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 10, 2025

Trailblazer Merger Corporation I

(Exact Name of Registrant as Specified in its Charter)

Delaware		001-41668		87-3710376
(State or other jurisdiction of incorporation)		(Commission File Number)		(I.R.S. Employer Identification No.)

510 Madison Avenue

Suite 1401

New York, NY

10022

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s telephone number, including area code: (212) 586-8224

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:

☒	Written communications pursuant to Rule 425 under the Securities Act

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act

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	TBMC	The Nasdaq Stock Market LLC
Rights	TBMCR	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 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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 4.01 Changes in Registrant’s Certifying Accountant.

Based on information provided by Marcum LLP (“Marcum”), the independent registered public accounting firm of Trailblazer Merger Corporation I (“we”, “us”, “our”, or “Trailblazer”) and its wholly owned subsidiary, Trailblazer Holdings, Inc. (“Holdings” and together with Trailblazer, the “Company”), CBIZ CPAs P.C. (“CBIZ CPAs”) acquired the attest business of Marcum, effective November 1, 2024. Marcum continued to serve as the Company’s independent registered public accounting firm through June 10, 2025. On June 10, 2025, the Company dismissed Marcum as the Company’s independent registered public accounting firm, and CBIZ CPAs was engaged to serve as the independent registered public accounting firm of the Company for the year ending December 31, 2025, effective immediately. The engagement of CBIZ CPAs was approved by the Audit Committee of Trailblazer’s Board of Directors. The services provided by Marcum will now be provided by CBIZ CPAs.

During the fiscal years ended December 31, 2024 and 2023 and through June 10, 2025 , neither the Company nor anyone on its behalf consulted with CBIZ CPAs regarding (i) the application of accounting principles to any specified transaction, either completed or proposed; or the type of audit opinion that might be rendered on the Company’s consolidated financial statements, and neither a written report nor oral advice was provided to the Company that CBIZ CPAs 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 either the subject of a “disagreement,” as defined in Item 304(a)(1)(iv) of Regulation S-K, or a “reportable event,” as defined in Item 304(a)(1)(v) of Regulation S-K.

The reports of Marcum regarding the Company’s consolidated financial statements for the fiscal years ended December 31, 2024 and 2023, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024, did not contain any adverse opinion or disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope, or accounting principles, except that the reports for the fiscal years ended December 31, 2024 and December 31, 2023 each included an explanatory paragraph relating to substantial doubt about the Company’s ability to continue as a going concern.

During the Company’s two most recent fiscal years ended December 31, 2024 and December 31, 2023, and the subsequent interim period from January 1, 2025 through June 10, 2025, there were (i) no disagreements within the meaning of Item 304(a)(1)(iv) of Regulation S-K between the Company and Marcum on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which disagreements, if not resolved to Marcum’s satisfaction, would have caused Marcum to make reference to the subject matter of the disagreements in connection with its reports on the Company’s consolidated financial statements for such years and (ii) no “reportable events” within the meaning of Item 304(a)(1)(v) of Regulation S-K.

The Company provided Marcum with a copy of the above disclosures and requested that Marcum furnish the Company with a letter addressed to the Securities and Exchange Commission stating whether or not it agrees with the statements made above. A copy of Marcum’s letter dated June 12, 2025 is attached as Exhibit 16.1 to this Current Report on Form 8-K.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number		Description
16.1		Letter from Marcum LLP, dated June 12, 2025 addressed to the Securities and Exchange Commission.

104		Cover Page Interactive Data File (formatted as Inline XBRL)

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.

Dated: June 12, 2025

TRAILBLAZER MERGER CORPORATION I

By:	/s/ Arie Rabinowitz
Name:	Arie Rabinowitz
Title:	Chief Executive Officer

Trailblazer Merger Corporation I filed SEC Form 8-K: Changes in Registrant's Certifying Accountant, Financial Statements and Exhibits