| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Chun Kukjin | Director, Class I Director | C/O GCT SEMICONDUCTOR HOLDING, INC., 2290 NORTH 1ST STREET, SUITE 201, SAN JOSE | /s/ Edmond Cheng, attorney-in-fact | 06 Mar 2026 | 0002007838 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | GCTS | Common Stock | Gift | -40,000 | -38% | $0.000000* | 65,255 | 23 Feb 2026 | Direct |