| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Shin Hyunsoo | Director, Class II Director | C/O GCT SEMICONDUCTOR HOLDING, INC., 2290 NORTH 1ST STREET, SUITE 201, SAN JOSE | /s/ Edmond Cheng, attorney-in-fact | 06 Jun 2025 | 0002007757 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | GCTS | Common Stock | Purchase | $81,600 | +80,000 | +32% | $1.02 | 327,248 | 04 Jun 2025 | Direct | |
| transaction | GCTS | Common Stock | Purchase | $60,461 | +58,700 | +18% | $1.03 | 385,948 | 05 Jun 2025 | Direct | |
| transaction | GCTS | Common Stock | Purchase | $21,726 | +21,300 | +5.5% | $1.02 | 407,248 | 05 Jun 2025 | Direct |