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 9, 2025

Edesa Biotech, Inc.

(Exact Name of Registrant as Specified in its Charter)

British Columbia, Canada

001-37619

N/A

(State or Other Jurisdiction

of Incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

100 Spy Court

Markham, Ontario, Canada L3R 5H6

(Address of Principal Executive Offices)

(289) 800-9600

Registrant’s telephone number, including area code

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 exchange on which registered
Common Shares		EDSA		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 September 9, 2025, Edesa Biotech, Inc. (the “Company”), filed a prospectus supplement (the “Prospectus Supplement”) with the U.S. Securities and Exchange Commission (the “SEC”) in connection with the Company’s “at the market offering” program for the offer and sale of up to $4,006,544 of the Company’s common shares, without par value (the “Common Shares”), from time to time through H.C. Wainwright & Co., LLC (“Wainwright”), as sales agent, pursuant to the Company’s existing At the Market Offering Agreement (the “ATM Agreement”), dated October 4, 2024. As of the date hereof, the Company has sold an aggregate of $837,134 of Common Shares pursuant to the ATM Agreement and the related prospectus supplement, dated October 4, 2024 to the Company’s Registration Statement on Form S-3 (333-266604).

The offer and sale of additional Common Shares by the Company under the ATM Agreement will be made pursuant to the Prospectus Supplement, dated September 9, 2025, and the accompanying base prospectus, dated September 9, 2025, contained therein, which together form a part of the Company’s shelf registration statement on Form S-3 (File No. 333-288966), initially filed with the SEC on July 25, 2025 and declared effective by the SEC on September 9, 2025 (the “Registration Statement”).

Fasken Martineau DuMoulin LLP, counsel to the Company, has issued a legal opinion relating to the validity of the $4,006,544 Common Shares that may be offered and sold pursuant to the ATM Agreement and related Prospectus Supplement. A copy of such legal opinion, including the consent included therein, is attached as Exhibit 5.1 to this Current Report on Form 8-K.

This Current Report on Form 8-K shall not constitute an offer to sell or the solicitation of an offer to buy the Common Shares discussed herein, nor shall there be any sale of such securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

The following exhibits are furnished with this Current Report on Form 8-K:

Exhibit Number		Exhibit Description
5.1		Opinion of Fasken Martineau DuMoulin LLP
23.1		Consent of Fasken Martineau DuMoulin LLP (included in Exhibit 5.1)
104		Cover Page Interactive Data File (the cover page XBRL tags are embedded within in the inline XBRL document)

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.

	Edesa Biotech, Inc.

Date: September 9, 2025	By:	/s/ Peter Weiler
	Name:	Peter Weiler
	Title:	Chief Financial Officer

Edesa Biotech, Inc. 8-K