Company: APACU
Filing Date: 2025-09-09
Form Type: S-1/A
Source: 0001829126-25-007247
Chunk: 14

Company: StoneBridge Acquisition II Corp
Filing Date: 2025-09-09
Form: S-1/A
Chunk 14
---
 securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

No offer or invitation, whether directly or indirectly, is being or may be made to the public in the Cayman Islands to subscribe for any of our securities.

|                                              |     | Per Unit |       |     | Total |            |
|:---------------------------------------------|:----|:---------|------:|:----|:------|-----------:|
| Public offering price                        |     | $        | 10.00 |     | $     | 50,000,000 |
| Underwriting discounts and commissions(1)(2) |     | $        |  0.05 |     | $     |    250,000 |
| Proceeds, before expenses, to us             |     | $        |  9.95 |     | $     | 49,750,000 |

| (1) | Does not include certain fees and expenses payable to the underwriter in connection with this offering. In addition, the underwriter or its designees will receive an aggregate of 200,000 Class A ordinary shares (or 230,000 Class A ordinary shares if the underwriter’s over-allotment option is exercised in full), which we refer to in this prospectus as the “representative shares,” as compensation in connection with this offering. See “Underwriting” for a description of compensation and other items of value payable to the underwriter. |

The underwriter is offering the units for sale on a firm commitment basis. Delivery of the units will be made on or about , 2025.

<div align='center'>Sole Book-Running Manager

Maxim Group LLC

, 2025

The date of this prospectus is , 2025</div>

<div align='center'>TABLE OF CONTENTS</div>

|                                                                                       |     | Page |
| Summary                                                                               |     |    1 |
| The Offering                                                                          |     |   18 |
| Summary Financial Data                                                                |     |   41 |
| Risks                                                                                 |     |   42 |
| Risk Factors                                                                          |     |   45 |
| Cautionary Note Regarding Forward-Looking Statements                                  |     |   91 |
| Use of Proceeds                                                                       |     |   92 |
| Dividend Policy                                                                       |     |   96 |
| Dilution                                                                              |     |   97 |
| Capital