Company: IPCX
Filing Date: 2025-04-16
Form Type: S-1/A
Source: 0001213900-25-032632
Chunk: 335

Company: Inflection Point Acquisition Corp. III
Filing Date: 2025-04-16
Form: S-1/A
Chunk 335
---
 be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser: (i)any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424; (ii)any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by an undersigned registrant; (iii)the portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and (iv)any other communication that is an offer in the offering made by the undersigned registrant to the purchaser. II-4

Signatures Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in New York, New York, on the 16 thday of April, 2025.

| Inflection Point Acquisition Corp. III |     |                                      |
| By:                                    |     | /s/ Michael Blitzer                  |
| Name:                                  |     | Michael Blitzer                      |
| Title:                                 |     | Chief Executive Officer and Chairman |

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

| Name                
 /s/ Michael Blitzer |     | Position                                    
 Chief Executive Officer and Chairman        |     | Date           
 April 16, 2025 |
|:--------------------|:----|:--------------------------------------------|:----|:---------------|
| Michael Blitzer     |     | -principal executive officer                |     |                |
| *                   |     | Chief Financial Officer                     |     | April 16, 2025 |
| Peter Ondishin      |     | -principal financial and accounting officer |     |                |

| *By:   |     | /s/ Michael Blitzer |
| Name:  |     | Michael Blitzer     |
| Title: |     | Attorney-In-Fact    |

II-5

Authorized representative Pursuant to the requirements of Section 6(a) of the Securities Act of 1933, the undersigned has signed this registration statement, solely in its capacity as the duly authorized representative of Inflection Point Acquisition Corp. III, in