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): July 26, 2026

VIREO GROWTH INC.

(Exact name of registrant as specified in its charter)

British Columbia

(State or other jurisdiction of Incorporation)

(612) 999-1606

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

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 x

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. ¨

On July 27, 2026, Vireo Growth Inc., a British Columbia corporation (“Vireo”), and Planet 13 Holdings Inc., a Nevada corporation (“Planet 13”), issued a joint press release announcing the entry into an Agreement and Plan of Merger (the “Merger Agreement”), dated as of July 26, 2026, by and among Vireo, Planet 13 and Supernova Merger Sub Inc., a Nevada corporation and a wholly owned subsidiary of Vireo (“Merger Sub”). Pursuant to the Merger Agreement, Merger Sub will merge with and into Planet 13 (the “Merger”), with Planet 13 continuing as the surviving corporation of the Merger as a direct wholly owned subsidiary of Vireo.

A copy of the joint press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Additional Information and Where to Find It

In accordance with the Merger Agreement, Vireo intends to file with the U.S. Securities and Exchange Commission (the “SEC”) a registration statement on Form S-4 (the “Registration Statement”) which will include a proxy statement/prospectus and certain other related documents, which will serve as both the proxy statement to be distributed to Planet 13’s stockholders in connection with its solicitation for proxies for the vote by its stockholders in connection with the Merger and other matters to be described in the Registration Statement, as well as the prospectus relating to the offer and sale of the securities to be issued to Planet 13’s equity holders in connection with the completion of the Merger. Planet 13 also intends to file relevant materials with the SEC and applicable Canadian securities regulators, including preliminary and definitive proxy statements relating to the Merger. The definitive proxy statement and other relevant documents will be mailed to Planet 13’s stockholders as of the record date established for voting on the Merger. This communication is not a substitute for the Registration Statement, the definitive proxy statement/prospectus or any other document that may be filed with the SEC or be mailed to Planet 13 stockholders in connection with the Merger.

BEFORE MAKING ANY DECISION, PLANET 13 STOCKHOLDERS ARE URGED TO CAREFULLY READ THE REGISTRATION STATEMENT, DEFINITIVE PROXY STATEMENT/PROSPECTUS (INCLUDING ANY AMENDMENTS OR SUPPLEMENTS THERETO) AND ANY OTHER RELEVANT DOCUMENTS FILED OR TO BE FILED WITH THE SEC IN CONNECTION WITH THE MERGER OR INCORPORATED BY REFERENCE INTO THE PROXY STATEMENT AS, IF AND WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE MERGER.

Any vote in respect of resolutions to be proposed at Planet 13’s stockholder meeting to approve Merger or other proposals in relation to the Merger should be made only on the basis of the information contained in Planet 13’s proxy statement/prospectus. You will be able to obtain a free copy of the Registration Statement, proxy statement/prospectus and other related documents (when available) filed with the SEC at the website maintained by the SEC at www.sec.gov or by accessing the Investor Relations section of Planet 13’s website at https://investors.planet13.com/. The information found on, or otherwise accessible through, Planet 13’s website is not incorporated by reference into, nor does it form a part of, this Current Report on Form 8-K or any other document that Planet 13 files with the SEC.

Participants in the Solicitation

Planet 13 and its directors and executive officers and certain of its employees may be deemed to be participants in the solicitation of proxies from Planet 13’s stockholders in connection with the Merger. Information regarding Planet 13’s directors and executive officers is set forth under the captions “Proposal No. 1: Election of Directors,” “Corporate Governance,” “Executive Officers,” “Executive Compensation,” “Director Compensation,” “Executive Compensation Tables,” “Director Compensation” and “Security Ownership of Certain Beneficial Owners and Management” in the definitive proxy statement for Planet 13’s Annual General Meeting of Stockholders, filed with the SEC on April 29, 2026 (the “Annual Meeting Proxy Statement”). To the extent the holdings of Planet 13’s securities by its directors or executive officers have changed since the amounts set forth in the Annual Meeting Proxy Statement, such changes have been or will be reflected on Forms 3, 4 and 5, filed with the SEC.

These documents may be obtained free of charge from the SEC’s website at www.sec.gov or by accessing the Investor Relations section of Planet 13’s website at https://investors.planet13.com/. Additional information regarding the interests of participants in the solicitation of proxies in connection with the Transaction will be included in the proxy statement/prospectus that Vireo expects to file in connection with the proposed Merger and other relevant materials Planet 13 may file with the SEC and applicable Canadian securities regulators.

Vireo, its directors, executive officers, other members of management, and employees, under SEC rules, may be deemed participants in the solicitation of proxies of Planet 13’s stockholders in connection with the Merger. A list of the names of such directors and executive officers and information regarding their interests in Vireo is contained in the sections entitled “Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters” and “Directors, Executive Officers and Corporate Governance” of Vireo’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the SEC on March 17, 2026, and which is available free of charge at the SEC’s website at www.sec.gov. Additional information regarding the interests of such participants will be contained in the Registration Statement when available.

No Offer or Solicitation

This Current Report on Form 8-K is not intended to and shall not constitute an offer to buy or sell or the solicitation of an offer to buy or sell any securities, or a solicitation of any vote or approval, nor shall there be any offer, solicitation or sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made in the United States absent registration under the Securities Act of 1933, as amended (the “Securities Act”), or pursuant to an exemption from, or in a transaction not subject to, such registration requirements. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act. No securities commission or securities regulatory authority in the United States or any other jurisdiction has in any way passed upon the merits of the Merger or the accuracy or adequacy of this communication.

Forward-Looking Information

This Current Report on Form 8-K contains “forward-looking information” or “forward-looking statements” within the meaning of applicable United States and Canadian securities legislation (referred to herein as “forward-looking information”). Forward-looking information contained in Current Report on Form 8-K may be identified by the use of words such as “should,” “believe,” “estimate,” “would,” “looking forward,” “may,” “continue,” “expect,” “expected,” “will,” “likely,” “subject to,” and variations of such words and phrases, or any statements or clauses containing verbs in any future tense and includes statements regarding expectations around the proposed Merger and the expected timing and benefits thereof; the expected closing date; the approximate value of the consideration to be paid in the Merger; the satisfaction or waiver of the closing conditions set out in the Merger Agreement, including receipt of all regulatory approvals; the expectation that the shares of Planet 13 common stock will be delisted from the Canadian Securities Exchange and OTCQX Market and that Planet 13 will cease to be a reporting issuer under applicable U.S. and Canadian securities laws; and Vireo’s expectations around integration of the operations of its recent and announced acquisitions and timing thereof. These statements should not be read as guarantees of future performance or results. Forward-looking information includes both known and unknown risks, uncertainties, and other factors which may cause the actual results, performance, or achievements of Vireo, Planet 13 or their respective subsidiaries to be materially different from any future results, performance, or achievements expressed or implied by the forward-looking statements or information contained in this press release. Forward-looking information is based upon a number of estimates and assumptions of management, believed but not certain to be reasonable, in light of management’s experience and perception of trends, current conditions, and expected developments, as well as other factors relevant in the circumstances, including assumptions in respect of current and future market conditions, the current and future regulatory environment, and the availability of licenses, approvals and permits.

Although Vireo and Planet 13 believe that the expectations and assumptions on which such forward-looking information is based are reasonable, the reader should not place undue reliance on the forward-looking information because neither Vireo nor Planet 13 can give any assurance that they will prove to be correct. Actual results and developments may differ materially from those contemplated by these statements. Forward-looking information is subject to a variety of risks and uncertainties that could cause actual events or results to differ materially from those projected in the forward-looking information. Such risks and uncertainties include, but are not limited to: risks related to receipt of necessary regulatory and third-party approvals for completion of the proposed Merger; risks and uncertainties associated with the proposed Merger, some of which are beyond Vireo’s and Planet 13’s control; Vireo’s and Planet 13’s ability to maintain relationships with suppliers, customers, employees and other third parties as a result of the proposed Merger; the effects of the proposed Merger on Vireo, Planet 13 and the interests of various constituents; subject to the successful outcome of the proposed Merger, the nature, cost, impact and outcome of pending and future litigation, other legal or regulatory proceedings, or governmental investigations and actions; risks related to the timing and content of adult-use legislation in markets where Vireo and Planet 13 currently operate; current and future market conditions, including the market price of the subordinate voting shares of Vireo; risks related to epidemics and pandemics; federal, state, local, and foreign government laws, rules, and regulations, including federal and state laws and regulations in the United States relating to cannabis operations in the United States and any changes to such laws or regulations; operational, regulatory and other risks; execution of business strategy; management of growth; difficulties inherent in forecasting future events; conflicts of interest; risks inherent in an agricultural business; risks inherent in a manufacturing business; liquidity and the ability of Vireo to raise additional financing to continue as a going concern; Vireo’s and Planet 13’s ability to meet the demand for flower in their various markets; Vireo’s ability to dispose of its assets held for sale at an acceptable price or at all; and risk factors set out in Vireo’s Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q and Planet 13’s Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q, which are available on EDGAR with the U.S. Securities and Exchange Commission at www.sec.gov and filed with the Canadian securities regulators and available under Vireo’s and Planet 13’s respective profiles on SEDAR+ at www.sedarplus.com.

The statements in this Current Report on Form 8-K are made as of the date of this release. Except as required by law, neither Vireo nor Planet 13 undertakes any obligation to update any forward-looking statements or forward-looking information to reflect events or circumstances after the date of such statements.

(d) Exhibits.

*Furnished 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.

Date: July 27, 2026

ATTACHMENTS / EXHIBITS

EXHIBIT 99.1

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