Company: APM
Filing Date: 2025-01-07
Form Type: 6-K
Source: 0001213900-25-001378
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Company: Aptorum Group Ltd
Filing Date: 2025-01-07
Form: 6-K
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 2025

Commission File Number: 001-38764

APTORUM GROUP LIMITED

17 Hanover Square

London W1S 1BN, United Kingdom

(Address of principal executive offices)</div>

Indicate by check mark whether the registrant
files or will file annual reports under cover of Form 20-F or Form 40-F:

<div align='center'>Form 20-F ☒ Form
40-F ☐</div>

Registered Direct Offering

On January 2, 2025, Aptorum Group Limited (the
“Company”) entered into a certain securities purchase agreement (the “Securities Purchase Agreement”)
with certain non-affiliated institutional investors (the “Purchasers”) pursuant to which the Company sold 1,535,000
Class A ordinary shares of the Company (the “Shares”), par value $0.00001 per share (the “Ordinary Shares”)
at a per share price of $2.00 in a registered direct offering, for gross proceeds of $3,070,000 million (the “Offering”).

The Company agreed in the Securities Purchase
Agreement that, subject to certain exceptions, for thirty (30) calendar days following the closing of the Offering (the “Standstill Period”), it would not (i) issue, or enter into any agreement to issue or announce the issuance or proposed issuance of any
Ordinary Shares, or any securities of the Company or its subsidiaries which would entitle the holder thereof to acquire at any time Ordinary
Shares (the “Ordinary Share Equivalents”), or (ii) file any registration statement or amendment or supplement thereto,
other than the Prospectus Supplement contemplated in the Securities Purchase Agreement and the filing of a registration statement on Form
S-8 in connection with any employee benefit plan. In addition, during the Standstill Period, subject to certain exceptions, the Company
is prohibited from effecting or entering into an agreement to effect any issuance by the Company or any of its subsidiaries of Ordinary
Shares or Ordinary Share Equivalents (or a combination of units thereof) involving a Variable Rate Transaction (as defined in the