Feis Equities (QSEA) reports 600,132 shares, 5.26% ownership

Rhea-AI Filing Summary

Quartzsea Acquisition Corp filing: an amendment to a Schedule 13G discloses that Feis Equities LLC and Lawrence M. Feis each beneficially own 600,132 shares, representing 5.26% of ordinary shares based on April 23, 2026 and an outstanding share count of 11,409,900.

The filing lists sole voting and dispositive power over the 600,132 shares and provides the reporting persons' business address and CUSIP G7314B104.

Insights

Corporate Governance Analyst

Minor passive stake disclosed by an affiliated investor and its principal.

The filing shows 600,132 shares held with sole voting and dispositive power by Feis Equities LLC and attributed to Lawrence M. Feis. The stake equals 5.26% of the issuer based on April 23, 2026 outstanding shares.

This disclosure is a routine beneficial-ownership update under Schedule 13G/A; subsequent filings will show changes in holdings or voting power if they occur.

Equity Capital Markets Specialist

Stake size is below typical control thresholds but notable for disclosure.

The reported position of 600,132 shares is explicitly labeled with sole voting and dispositive authority. The filing references an outstanding base of 11,409,900 shares as of April 23, 2026, which determines the 5.26% calculation.

Cash-flow treatment and any planned transactions are not included; future SEC reports would provide transactional details if holders trade.

Key Figures

Shares beneficially owned: 600,132 shares Percent of class: 5.26% Shares outstanding: 11,409,900 shares +3 more

6 metrics

Shares beneficially owned 600,132 shares amount reported for Feis Equities LLC and Lawrence M. Feis

Percent of class 5.26% calculated based on outstanding shares as of April 23, 2026

Shares outstanding 11,409,900 shares outstanding share count cited as of April 23, 2026

CUSIP G7314B104 class identifier for Ordinary Shares (par value .0001)

Filing amendment Amendment No. 3 Schedule 13G/A amendment status

Signature date 06/08/2026 date signatures were provided on the amendment

Key Terms

Schedule 13G/A, Beneficially owned, Sole dispositive power, CUSIP

4 terms

Schedule 13G/A regulatory

"Amendment No. 3) Quartzsea Acquisition Corp - Schedule 13G/A"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficially owned regulatory

"Amount beneficially owned: 600,132 - The percentage set forth"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 600,132"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

CUSIP financial

"CUSIP No.: G7314B104"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

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Available on EDGAR 06/08/2026 - 11:51 AM Accepted by SEC EDGAR 06/08/2026 - 11:50 AM Learn about SEC filing dates

FAQ

What does the Schedule 13G/A disclose for QSEA?

It discloses that Feis Equities LLC and Lawrence M. Feis each beneficially own 600,132 shares. The filing states this equals 5.26% of Quartzsea's 11,409,900 ordinary shares outstanding as of April 23, 2026.

Does Feis Equities have voting control over its QSEA stake?

Yes. The filing states Feis Equities LLC has sole voting power and sole dispositive power over 600,132 shares. The report lists both sole voting and sole dispositive authority for that share count.

On what share count is the 5.26% ownership based?

The percentage is based on 11,409,900 ordinary shares outstanding as of April 23, 2026. That outstanding share figure is cited in the filing's ownership calculation for the reported holdings.

What identifying details are included in the filing for QSEA holdings?

The filing provides the CUSIP G7314B104, the reporting persons' business address at 1740 Waukegan Road Suite 206, Glenview, Illinois, and signatures by Lawrence M. Feis dated 06/08/2026.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

Quartzsea Acquisition Corp

(Name of Issuer)

Ordinary Shares (par value .0001)

(Title of Class of Securities)

G7314B104

(CUSIP Number)

06/01/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): G7314B104

1

Names of Reporting Persons

Feis Equities LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

ILLINOIS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 600,132.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 600,132.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

600,132.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.26 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: Type of Reporting Person: OO - Limited Liability Company

SCHEDULE 13G

CUSIP Number(s): G7314B104

1

Names of Reporting Persons

Lawrence M. Feis

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 600,132.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 600,132.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

600,132.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.26 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Quartzsea Acquisition Corp
(b)	Address of issuer's principal executive offices: Quartzsea Acquisition Corporation, 1185 Avenue of the Americas, Suite 304, New York, NY 10036
Item 2.
(a)	Name of person filing: (i) Feis Equities LLC (ii) Lawrence M. Feis
(b)	Address or principal business office or, if none, residence: The address of the business office of each of the Reporting Persons is: 1740 Waukegan Road Suite 206 Glenview, Illinois 60025
(c)	Citizenship: Citizenship is set forth in Row 4 of the cover page for each Reporting Person hereto and is incorporated hereto by reference for each Reporting Person.
(d)	Title of class of securities: Ordinary Shares (par value .0001)
(e)	CUSIP No.: G7314B104
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 600,132 - The percentage set forth in row 11 of the cover page for each Reporting Person is based on 11,409,900 ordinary shares outstanding as of April 23, 2026, as reported by the Issuer in its annual 10-Q filing for the period ending February 28,2026, filed with the Securities and Exchange Commission on April 28, 2026.
(b)	Percent of class: 5.26 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 600,132
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 600,132
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Feis Equities LLC

Signature:	Lawrence M. Feis
Name/Title:	Managing Member LLC
Date:	06/08/2026

Lawrence M. Feis

Signature:	Lawrence M. Feis
Name/Title:	Individual
Date:	06/08/2026

Exhibit Information

Exhibit A - Joint Filing Agreement