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 March 2026

Commission File Number: 001-38764

APTORUM GROUP LIMITED

17 Hanover Square

London W1S 1BN, United Kingdom

(Address of principal executive offices)

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

Form 20-F ☒ Form 40-F ☐

On March 10, 2026, Aptorum Group Limited (the “Company”) held its 2025 annual meeting of shareholders (the “Annual Meeting”). At the Annual Meeting, the Company’s shareholders voted on two proposals. At the beginning of the Annual Meeting, a total of 2,521,856 shares, consisting of Class A Ordinary Shares and Class B Ordinary Shares, which represents 96.97% of the voting power of the shares entitled to vote at the Annual Meeting, were represented by proxy, which constituted a quorum for the transaction of business.

We are filing this Current Report on Form 6-K to disclose the voting results from the Annual Meeting. The following proposals were voted on:

To re-elect the Class I directors to the Company’s board of directors (the “Board”).

Name	For		Abstain/Withheld
Mr. Justin Wu		180,344,392		73,930
Mr. Douglas Arner		180,344,410		73,912

To approve, ratify and confirm the re-appointment of Marcum Asia CPAs LLP as the Company’s independent auditors for the year ending December 31, 2025, and to authorize the Board of Directors to fix their remuneration.

For		Against		Abstain
180,394,457		23,096		769

There were no broker non-votes with respect to either of Proposals 1 or 2.

The information in this Form 6-K shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

This Form 6-K is hereby incorporated by reference into the registration statements of the Company on Form S-8 (Registration Number 333-232591) and Form F-3 (Registration Number 333-292793) and into each prospectus outstanding under the foregoing registration statements, to the extent not superseded by documents or reports subsequently filed or furnished by the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Aptorum Group Limited

Date: March 11, 2026	By:	/s/ Ian Huen
		Name:	Ian Huen
		Title:	Chief Executive Officer

Aptorum Group Ltd 6-K