v3.25.4

Loss Per Share | 12 Months Ended
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Sep. 30, 2025
Loss Per Share [Abstract] |
LOSS PER SHARE | 13. Loss per share Basic loss per share and diluted loss per share have been calculated in accordance with ASC 260 for the year ended September 30, 2023, 2024 and 2025 as follows:
|  |  |  |  |  |  |  |  |  |  | (Successor) |  |  | (Predecessor) |
|  | For the year ended September 30, 2025 |  |  | For the year ended September 30, 2024 |  |  | From October 12, 2022 to September 30, 2023 |  |  | From October 1, 2022 to October 11, 2022 |
|  | HK$ |  |  | US$ |  |  | HK$ |  |  | HK$ |  |  | HK$ |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to ordinary shareholders of Alpha Technology Group Limited |  |  | (70,409,731 | ) |  |  | (9,049,044 | ) |  |  | (5,487,765 | ) |  |  | (6,830,973 | ) |  |  | (156,387 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of ordinary shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
— Basic |  |  | 16,462,500 |  |  |  | 16,462,500 |  |  |  | 15,262,500 |  |  |  | 13,250,000 |  |  |  | 20,000 |
— Diluted |  |  | 16,432,830 |  |  |  | 16,432,830 |  |  |  | 14,933,987 |  |  |  | 1,169,808 |  |  |  | — |
Net loss per share attributable to ordinary shareholders |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
— Basic |  |  | (4 | ) |  |  | * |  |  |  | — |  |  |  | (1 | ) |  |  | (8 | )
— Diluted |  |  | (4 | ) |  |  | * |  |  |  | — |  |  |  | (6 | ) |  |  | — |
* | The balance represents an amount less than US$1.

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