Company: TBMC
Filing Date: 2025-11-28
Form Type: 425
Source: 0001213900-25-115990
Chunk: 0

Company: Trailblazer Merger Corp I
Filing Date: 2025-11-28
Form: 425
Chunk 0
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<div align='center'>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): November 24, 2025

Trailblazer Merger Corporation I(Exact name of registrant as specified in its charter)</div>

| 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 |

<div align='center'>(212) 586-8224(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)</div>

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 (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 Securities Exchange Act of 1934:

| Title for each class |     | Trading Symbol(s) |     | Name of each exchange on which registered |
| Class A 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