GCT Semiconductor director receives RSU stock grant

TUDER JEFFREY reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 07/07/2026 - 04:03 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

TUDER JEFFREY reported acquisition or exercise transactions in this Form 4 filing.

GCT Semiconductor Holding, Inc. director Jeffrey Tuder reported a compensation-related equity grant. He received 9,259 Restricted Stock Units (RSUs) of common stock on June 30, 2026 at a stated price of $0.00 per share, increasing his direct holdings to 151,190 shares.

Each RSU represents the right to receive one share of common stock after vesting. The quarter’s award size was calculated by dividing $27,500 by the fair market value of $2.97 per share on June 30, 2026. These RSUs are scheduled to vest on March 31, 2027, subject to his continued service.

Insider Trade Summary

Grant/Award: 9,259 shares

Grant/Award 1 txn

Insider TUDER JEFFREY

Role Director

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

Holdings After Transaction: Common Stock — 151,190 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 Grant price per share: $0.00 per share Shares after transaction: 151,190 shares +5 more

8 metrics

RSUs granted 9,259 RSUs Common Stock award granted June 30, 2026

Grant price per share $0.00 per share Stated transaction price for RSU grant

Shares after transaction 151,190 shares Total direct holdings following RSU award

Quarterly award value $27,500 Notional value used to size RSUs each quarter

Fair market value per share $2.97 per share FMV on June 30, 2026 used to calculate RSUs

Award determination period April 1, 2026–March 31, 2027 Calendar quarters over which RSU award size is set

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

Transaction code A (Grant, award, or other acquisition) Non-derivative acquisition of common stock via RSUs

Key Terms

Restricted Stock Unit ("RSU"), fair market value per share, deferral election, par value $0.0001 per share, +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, which was determined to be $2.97"

deferral election financial

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

par value $0.0001 per share financial

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

vesting financial

"The RSUs will vest on March 31, 2027, 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.

FAQ

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

What did GCTS director Jeffrey Tuder report in this Form 4 filing?

Jeffrey Tuder reported a grant of 9,259 RSUs of GCTS common stock. The award was granted on June 30, 2026 at a stated price of $0.00 per share and is part of his director compensation, increasing his direct holdings to 151,190 shares.

How were the 9,259 GCTS RSUs granted to Jeffrey Tuder determined?

The 9,259 GCTS RSUs were based on a notional value of $27,500. The number of RSUs for the quarter ending June 30, 2026 was calculated by dividing $27,500 by the $2.97 fair market value per share, then rounding down to the nearest whole share.

When do Jeffrey Tuder’s newly granted GCTS RSUs vest?

The RSUs are scheduled to vest on March 31, 2027. Vesting is conditioned on his continued service through that date, after which each Restricted Stock Unit converts into one share of GCT Semiconductor Holding, Inc. common stock, par value $0.0001 per share.

What does each GCTS Restricted Stock Unit represent for Jeffrey Tuder?

Each GCTS RSU represents the right to receive one share of common stock. After vesting, the units become payable in common stock in line with a deferral election made by Tuder, effectively delivering one share of GCT Semiconductor Holding, Inc. for each vested RSU.

What are Jeffrey Tuder’s GCTS share holdings after this RSU grant?

After the RSU grant, Jeffrey Tuder directly holds 151,190 GCTS shares. The 9,259 newly awarded RSUs are part of this reported position, reflecting his updated beneficial ownership of GCT Semiconductor Holding, Inc. common stock as of the transaction date.

Does the GCTS RSU award to Jeffrey Tuder have an expiration date?

The RSU award has no stated expiration date. A footnote explains that no expiration date applies to restricted stock units. Instead, the key date is March 31, 2027, when the RSUs vest, assuming Tuder continues his service until that time.

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^*

TUDER JEFFREY

(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 III 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	151,190	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)