Company: YCY-WT
Filing Date: 2025-09-11
Form Type: S-1/A
Source: 0001213900-25-086752
Chunk: 0

Company: AA Mission Acquisition Corp. II
Filing Date: 2025-09-11
Form: S-1/A
Chunk 0
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As submitted with the U.S. Securities and Exchange Commission on September 11, 2025. Registration No. 333-289768 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 ___________________________________ AA Mission Acquisition Corp. II (Exact name of registrant as specified in its charter) ___________________________________

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

21 Waterway Avenue, STE 300 #9733
The Woodlands, TX 77380
Telephone: 832-336-8887
(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices) ___________________________________ Winston & Strawn LLP
800 Capitol St. STE 2400
Houston, TX 77002
Telephone: (713) 651-2600 (Name, address, including zip code, and telephone number, including area code, of agent for service) ___________________________________ Copies to: Alexandra Low Appleby (Cayman) Ltd. 60 Nexus Way, 9 th Floor Camana Bay, Grand Cayman Cayman Islands KY1-9009 (345) 949-4900

| Michael J. Blankenship    
 Winston & Strawn LLP      
 800 Capitol St. STE 2400  
 Houston, TX 77002         
 Telephone: (713) 651-2600 |     | Mitchell S. Nussbaum      
 David J. Levine           
 Loeb & Loeb LLP           
 345 Park Avenue           
 New York, NY 10154        
 Telephone: (212) 407-4000 |

___________________________________ 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