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

Canopy Growth Corporation

(Exact name of registrant as specified in its charter)

(855) 558-9333

(Registrant’s telephone number, including area code)

Not Applicable

(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:

Securities registered pursuant to Section 12(b) of the Act:

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.  ¨

(a) Resignation of Independent Registered Public Accounting Firm

On August 7, 2026, PKF O’Connor Davies, LLP (“PKFOD”), which had been serving as the independent registered public accounting firm of Canopy Growth Corporation (the “Company”), resigned as the Company’s independent registered public accounting firm, effective August 7, 2026 (the “Resignation Date”) due to strategic changes in the desire of the firm to provide services to the cannabis sector. The Audit Committee (the “Audit Committee”) of the board of directors of the Company therefore accepted PKFOD’s resignation on the Resignation Date.

During the fiscal years ended March 31, 2026 and March 31, 2025, and the subsequent interim period through August 7, 2026, there were no disagreements (as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) between the Company and PKFOD on any matter of accounting principles or practices, financial statement disclosures, or auditing scope or procedures, which disagreements, if not resolved to the satisfaction of PKFOD, would have caused it to make reference thereto in its audit report on the financial statements of the Company for such years and subsequent interim period.

The audit report of PKFOD on the Company’s consolidated financial statements for the fiscal years ended March 31, 2026 and March 31, 2025 did not contain an adverse opinion or a disclaimer of opinion and was not qualified or modified as to uncertainty, audit scope or accounting principles, except that:

As discussed in Note 2 to the financial statements, the Company has experienced recurring losses from operations and requires additional capital to fund its operations, which raise substantial doubt about the Company’s ability to continue as a going concern. The Company concluded that the substantial doubt raised about the Company’s ability to continue as a going concern has been alleviated as a result of management’s plans discussed in Note 2. Our opinion is not modified with respect to that matter.

During the fiscal years ended March 31, 2026 and March 31, 2025, and the subsequent interim period through August 7, 2026, there were no “reportable events” within the meaning of Item 304(a)(1)(v) of Regulation S-K, except with respect to:

A material weakness has been identified and included in management’s assessment in that a control designed to review and approve the financial reporting implications of significant technical accounting matters, specifically the classification of equity-linked instruments as either equity or liabilities, was not designed or operating effectively.

The above reportable events were discussed between the Audit Committee and PKFOD, and PKFOD has been authorized by the Company to respond fully to inquiries by MNP LLP (“MNP”), the successor independent registered public accounting firm of the Company, concerning the reportable events.

The Company provided PKFOD with a copy of this Current Report on Form 8-K and requested that PKFOD furnish the Company with a letter addressed to the SEC pursuant to Item 304(a)(3) of Regulation S-K, stating whether PKFOD agrees with the statements made by the Company herein and, if not, stating the respects in which it does not agree. A copy of PKFOD’s letter, dated August 7, 2026, is filed as Exhibit 16.1 hereto.

(b) Engagement of Independent Registered Public Accounting Firm

Also on August 7, 2026, the Audit Committee engaged MNP, a nationally recognized auditing firm in Canada, as the Company’s independent registered public accounting firm for the fiscal year ending March 31, 2027.

During the fiscal years ended March 31, 2026 and March 31, 2025, and through August 7, 2026, neither the Company, nor anyone on its behalf, consulted MNP regarding either (i) the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the financial statements of the Company and neither a written report nor oral advice was provided to the Company that MNP concluded was an important factor considered by the Company in reaching a decision as to any accounting, auditing, or financial reporting issue; or (ii)any matter that was the subject of a disagreement (as defined in Item 304(a)(1)(iv) of Regulation S-K and the related instructions) or a reportable event (as defined in Item 304(a)(1)(v) of Regulation S-K).

(d) Exhibits

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.

Date: August 7, 2026

ATTACHMENTS / EXHIBITS

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