Company: APM
Filing Date: 2025-07-15
Form Type: DRS
Source: 0001213900-25-063899
Chunk: 337

Company: Aptorum Group Ltd
Filing Date: 2025-07-15
Form: DRS
Chunk 337
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3, DiamiR issued 2 convertible promissory notes to Samuil R. Umansky and Kira Sheinerman in the approximate amount of $86,826 and
$405,189, respectively. Both notes carry an interest of 4% per annum and are due on December 31, 2026. These notes can be converted into
the securities of the Company issued in the next equity financing the Company conducts following issuance of the notes and at the lowest
price paid for such securities in such financing. Between March 2023 and August 2024, DiamiR amended and restated Kira Sheinerman’s
note from time to time, to reflect additional loans during the period. As of February 28, 2025, the total amount outstanding under both
founder notes is $844,789, including accrued interest and net of recorded discounts. In April 2025 and June 2025, DiamiR amended the convertible
note with Kira Sheinerman, one of its founders and the Executive Director, such that the founder loaned us additional $100,000 and $150,000,
respectively.

On
March 30, 2023, Diamir entered into an insider stock purchase agreement with Kira Sheinerman, pursuant to which it issued her 14,265 shares
of its common stock for $100,000.

<div align='center'>182

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT</div>

The following table sets forth
information with respect to the beneficial ownership, within the meaning of Rule 13d-3 under the Exchange Act, of our Ordinary Shares
as of the date of this prospectus.

| ● | each of our directors and executive officers who beneficially own our Ordinary Shares; and |

| ● | each person known to us to own beneficially more than 5.0% of our Ordinary Shares. |

Beneficial ownership includes voting or investment power with respect
to the securities. Except as indicated below, and subject to applicable community property laws, the persons named in the table have sole
voting and investment power with respect to all Ordinary Shares shown as beneficially owned by them. Percentage of beneficial ownership
of each listed person is based on 5,346,823 Class A Ordinary Shares and 1,796,934 Class B Ordinary Shares outstanding as of the date of
this prospectus.

Information with respect to
beneficial ownership has been furnished by