Company: APM
Filing Date: 2025-10-06
Form Type: S-4
Source: 0001213900-25-096656
Chunk: 399

Company: Aptorum Group Ltd
Filing Date: 2025-10-06
Form: S-4
Chunk 399
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spectus, there are no options or other grants outstanding under the 2024 Plan, except that the Company entered into employment agreements with executives and compensation arrangements with prospective Board members that provide for options for an aggregate of 360,000shares in the event the Company completes an initial public offering of its stock. Compensation of Directors Dr. Sheinerman is DiamiR’s sole director. DiamiR currently does not have a policy to pay its director for serving on its board or fees for attending scheduled and special meetings of its board of directors.

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DIAMIR’S PRINCIPAL STOCKHOLDERS The following table sets forth certain information regarding the beneficial ownership of our common stock. The information below indicates: •each person who is known by us to be the beneficial owner of more than five percent (5%) of our issued and outstanding shares of common stock; •each of our directors, executive officers and nominees to become directors; and •all directors and executive officers as a group. Beneficial ownership is determined in accordance with the rules of the SEC and is calculated based on 4,440,891shares of common stock outstanding and 0shares of preferred stock outstanding as of September30, 2025. Except as otherwise indicated, each person and each group shown in the table has sole voting and investment power with respect to the shares of common stock. For purposes of the table below, in accordance with Rule 13d -3under the Exchange Act, a person is deemed to be the beneficial owner, for purposes of any shares of common stock, over which he or she has or shares, directly or indirectly, voting or investment power, or of which he or she has the right to acquire beneficial ownership at any time within 60 days after September30, 2025. As used herein, “voting power” is the power to vote or direct the voting of shares and “investment power” includes the power to dispose or direct the disposition of shares. The address for the officers and directors is 116 Village Boulevard, Suite 200, Princeton, NJ 08540.

|                                                             |     |   Shares of common 
 stock beneficially 
              owned |      |     |      |   |
| Name of Beneficial Owner                                    |     |             Number |      |     |    % |   |
| Alidad Mireskandari                                         |     |             74,000 | ​(1) |     |  1.6 | % |
| Kira S. Sheinerman(