| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Schlaefer John | President, CEO & Class III Dir, Director | C/O GCT SEMICONDUCTOR HOLDING, INC., 2290 NORTH 1ST STREET, SUITE 201, SAN JOSE | /s/Edmond Cheng, attorney-in-fact | 2025-09-30 | 0001542775 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | GCTS | Common Stock, par value $0.0001 per share | Other | $0 | +555 | +0.27% | $0.00 | 203K | Sep 26, 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The transaction is a distribution of 555 shares of Common Stock, for no consideration, by the Parakletos @ Venture Millennium Fund LP. to the Reporting Person. |