Company: GCTS
Filing Date: 2025-03-26
Form Type: 424B3
Source: 0000929638-25-001281
Chunk: 145

Company: GCT Semiconductor Holding, Inc.
Filing Date: 2025-03-26
Form: 424B3
Chunk 145
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 compensation included in the Company’s consolidated statements of operations (in thousands):

|                            |     | Year Ended   
 December 31, |  2024 |     |   | 2023 |
|:---------------------------|:----|:-------------|------:|:----|:--|-----:|
| Cost of revenues           |     |              |    44 |     |   |    — |
| Research and development   |     |              |   543 |     |   |   18 |
| Sales and marketing        |     |              |   147 |     |   |    9 |
| General and administrative |     |              | 1,966 |     |   |   16 |
| Total                      |     | $            | 2,700 |     | $ |   43 |

12. Income Taxes Determining the provision for income taxes, income taxes payable, and deferred tax assets and liabilities involves judgment. The Company calculates and provides for income taxes in each of the tax jurisdictions in which it operates, which involves estimating current tax exposures as well as making judgments regarding the recoverability of deferred tax assets in each jurisdiction. The estimates used could differ from actual results, and this may have a significant impact on financial position, operating results and cash flows in future periods.

The domestic and foreign components of loss before provision for income taxes were as follows (in thousands):

|                                        |     | Year Ended   
 December 31, 
 2024         |         |   |     | 2023 |         |   |
|:---------------------------------------|:----|:-------------|--------:|:--|:----|:-----|:--------|:--|
| Domestic                               |     | $            | (15,452 | ) |     | $    | (19,910 | ) |
| Foreign                                |     |              |   3,518 |   |     |      | (2,018  | ) |
| Loss before provision for income taxes |     | $            | (11,934 | ) |     | $    | (21,928 | ) |

72 GCT SEMICONDUCTOR HOLDING, INC. Notes to Consolidated Financial Statements

The provision for income taxes consisted of the following (in thousands):

|                                  |     | Year Ended   
 December 31, | 2024 |     |   | 2023 |
|:---------------------------------|:----|:-------------|-----:|:----|:--