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Form 8-K

sec.gov

8-K — GCT Semiconductor Holding, Inc.

Accession: 0000929638-26-003539

Filed: 2026-09-15

Period: 2026-09-10

CIK: 0001851961

SIC: 3674 (SEMICONDUCTORS & RELATED DEVICES)

Item: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Documents

8-K — form8k.htm (Primary)

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8-K — CURRENT REPORT

8-K (Primary)

Filename: form8k.htm · Sequence: 1

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

Current Report

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported): September 10, 2026

GCT Semiconductor Holding, Inc.

(Exact Name of Registrant as Specified in Its Charter)

001-41013

(Commission File Number)

Delaware

86-2171699

(State or Other Jurisdiction of Incorporation)

(I.R.S. Employer Identification No.)

2290 North 1st Street, Suite 201

San Jose, CA 95131

(Address of principal executive offices, including zip code)

(408) 434-6040

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(g) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange on which registered

Common Stock, par value $0.0001 per share

GCTS

NYSE

Warrants, each whole warrant exercisable for one share of Common Stock for $11.50 per share

GCTS.WS

NYSE

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act

of 1934 (§240.12b-2 of this chapter):

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards

provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain

Officers.

Executive Incentive Bonus Plan

On September 10, 2026, the Compensation

Committee of the Board of Directors (the “Compensation Committee”) of GCT Semiconductor Holding, Inc. (the “Company”) approved an incentive bonus plan for the second half of the 2026 calendar year (the “Plan”), pursuant to which each of the

Company’s executive officers will be eligible to receive a cash bonus based on the achievement of specified Company and individual performance goals. The amount of each bonus will be determined based on the Company’s achievement of specified

2026 revenue targets (“Revenue Target”) and the executive officer’s achievement of individual performance goals (“KPI Goals”), and the calculation of actual bonus amount will be based on a specified weighting between Revenue Target and KPI

Goals.

The target bonus payable to each executive officer of the Company (assuming 100% payout) is as follows:

Name

Title

Target Bonus

(% of base salary for the second half of 2026)

(at 100% performance)

John Schlaefer

Chief Executive Officer

25%

Edmond Cheng

Chief Financial Officer and Corporate Secretary

25%

Alex Sum

Senior Vice President of Sales & Marketing

25%

Jeongmin Kim

Vice President of Engineering and Chief Technology Officer

25%

The description of the Plan above is only a

summary and qualified in its entirety by the Plan, a copy of which will be filed as an exhibit to the Company’s Quarterly Report on Form 10-Q for the quarterly period ending September 30, 2026 to be filed with the Securities and Exchange

Commission.

CFO Compensation

Additionally, on September 10, 2026, the Compensation Committee approved an increase to the annual base salary of

Edmond Cheng, the Company’s Chief Financial Officer, from $304,500 to $330,383, effective October 1, 2026.

SIGNATURE

Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the

undersigned hereunto duly authorized.

GCT SEMICONDUCTOR HOLDING, INC.

September 15, 2026

By:

/s/ Edmond Cheng

Name:

Edmond Cheng

Title:

Chief Financial Officer

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