Form 8-K

8-K — EXICURE, INC.

Accession: 0001193125-26-392654

Filed: 2026-09-16

Period: 2026-09-16

CIK: 0001698530

SIC: 2834 (PHARMACEUTICAL PREPARATIONS)

Item: Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

Documents

8-K — xcur-20260916.htm (Primary)

EX-99.1 (xcur-ex99_1.htm)

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8-K

8-K (Primary)

Filename: xcur-20260916.htm · Sequence: 1

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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): September 16, 2026

Exicure, Inc.

(Exact name of Registrant as Specified in Its Charter)

Delaware

001-39011

81-5333008

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

103 Foulk Road #202

Wilmington, Delaware

19803

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s Telephone Number, Including Area Code: 847 673-1700

(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

XCUR

The Nasdaq Stock Market LLC

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 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

Nasdaq Extension to Regain Compliance with Stockholders’ Equity Requirement

As previously disclosed, on June 5, 2026, Exicure, Inc. (the “Company”) received a notification letter from the Listing Qualifications Department of The Nasdaq Stock Market LLC (“Nasdaq”) indicating that the Company was not in compliance with Nasdaq Listing Rule 5550(b)(1), which requires a listed company to maintain a minimum of $2.5 million in stockholders’ equity. At that time, the Company also did not satisfy the alternative continued listing standards based on market value of listed securities or net income from continuing operations.

On September 10, 2026, the Company received a letter from Nasdaq granting the Company an extension through December 2, 2026 to regain compliance with Nasdaq Listing Rule 5550(b)(1).

Under the terms of the extension, the Company must complete its compliance initiatives and publicly demonstrate compliance with the applicable stockholders’ equity requirement on or before December 2, 2026. Nasdaq will continue to monitor the Company’s ongoing compliance with the requirement, including through the Company’s next periodic report.

The extension does not constitute a determination that the Company has regained compliance with Nasdaq’s continued listing requirements. If the Company does not satisfy the terms of the extension, Nasdaq may issue a written determination to delist the Company’s common stock, which the Company would have the right to appeal to a Nasdaq Hearings Panel.

On September 16, 2026, the Company issued a press release announcing its receipt of the Nasdaq extension. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

Exhibit No.

Exhibit Description

99.1

_Nasdaq-Extension-Press Release

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 hereunto duly authorized.

EXICURE, Inc.

Date:

16 September 2026

By:

/s/ Jung Soo Kim

Jung Soo Kim

Chief Executive Officer

EX-99.1

Filename: xcur-ex99_1.htm · Sequence: 2

EX-99.1

Exicure Receives Nasdaq Extension to Regain Compliance with Stockholders’ Equity Requirement

WILMINGTON, Del., September 16, 2026 – Exicure, Inc. (Nasdaq: XCUR) (“Exicure” or the “Company”) today announced that, on September 10, 2026, it received a letter from the Listing Qualifications Department of The Nasdaq Stock Market LLC (“Nasdaq”) granting the Company an extension through December 2, 2026 to regain compliance with Nasdaq Listing Rule 5550(b)(1).

As previously disclosed, on June 5, 2026, Nasdaq notified the Company that it did not satisfy Nasdaq Listing Rule 5550(b)(1), which requires a listed company to maintain a minimum of $2.5 million in stockholders’ equity. At that time, the Company also did not satisfy the alternative continued listing standards based on market value of listed securities or net income from continuing operations.

The Company intends to continue pursuing its compliance initiatives within the extension period. The extension does not constitute a determination that the Company has regained compliance with Nasdaq’s continued listing requirements, and there can be no assurance that the Company will regain or maintain compliance. If the Company does not satisfy the terms of the extension, Nasdaq may issue a written determination to delist the Company’s common stock, which the Company would have the right to appeal to a Nasdaq Hearings Panel.

About Exicure, Inc.

Exicure, Inc. is a biotechnology company currently pursuing strategic initiatives designed to strengthen its financial position, maximize the value of its assets and establish a foundation for future investment and business growth.

Forward-Looking Statements

This press release contains forward-looking statements, including statements regarding the Company’s plans and ability to complete its compliance initiatives and regain and maintain compliance with Nasdaq’s continued listing requirements.

Forward-looking statements are based on the Company’s current expectations and assumptions and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. These risks and uncertainties include the Company’s ability to complete its planned initiatives, Nasdaq’s acceptance of the Company’s evidence of compliance, the Company’s ability to regain and maintain compliance with Nasdaq’s continued listing requirements, and the other risks described in the Company’s filings with the Securities and Exchange Commission.

The Company undertakes no obligation to update any forward-looking statement except as required by applicable law.

Contact

Exicure, Inc.

Email: pr@exicuretx.com

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