Form 8-K

8-K — Niki BioSolutions, Inc.

Accession: 0001213900-26-086639

Filed: 2026-08-07

Period: 2026-08-07

CIK: 0001734005

SIC: 3829 (MEASURING & CONTROLLING DEVICES, NEC)

Item: Other Events

Documents

8-K — ea0300774-8k_nikibio.htm (Primary)

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8-K — CURRENT REPORT

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities

Exchange Act of 1934

Date of Report (Date of earliest event reported):

August 7, 2026

Niki BioSolutions, Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware

001-38764

42-3265309

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

116 Village Boulevard, Suite 200, Princeton, NJ 08540

(Address of Principal Executive Offices, including zip code)

Registrant’s Telephone Number, Including

Area Code: 609-951-2222

Aptorum Group Limited

17 Hanover Square

London W1S 1BN, United Kingdom

(Former Name or Former Address, if Changed Since

Last Report)

Check the appropriate box below if the Form 8-K

filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b)

of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common stock, par value $0.0001 per share

NIKI

The Nasdaq Capital Market

Indicate by check mark whether the registrant

is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2

of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check

mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting

standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events.

As previously reported,

on March 5, 2026, Niki BioSolutions, Inc. (formerly known as Aptorum Group Limited) (the “Company”) received a deficiency letter from the Listing Qualifications

Department of the Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that, for the last 30 consecutive business

days, the closing price for the Company’s common stock had been below the minimum $1.00 per share required for continued

listing on The Nasdaq Capital Market pursuant to Nasdaq Listing Rule 5550(a)(2).

The letter also indicated

that the Company had a compliance period of 180 calendar days, or until September 1, 2026 (the “Compliance Period”), in which

to regain compliance pursuant to Nasdaq Listing Rule 5810(c)(3)(A). The letter further provided that if, at anytime during the Compliance

Period, the Company’s common stock closed at $1.00 per share or more for a minimum of ten consecutive business days, Nasdaq would

provide the Company with written confirmation that it had achieved compliance with the minimum bid price requirement.

On August 4, 2026, the Company

received a letter from Nasdaq notifying the Company that for the last 10 consecutive business days, from July 21, 2026, to August 3, 2026,

the closing bid price of the Company’s common stock had been at $1.00 per share or greater and, therefore, the Company has regained

compliance with Nasdaq Listing Rule 5550(a)(2) and this matter is now closed.

SIGNATURE

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 hereunto

duly authorized.

Dated: August 7, 2026

NIKI BIOSOLUTIONS, INC.

By:

/s/ Ian Huen

Ian Huen

Chief Executive Officer

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