Company: ONCHW
Filing Date: 2025-06-20
Form Type: S-1/A
Source: 0001213900-25-056307
Chunk: 0

Company: 1RT Acquisition Corp.
Filing Date: 2025-06-20
Form: S-1/A
Chunk 0
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As filed with the United States Securities and Exchange Commission on June 20 , 2025 Registration No. 333- 287941 UNITED STATES
SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ____________________________ Amendment No. 1 to FORM S-1
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933 ____________________________ 1RT Acquisition Corp. (Exact name of registrant as specified in its charter) ____________________________

| Cayman Islands                  |     |                         6770 |     | 33-1579459            |
| (State or other jurisdiction of 
 incorporation or organization)  |     | -Primary Standard Industrial 
   Classification Code Number |     | -I.R.S. Employer      
 Identification Number |

Dan Tapiero
Chief Executive Officer
205 West 28 th Street
2 nd Floor Suite C
New York, New York 10001
315-810-1230 (Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices) ____________________________ 205 West 28 th Street
2 nd Floor Suite C
New York, New York 10001
315-810-1230 (Name, address, including zip code, and telephone number, including area code, of agent for service) ____________________________ Copies to:

| Sean Ewen                    
 Andrew Marmer                
 Willkie Farr & Gallagher LLP 
 787 Seventh Avenue           
 New York, New York 10019     
 (212) 728-8000               |     | Douglas S. Ellenoff                     
 Stuart Neuhauser                        
 Ellenoff Grossman & Schole LLP          
 1345 Avenue of the Americas, 11th Floor 
 New York, New York 10105                
 (212) 370-1300                          |

____________________________ Approximate date of commencement of proposed sale to the public: As soon as practicable after the effective date of this registration statement. If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box : ☐ If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐ If this Form is a post -effective amendment filed pursuant to Rule 462(c) under the Securities