8-K

Date: December 19, 2025

INHIBIKASE THERAPEUTICS, INC.

/s/ Mark Iwicki

Mark Iwicki

Chief Executive Officer

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): December 19, 2025

INHIBIKASE THERAPEUTICS, INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware

001-39676

26-3407249

(State or Other Jurisdiction

of Incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

1000 N. West Street, Suite 1200

Wilmington, DE

19801

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s Telephone Number, Including Area Code: (302) 295-3800

N/A

(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 (see General Instruction A.2. below):

☐	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, $0.001 par value

IKT

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 8.01.

Other Events.

On December 19, 2025, Inhibikase Therapeutics, Inc. (the “Company”) filed with the Securities and Exchange Commission (the “SEC”) a prospectus supplement (the “Prospectus Supplement”), dated December 19, 2025, with respect to the Company’s existing “at the market offering” program (the “ATM Program”). Pursuant to the Prospectus Supplement, the Company may offer and sell shares of its common stock having an aggregate offering price of up to $185,000,000, from time to time, through Jefferies LLC as sales agent, pursuant to the Open Market Sale Agreement^SM, dated as of June 20, 2025, between the Company and Jefferies LLC (the “Sales Agreement”).The Prospectus Supplement was filed pursuant to the registration statement on Form S-3 (File No. 333-288213) previously filed with the SEC on June 20, 2025 and declared effective by the SEC on June 27, 2025.

A copy of the Sales Agreement is filed as Exhibit 1.1 to this Current Report on Form 8-K and is incorporated herein by reference.

In connection with the filing of the Prospectus Supplement, the Company is filing as Exhibit 5.1 hereto the opinion of its counsel, Goodwin Procter LLP, which opinion is incorporated herein by reference.

Item 9.01.

Financial Statements and Exhibits.

(d) Exhibits.


Number		Description

1.1		Open Market Sale Agreement^SM, dated June 20, 2025, by and between Inhibikase Therapeutics, Inc. and Jefferies LLC (incorporated by reference to Exhibit 1.2 to the Registration Statement on Form S-3 filed by the Registrant on June 20, 2025).

5.1*		Opinion of Goodwin Procter LLP.

23.1*		Consent of Goodwin Procter LLP (included in Exhibit 5.1).

104*		Cover Page Interactive Data File (embedded within the Inline XBRL document).

*	Filed herewith.

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.

SEC Form 8-K filed by Inhibikase Therapeutics Inc.