Company: QSEA
Filing Date: 2025-03-11
Form Type: S-1/A
Source: 0001829126-25-001676
Chunk: 12

Company: Quartzsea Acquisition Corp
Filing Date: 2025-03-11
Form: S-1/A
Chunk 12
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 |                | 2.69 |     |                | (0.42 | ) |
| Dilution to public shareholders                                           |     | $                               | 2.91 |     | $              | 3.96 |     | $              | 5.64 |     | $              |  8.75 |   |

| (1) | The numbers set forth in this column assume that 1,725,000 public shares, or 25%, of 6,900,000 public shares are redeemed.  |
| (2) | The numbers set forth in this column assume that 3,450,000 public shares, or 50%, of 6,900,000 public shares are redeemed.  |
| (3) | The numbers set forth in this column assume that 5,175,000 public shares, or 75%, of 6,900,000 public shares are redeemed.  |
| (4) | The numbers set forth in this column assume that 6,900,000 public shares, or 100%, of 6,900,000 public shares are redeemed. |

Our Sponsor and members of our management team will directly or indirectly own our securities following this offering, and accordingly, they may have a conflict of interest in determining whether a particular target business is an appropriate business with which to effectuate our initial business combination. Additionally, each of our officers and directors presently has, and any of them in the future may have additional, fiduciary, contractual or other obligations or duties to one or more other entities pursuant to which such officer or director is or will be required to present a business combination opportunity to such entities. See the sections titled “Proposed Business — Sourcing of Potential Business Combination Targets” and “Management — Conflicts of Interest” for more information.

The underwriters are offering the units on a firm commitment basis. SPAC Advisory Partners, acting as the sole book-running manager and representative of the underwriters, expects to deliver the units to purchasers on or about [●], 2025.

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

SPAC Advisory Partners

a division of Kingswood Capital Partners LLC

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

<div align='center'>Table of Contents</div>

| Prospectus Summary                                                                    |     |   1 |
| Cautionary Note Regarding Forward-Looking Statements                                  |     |  34 |
| Summary Risk Factors                                                                  |