GCT director granted 9,259 RSUs in stock award

Barker Robert reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 07/02/2026 - 04:52 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Barker Robert reported acquisition or exercise transactions in this Form 4 filing.

GCT Semiconductor Holding, Inc. director Robert Barker received a stock-based compensation award in the form of 9,259 Restricted Stock Units (RSUs), representing the right to receive an equal number of common shares at no cost. The quarterly award amount is based on dividing $27,500 by the fair market value per share, which was $2.97 on June 30, 2026, rounded down to whole shares. These RSUs vest on March 31, 2027, subject to continued service, and will be settled in common stock according to Barker’s deferral election. Following this grant, he directly holds 151,710 shares of common stock.

Insider Trade Summary

Grant/Award: 9,259 shares

Grant/Award 1 txn

Insider Barker Robert

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	9,259	$0.00	$0.00

Holdings After Transaction: Common Stock — 151,710 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, 2026 through March 31, 2027 (beginning with the quarter ending June 30, 2026) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $2.97 on June 30, 2026, rounded down to the nearest whole share.
3. F3. The RSUs will vest on March 31, 2027, subject to continued service through such date.
4. F4. No expiration date is applicable to restricted stock units.

Key Figures

RSUs granted: 9,259 RSUs Award value per quarter: $27,500 Fair market value per share: $2.97/share +4 more

7 metrics

RSUs granted 9,259 RSUs Quarter ending June 30, 2026

Award value per quarter $27,500 Each calendar quarter from April 1, 2026 to March 31, 2027

Fair market value per share $2.97/share Determined on June 30, 2026

Price per share for grant $0.00/share RSU grant, non-cash equity award

Shares following transaction 151,710 shares Common stock directly held after grant

Vesting date March 31, 2027 RSUs vest subject to continued service

Award period April 1, 2026–March 31, 2027 Quarters when RSU amounts are determined

Key Terms

Restricted Stock Unit ("RSU"), fair market value per share, deferral election, vesting

4 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"

vesting financial

"The RSUs will vest on March 31, 2027, subject to continued service"

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.

FAQ

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

What did GCTS director Robert Barker report in this Form 4?

Robert Barker reported receiving 9,259 Restricted Stock Units as a stock-based compensation award. Each RSU entitles him to one share of GCT Semiconductor common stock, delivered in the future after the award vests and subject to his existing deferral election.

How many GCT Semiconductor (GCTS) RSUs were granted to Robert Barker?

He was granted 9,259 Restricted Stock Units, determined for the quarter ending June 30, 2026. The share count comes from dividing a fixed $27,500 value by the $2.97 fair market value per share, then rounding down to the nearest whole share.

When do Robert Barker’s new GCTS RSUs vest?

The RSUs will vest on March 31, 2027, as long as Barker continues to provide service through that date. Once vested, the RSUs become payable in common stock in line with a prior deferral election he made regarding settlement timing.

How is the quarterly GCTS RSU award value calculated for Robert Barker?

For each calendar quarter from April 1, 2026 through March 31, 2027, the award is set at $27,500. The company divides this amount by the quarter-end fair market value per share, such as $2.97 on June 30, 2026, to determine the number of RSUs.

What is Robert Barker’s total GCT Semiconductor shareholding after this grant?

After this transaction, Barker directly holds 151,710 shares of GCT Semiconductor common stock. This figure reflects his position following the RSU grant reported in the filing, which itself added rights to receive 9,259 additional shares upon future vesting and settlement.

Is Robert Barker’s GCTS Form 4 transaction an open-market buy or a grant?

The transaction is a grant of equity compensation, not an open-market purchase. It is coded as a grant or award acquisition, with a price per share of $0.00, reflecting RSUs that convert into common stock upon vesting rather than a cash share purchase.

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

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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)
06/30/2026

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	06/30/2026		A		9,259(1)(2)(3)(4)	A	$0	151,710	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, 2026 through March 31, 2027 (beginning with the quarter ending June 30, 2026) by dividing $27,500 by the fair market value per share of Common Stock, which was determined to be $2.97 on June 30, 2026, rounded down to the nearest whole share.

3. The RSUs will vest on March 31, 2027, subject to continued service through such date.

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

	/s/ Edmond Cheng, attorney-in-fact	07/02/2026
	** 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)