right to receive one share of common stock, par value $0.0001 per share ("Common Stock") of GCT Semiconductor Holding, Inc. (the "Issuer") following vesting. The RSUs become payable in Common Stock in accordance with a deferral election made by the reporting person.

2. The number of shares subject to and issuable under the award is determined on the last day of each calendar quarter during the period April 1, 2025 through March 31, 2026 (beginning with the quarter ending June 30, 2025) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $1.14 on March 31, 2026, rounded down to the nearest whole share.

3. The RSUs will vest on March 31, 2026, subject to continued service through such date.

4. No expiration date is applicable to restricted stock units.

	/s/ Edmond Cheng, attorney-in-fact	04/02/2026
	** 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 4 (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 4: SEC 1474 (03-26)