Company: APM
Filing Date: 2025-07-15
Form Type: DRS
Source: 0001213900-25-063899
Chunk: 256

Company: Aptorum Group Ltd
Filing Date: 2025-07-15
Form: DRS
Chunk 256
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 31, 2024, unrecognized stock-based compensation expense related to options for which vesting is considered probable was $24,310,
which is expected to be recognized over a remaining weighted-average performance period of 0.3 years. As of May 31, 2024, unrecognized
stock-based compensation expense related to options for which vesting is not considered probable was $1,093,712.

In the year ended May 31,
2023, DiamiR issued 132,000 restricted stock units, vesting upon a change in control or public listing of DiamiR’s common stock.
In the year ended May 31, 2024, concurrent with the modification of stock options described above, DiamiR terminated outstanding restricted
stock units representing 44,000 shares. Vesting of the units is not considered probable and no compensation expense has been recognized
through the year ended May 31, 2024. The grant-date fair value and unrecognized compensation expense as of May 31, 2023 related to the
restricted stock units amounts to $652,080.

There was no additional stock option activity in the nine months ended
February 28, 2025.

Laboratory Acquisition and Intangible Assets

On April 15, 2021, pursuant
to an Asset Purchase Agreement, DiamiR acquired certain laboratory assets, facilities and operations from Interpace, a provider of molecular
diagnostic tests. The total purchase consideration consisted of 42,820 shares DiamiR common stock with an estimated fair value of $300,000.

At acquisition, the laboratory
was in active operation, providing services to third-parties, and DiamiR accounted for the acquisition as the purchase of a business in
accordance with FASB ASC Topic 805 Business Combinations. Accordingly, DiamiR recorded the assets acquired at their estimated fair values.

The following table summarizes
the purchase price allocation:

| Assets acquired:            |     | Estimated  
 fair value |         |
|:----------------------------|:----|:-----------|--------:|
| Property and equipment      |     | $          | 102,239 |
| Certifications and licenses |     |            | 197,761 |
| Total assets acquired       |     | $          | 300,000 |

Certifications and licenses
represent the laboratory’s CLIA certification and its state operating licenses and intangible assets, which are transferable together
with other related acquired assets and operations under certain conditions.

DiamiR intends