Quartzsea (NASDAQ: QSEA) delays SPAC meeting to vote on extension terms

Filing Impact

(Very High)

Filing Sentiment

(Neutral)

Form Type

8-K

Rhea-AI Filing Summary

Quartzsea Acquisition Corporation reported that its Extraordinary General Meeting of Shareholders has been postponed from June 18, 2026 to June 23, 2026. This meeting will consider changes to the company’s governing documents and trust agreement.

The proposed amendments would allow Quartzsea to extend the deadline to complete its initial business combination from June 19, 2026 to October 19, 2026 through up to four one-month extensions. For each month of extension, the company would deposit into its trust account the lesser of $0.033 per public share or $175,000.

Because of the postponement, the deadline for shareholders to exercise redemption rights is now 5:00 p.m. Eastern Time on June 23, 2026. Voting on the proposals remains open until 11:59 p.m. Eastern Time on June 22, 2026, giving shareholders additional time to cast or change their votes.

Insights

Quartzsea seeks more time to secure a business combination by extending its SPAC deadline.

Quartzsea Acquisition Corporation, a Cayman Islands SPAC, is asking shareholders to approve amendments that would extend its deadline to complete an initial business combination from June 19, 2026 to October 19, 2026 via up to four one-month extensions.

Each extension month would require a deposit into the SPAC trust account equal to the lesser of $0.033 per public share or $175,000. These contributions modestly compensate remaining public shareholders for the added time while the sponsor continues seeking a suitable target.

The meeting delay to June 23, 2026 and extended redemption and voting windows give investors more time to evaluate the extension terms. Actual impact on public holders depends on how many choose redemption versus staying invested through a potential transaction.

8-K Event Classification

Item 8.01 — Other Events

1 item

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Key Figures

New meeting date: June 23, 2026, 5:00 p.m. ET Original SPAC deadline: June 19, 2026 Proposed extended deadline: October 19, 2026 +5 more

8 metrics

New meeting date June 23, 2026, 5:00 p.m. ET Rescheduled Extraordinary General Meeting

Original SPAC deadline June 19, 2026 Initial business combination deadline before proposed extension

Proposed extended deadline October 19, 2026 Latest possible date to complete business combination

Monthly trust contribution per share $0.033 per public share Contribution for each one‑month extension

Maximum monthly trust contribution $175,000 per month Cap on extension contribution into trust account

Number of extensions Up to 4 one‑month extensions Structure of proposed deadline extension

Redemption deadline June 23, 2026, 5:00 p.m. ET Final time for shareholders to redeem

Voting cutoff June 22, 2026, 11:59 p.m. ET Last time to submit votes on proposals

Key Terms

Extraordinary General Meeting, redemption rights, trust account, initial business combination, +1 more

5 terms

Extraordinary General Meeting financial

"its Extraordinary General Meeting of Shareholders (the “Extraordinary General Meeting”), previously scheduled"

redemption rights financial

"the deadline for shareholders to exercise their redemption rights has been extended"

Redemption rights are contractual provisions that allow a holder of a security—such as preferred shares, bonds, or certain fund units—to require the issuer to buy back the security under specified conditions, often at a set price or by a defined formula. For investors they act like a return policy that offers a forced exit or downside protection, affecting a security’s value, liquidity and the issuer’s cash planning.

trust account financial

"contribution to be deposited into the Company’s trust account in connection with the proposed extension"

A trust account is a special bank or brokerage account where assets are held and managed by a designated person or firm (the trustee) for the benefit of another person or group (the beneficiary). It matters to investors because it separates assets from personal or corporate funds, can protect assets, control how and when money is used, and may affect tax or legal rights—think of it as a locked drawer opened only under agreed rules.

initial business combination financial

"extend the deadline to consummate its initial business combination from June 19, 2026 to October 19, 2026"

An initial business combination is the deal in which a special-purpose acquisition company (SPAC) merges with or acquires an operating business to bring that business onto public markets. Think of the SPAC as an empty shell that raises money from investors, then uses that cash to buy a private company—this transaction turns the private company into a public one and often changes its ownership, valuation, and access to capital, so investors should watch for shifts in risk, future growth prospects, and shareholder rights.

amended definitive proxy materials regulatory

"The Company has filed amended definitive proxy materials relating to the Extraordinary General Meeting"

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Understanding 8-K Material Events →

Available on EDGAR 06/18/2026 - 06:02 AM Accepted by SEC EDGAR 06/17/2026 - 05:54 PM

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 17, 2026

Quartzsea Acquisition Corporation

(Exact name of registrant as specified in its charter)

Cayman Islands		001-42555		00-0000000N/A
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

1185 Avenue of the Americas, Suite 304

New York, NY

10036

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code: (212) 612-1400

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation to the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of exchange on which registered
Units, each consisting of one ordinary share and one right	QSEAU	The Nasdaq Stock Market LLC
Ordinary shares, par value $0.0001 per share	QSEA	The Nasdaq Stock Market LLC
Rights, each right entitling the holder to receive one-fifth of one ordinary share	QSEAR	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events

On June 17, 2026, Quartzsea Acquisition Corporation (the “Company”) announced that its Extraordinary General Meeting of Shareholders (the “Extraordinary General Meeting”), previously scheduled to be held at 5:00 p.m., Eastern Time, on June 18, 2026, has been postponed until 5:00 p.m., Eastern Time, on June 23, 2026.

In connection with the postponement of the Extraordinary General Meeting, the deadline for shareholders to exercise their redemption rights has been extended to 5:00 p.m., Eastern Time, on June 23, 2026.

The Company has filed amended definitive proxy materials relating to the Extraordinary General Meeting to seek shareholder approval of amendments to its governing documents and trust agreement that would permit the Company to extend the deadline to consummate its initial business combination from June 19, 2026 to October 19, 2026 through up to four one-month extensions.

The amended definitive proxy materials provide that the monthly contribution to be deposited into the Company’s trust account in connection with the proposed extension will be the lesser of (i) $0.033 per public share and (ii) $175,000 per month.

Voting on the proposals to be considered at the Extraordinary General Meeting will remain open until 11:59 p.m., Eastern Time, on June 22, 2026, and shareholders may continue to submit votes until such time.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

QUARTZSEA ACQUISITION CORPORATION

By:	/s/ Qi Gong
Name:	Qi Gong
Title:	Chief Executive Officer

Date: June 17, 2026

Source: View Original Filing on SEC EDGAR

FAQ

What did Quartzsea Acquisition Corporation (QSEA) announce in this 8-K?

Quartzsea announced it postponed its Extraordinary General Meeting and updated key dates tied to its SPAC extension proposals. Shareholders are being asked to approve amendments allowing more time, and corresponding trust account contributions, to complete an initial business combination.

When will Quartzsea’s rescheduled Extraordinary General Meeting take place?

The Extraordinary General Meeting was postponed to 5:00 p.m. Eastern Time on June 23, 2026. It was previously scheduled for June 18, 2026. At this meeting, Quartzsea shareholders will vote on amendments to extend the company’s deadline to complete its initial business combination.

What SPAC deadline extension is Quartzsea (QSEA) seeking approval for?

Quartzsea is seeking shareholder approval to extend its deadline to consummate an initial business combination from June 19, 2026 to October 19, 2026. The extension would occur through up to four separate one‑month extensions, each requiring a sponsor contribution into the trust account.

How much will Quartzsea contribute to the trust account for each extension month?

For each approved one‑month extension, Quartzsea’s sponsor will deposit the lesser of $0.033 per public share or $175,000 into the trust account. This monthly contribution is designed to benefit public shareholders who keep their capital in the SPAC during the extended search period.

What are the new voting and redemption deadlines for Quartzsea shareholders?

Shareholders may vote on the extension-related proposals until 11:59 p.m. Eastern Time on June 22, 2026. The deadline to exercise redemption rights has been extended to 5:00 p.m. Eastern Time on June 23, 2026, aligning with the rescheduled Extraordinary General Meeting.

Filing Exhibits & Attachments

4 documents

Quartzsea (NASDAQ: QSEA) delays SPAC meeting to vote on extension terms

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