GCT Semiconductor director awarded 24,122 RSUs

GCT Semiconductor Holding, Inc. director Robert Barker received an equity award of 24,122 shares of common stock in the form of restricted stock units at no cash cost per share.

Rhea-AI Filing Summary

GCT Semiconductor Holding, Inc. director Robert Barker received an equity award of 24,122 shares of common stock in the form of restricted stock units at no cash cost per share. Each RSU converts into one share of common stock after vesting.

The RSUs are scheduled to vest on March 31, 2026, subject to Mr. Barker’s continued service. The award size is based on dividing $27,500 by the fair market value per share of $1.14 on March 31, 2026, rounded down. Following this grant, he directly holds 142,451 shares.

Insider Trade Summary

Grant/Award: 24,122 shares

Grant/Award 1 txn

Insider Barker Robert

Role Director

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

Holdings After Transaction: Common Stock — 142,451 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

RSUs granted: 24,122 shares Transaction price per share: $0.0000 per share Shares held after grant: 142,451 shares +3 more

6 metrics

RSUs granted 24,122 shares Common stock RSU award to director Robert Barker

Transaction price per share $0.0000 per share Equity grant, not open-market purchase

Shares held after grant 142,451 shares Total direct holdings following the RSU award

Quarterly award value $27,500 Dollar amount used to determine RSUs per quarter

Fair market value per share $1.14 per share Fair market value on March 31, 2026 for award calculation

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

Key Terms

Restricted Stock Unit ("RSU"), fair market value per share, deferral election, par value, +1 more

5 terms

Restricted Stock Unit ("RSU") financial

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

fair market value per share financial

"by dividing $27,500 by the fair market value per share of Common Stock"

deferral election financial

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

par value financial

"one share of common stock, par value $0.0001 per share ("Common Stock")"

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.

continued service financial

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

FAQ

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

What insider transaction did GCT Semiconductor (GCTS) report for Robert Barker?

GCT Semiconductor reported an equity grant to director Robert Barker. He received 24,122 restricted stock units of common stock at no cash cost, increasing his direct holdings to 142,451 shares after the award, according to the Form 4 filing.

How many shares were included in Robert Barker’s RSU grant at GCT Semiconductor (GCTS)?

Robert Barker’s award covers 24,122 restricted stock units. Each RSU represents the right to receive one share of GCT Semiconductor common stock after vesting, with the number of RSUs tied to a quarterly value of $27,500 and the share’s fair market value.

When do Robert Barker’s RSUs at GCT Semiconductor (GCTS) vest?

The RSUs granted to Robert Barker vest on March 31, 2026. Vesting is conditioned on his continued service through that date, after which the restricted stock units become payable in common stock in line with his deferral election arrangements.

How is the size of Robert Barker’s RSU award at GCT Semiconductor (GCTS) determined?

The RSU award size is based on a fixed dollar amount. The number of RSUs is calculated each quarter from April 1, 2025 through March 31, 2026 by dividing $27,500 by the fair market value per share, which was $1.14 on March 31, 2026.

What does each RSU represent in Robert Barker’s grant at GCT Semiconductor (GCTS)?

Each RSU represents one share of GCT Semiconductor common stock. After vesting, the restricted stock units become payable in common stock with a par value of $0.0001 per share, subject to Barker’s deferral election and the vesting conditions described.

Does Robert Barker pay anything per share for his GCT Semiconductor (GCTS) RSU grant?

No cash price per share is listed for the RSU grant. The Form 4 shows a transaction price of $0.0000 per share, indicating this is a compensation-related equity award rather than an open-market purchase of GCT Semiconductor stock.

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

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

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^*

Barker Robert

(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)
			Class II 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	142,451	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)