Cover |
Jun. 16, 2026 |
|---|---|
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | This Amendment No. 1 on Form 8-K/A amends the Current Report on Form 8-K filed by Quartzsea Acquisition Corporation (the “Company”) with the Securities and Exchange Commission on June 16, 2026 (the “Original Filing”). The purpose of this Amendment No. 1 is to disclose that, in connection with the postponement of the Extraordinary General Meeting of Shareholders, the deadline for shareholders to exercise redemption rights has been extended to 5:00 p.m., Eastern Time, on June 18, 2026. Except as expressly set forth herein, this Amendment No. 1 does not amend, update or modify any other information contained in the Original Filing. |
| Document Period End Date | Jun. 16, 2026 |
| Entity File Number | 001-42555 |
| Entity Registrant Name | Quartzsea Acquisition Corporation |
| Entity Central Index Key | 0002047455 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 1185 Avenue of the Americas |
| Entity Address, Address Line Two | Suite 304 |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10036 |
| City Area Code | (212) |
| Local Phone Number | 612-1400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one ordinary share and one right | |
| Title of 12(b) Security | Units, each consisting of one ordinary share and one right |
| Trading Symbol | QSEAU |
| Security Exchange Name | NASDAQ |
| Ordinary shares, par value $0.0001 per share | |
| Title of 12(b) Security | Ordinary shares, par value $0.0001 per share |
| Trading Symbol | QSEA |
| Security Exchange Name | NASDAQ |
| Rights, each right entitling the holder to receive one-fifth of one ordinary share | |
| Title of 12(b) Security | Rights, each right entitling the holder to receive one-fifth of one ordinary share |
| Trading Symbol | QSEAR |
| Security Exchange Name | NASDAQ |