Edmond Cheng - 10 Sep 2026 Form 4 Insider Report for GCT Semiconductor Holding, Inc. (GCTS)

Reporting relationship: Chief Financial Officer
Issuer ticker: GCTS
Reported as of: 10 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 14 Sep 2026, 16:25:06 UTC
Prior SEC filing: 23 Sep 2025
Source filing: View source filing
Reporting owner signature: /s/ Edmond Cheng

Key filing fact

Edmond Cheng filed Form 4 for GCT Semiconductor Holding, Inc. (GCTS) on 14 Sep 2026.

Key facts

This page summarizes Edmond Cheng's Form 4 filing for GCT Semiconductor Holding, Inc. (GCTS).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 14 Sep 2026, 16:25.

Change

Previous filing in this sequence was filed on 23 Sep 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001491155 Primary reporting owner

Cheng Edmond

Relationship: Chief Financial Officer
Address: C/O GCT SEMICONDUCTOR HOLDING, INC., 2290 NORTH 1ST STREET, SUITE 201, SAN JOSE
Signature: /s/ Edmond Cheng
Signature date: 14 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GCTS transaction

Common Stock, par value $0.0001 per share

Award

Transaction value
Shares: +145,000
Change %: +96%
Price: $0.000000^*
Shares after: 296,000
Date: 10 Sep 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Represents restricted stock units ("RSU"), which constitute a contingent right to receive one share of common stock, par value $0.0001 per share, of GCT Semiconductor Holding, Inc. The RSUs vest over four years in equal 25% installments on each anniversary of the September 10, 2026 grant date, commencing September 10, 2026, subject to the Reporting Person's continued service with the Issuer.