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): June 24, 2026

CANTOR EQUITY PARTNERS I, INC.

(Exact name of registrant as specified in its charter)

110 East 59th Street

New York, NY 10022

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (212) 938-5000

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. ☐

Item 8.01 Other Events.

Postponement of Extraordinary General Meeting of Shareholders

On June 24, 2026, Cantor Equity Partners I, Inc., a Cayman Islands exempted company (the “CEPO”) issued a press release (the “Press Release”) announcing that its upcoming extraordinary general meeting of shareholders (the “Meeting”) to approve its proposed initial business combination, which was initially scheduled for June 26, 2026, will be postponed to 10:00 a.m., Eastern Time on July 2, 2026. At the Meeting, shareholders of CEPO will be asked to vote on proposals to approve, among other things, CEPO’s proposed initial business combination with BSTR Holdings, Inc., a Delaware corporation (“Pubco”), BSTR Holdings (Cayman), a Cayman Islands exempted company (the “Seller”), BSTR Newco, LLC, a Delaware limited liability company and a wholly owned subsidiary of the Seller (“Newco”), and the other parties thereto (the “Business Combination”).

As previously disclosed, CEPO, Pubco, Seller, Newco and the other parties thereto entered into a business combination agreement on July 16, 2025 (as may be amended and/or amended and restated, the “Business Combination Agreement”) with respect to the Business Combination (the Business Combination, together with the transactions contemplated by the Business Combination Agreement and the private placements entered into by CEPO, Pubco and Newco with certain private placement investors (the “Private Placement Investments”), the “Proposed Transactions”).

As a result of this change, the Meeting will now be held at 10:00 a.m., Eastern time, on July 2, 2026, at the office of Ellenoff Grossman & Schole LLP located at 1345 Avenue of the Americas, New York, New York 10105 and via a live webcast at https://www.cstproxy.com/cantorequitypartnersi/2026 and the deadline for holders of CEPO’s Class A ordinary shares issued in its initial public offering to submit their shares for redemption in connection with the Business Combination is being extended to 5:00 p.m., Eastern time, on June 30 2026.

The proposed resolutions to be considered at the Meeting remain the same as that set out in the definitive proxy statement and other relevant documents that have been mailed to shareholders of CEPO as of the record date of June 5, 2026. CEPO plans to continue to solicit proxies from shareholders during the period prior to the Meeting. Only the holders of CEPO’s ordinary shares as of the close of business on June 5, 2026, the record date for the Meeting, are entitled to vote at the Meeting.

A copy of the Press Release is attached hereto as Exhibit 99.1 and incorporated herein by reference.

Forward-Looking Statements

This Current Report on the Form 8-K (the “Current Report”) contains certain forward-looking statements within the meaning of the U.S. federal securities laws with respect to the parties and the Proposed Transactions, including, expectations, hopes, beliefs, intentions, plans, prospects, strategies and other statements relating to CEPO, Pubco, Newco and statements regarding the anticipated benefits and timing of the completion of the Proposed Transactions, the satisfaction of the closing conditions of the Proposed Transactions, and any expectations, intentions, strategies, assumptions or beliefs about future events, results of operations or performance or that do not solely relate to historical or current facts. These forward-looking statements generally are identified by the words “believe,” “project,” “expect,” “anticipate,” “estimate,” “intend,” “strategy,” “future,” “opportunity,” “potential,” “plan,” “may,” “should,” “will,” “would,” “will be,” “will continue,” “will likely result,” and similar expressions.

Forward-looking statements are predictions, projections and other statements about future events or conditions that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this Current Report, including, but not limited to: the risk that the Proposed Transactions may not be completed in a timely manner or at all, which may adversely affect the price of CEPO’s securities; the risk that the Business Combination may not be completed by CEPO’s business combination deadline; the failure by the parties to the Business Combination to satisfy the conditions to the consummation of the Business Combination, including the approval of CEPO’s shareholders, or any of the Private Placement Investments; failure to realize the anticipated benefits of the Proposed Transactions; the level of redemptions of CEPO’s public shareholders which may reduce the public float of, reduce the liquidity of the trading market of, and/or maintain the quotation, listing, or trading of the Class A ordinary shares of CEPO or the Class A stock of Pubco (“Pubco Class A Stock”); the lack of a third-party fairness opinion in determining whether or not to pursue the Business Combination; the failure of Pubco to obtain or maintain the listing of its securities any stock exchange on which Pubco Class A Stock will be listed after the closing of the Business Combination; costs related to the Proposed Transactions and as a result of becoming a public company; changes in business, market, financial, political and regulatory conditions; risks relating to Pubco’s anticipated operations and business, including the highly volatile nature of the price of Bitcoin; the risk that Pubco’s stock price will be highly correlated to the price of Bitcoin and the price of Bitcoin may decrease at any time after the Closing of the Proposed Transactions; risks related to increased competition in the industries in which Pubco will operate; risks relating to significant legal, commercial, regulatory and technical uncertainty regarding Bitcoin; risks relating to the treatment of crypto assets for U.S. and foreign tax purposes; risks that after consummation of the Business Combination, Pubco experiences difficulties managing its growth and expanding operations; challenges in implementing Pubco’s business plan, including Bitcoin accumulation at scale, active Bitcoin treasury management, including alpha strategies and yield strategies and development of and services related to Bitcoin-focused financial and technology infrastructure, due to operational challenges, significant competition and regulation; the outcome of any potential legal proceedings that may be instituted against CEPO, Pubco, Newco or others following announcement of the Business Combination; and those risk factors discussed in documents of CEPO, Pubco or Newco filed, or to be filed, with the SEC.

The foregoing list of risk factors is not exhaustive. You should carefully consider the foregoing factors and the other risks and uncertainties described in the “Risk Factors” section of the Proxy Statement (as defined below), the final prospectus of CEPO dated as of January 6, 2025 and filed by CEPO with the SEC on January 7, 2025, CEPO’s Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q on file, and to be filed, with the SEC and the Registration Statement, and other documents filed by CEPO, Pubco and Newco from time to time with the SEC. These filings do or will identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. There may be additional risks that none of CEPO, Pubco and Newco presently know or that none of CEPO, Pubco and Newco currently believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements.

Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and none of CEPO, Pubco and Newco assume any obligation or intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise. None of CEPO, Pubco and Newco give any assurance that any of CEPO, Pubco or Newco will achieve its expectations. The inclusion of any statement in this Current Report does not constitute an admission by CEPO, Pubco, Newco or any other person that the events or circumstances described in such statement are material.

Additional Information

Pubco and Newco have filed a Registration Statement on Form S-4 with the SEC, which has been declared effective by SEC (the “Registration Statement”) on June 5, 2026, which includes a definitive proxy statement of CEPO and a prospectus in connection with the Proposed Transactions (the “Proxy Statement/Prospectus”). The definitive proxy statement of CEPO which was filed by CEPO with the SEC on June 5, 2026 (the “Proxy Statement”) and other relevant documents have been mailed to shareholders of CEPO as of the record date of June 5, 2026 that was established for voting on the Business Combination and other matters as described in the Proxy Statement/Prospectus. This Current Report does not contain all of the information that should be considered concerning the Proposed Transactions and is not intended to form the basis of any investment decision or any other decision in respect of the Proposed Transactions. BEFORE MAKING ANY VOTING OR INVESTMENT DECISION, SHAREHOLDERS OF CEPO AND OTHER INTERESTED PARTIES ARE URGED TO READ, THE PROXY STATEMENT/PROSPECTUS, AND ALL OTHER RELEVANT DOCUMENTS FILED OR THAT WILL BE FILED WITH THE SEC IN CONNECTION WITH CEPO’S SOLICITATION OF PROXIES FOR THE EXTRAORDINARY GENERAL MEETING OF ITS SHAREHOLDERS TO BE HELD TO APPROVE THE PROPOSED TRANSACTIONS AND OTHER MATTERS AS DESCRIBED IN THE PROXY STATEMENT/PROSPECTUS BECAUSE THESE DOCUMENTS WILL CONTAIN IMPORTANT INFORMATION ABOUT CEPO, NEWCO, PUBCO AND THE PROPOSED TRANSACTIONS. Investors and security holders will also be able to obtain copies of the Registration Statement and the Proxy Statement/Prospectus and all other documents filed or that will be filed with the SEC by CEPO, Pubco and Newco, without charge, once available, on the SEC’s website at www.sec.gov or by directing a request to: Cantor Equity Partners I, Inc., 110 East 59th Street, New York, NY 10022; e-mail: CantorEquityPartners@cantor.com, or upon written request to BSTR Holdings, Inc., via email at bstr@blockstreamcapitalpartners.com, respectively.

NEITHER THE SEC NOR ANY STATE SECURITIES REGULATORY AGENCY HAS APPROVED OR DISAPPROVED THE PROPOSED TRANSACTIONS DESCRIBED HEREIN, PASSED UPON THE MERITS OR FAIRNESS OF THE BUSINESS COMBINATION OR ANY RELATED PROPOSED TRANSACTIONS OR PASSED UPON THE ADEQUACY OR ACCURACY OF THE DISCLOSURE IN THIS CURRENT REPORT. ANY REPRESENTATION TO THE CONTRARY CONSTITUTES A CRIMINAL OFFENSE.

The convertible notes and shares of preferred stock to be issued by Pubco, the Class A ordinary shares to be issued by CEPO and the Class A membership interests to be issued by Newco, in each case, pursuant to the Private Placement Investments, as well as the non-voting units of Newco to be issued in exchange for the Class A membership interests of Newco at the closing of the Business Combination pursuant to the Business Combination Agreement have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act.

Participants in The Solicitation

CEPO, Pubco, Newco and their respective directors and executive officers may be deemed under SEC rules to be participants in the solicitation of proxies from CEPO’s shareholders in connection with the Business Combination. A list of the names of such directors and executive officers, and information regarding their interests in the Business Combination and their ownership of CEPO’s securities are contained in CEPO’s filings with the SEC, including the Proxy Statement, CEPO’s Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q. Additional information regarding the interests of the persons who may, under SEC rules, be deemed participants in the solicitation of proxies of CEPO’s shareholders in connection with the Business Combination, including the names and interests of Newco’s and Pubco’s directors and executive officers, is set forth in the Registration Statement and Proxy Statement.

No Offer Or Solicitation

This Current Report is for informational purposes only and does not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which the offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

The following exhibit is filed herewith:

SIGNATURE

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.

Dated: June 24, 2026

ATTACHMENTS / EXHIBITS

PRESS RELEASE, DATED JUNE 24, 2026