Mizuho Financial Group (BAYA) reports 245,564 shares, 9.0% stake

Rhea-AI Filing Summary

Mizuho Financial Group reported beneficial ownership of 245,564 common shares of Bayview Acquisition Corp, representing 9.0% of the class as of 03/31/2026. The filing states sole voting and sole dispositive power over 245,564 shares and notes indirect ownership through a wholly owned subsidiary.

Insights

Corporate Governance Analyst

Passive large-holder disclosure: 245,564 shares (9.0%) reported.

Mizuho Financial Group files a Schedule 13G reporting 245,564 common shares of Bayview Acquisition Corp with sole voting and dispositive power as of 03/31/2026. The schedule indicates parent/subsidiary relationships, naming Mizuho Securities USA LLC as the direct holder.

The filing is a standard passive ownership disclosure under Schedule 13G; its immediate governance implications depend on future filings or changes in ownership percentage.

Key Figures

Filing type: Schedule 13G Shares beneficially owned: 245,564 shares Percent of class: 9.0% +1 more

4 metrics

Filing type Schedule 13G Ownership disclosure filed and signed 05/14/2026

Shares beneficially owned 245,564 shares Reported as of 03/31/2026

Percent of class 9.0% Percent of common shares outstanding as reported

CUSIP 07323B100 Bayview Acquisition Corp common shares

Key Terms

Schedule 13G, Beneficially owned, Parent Holding Company

3 terms

Schedule 13G regulatory

"Mizuho Financial Group, Inc. 2 | 4 | Citizenship"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Beneficially owned financial

"Ownership (a) | Amount beneficially owned: 245,564"

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.

Parent Holding Company regulatory

"Parent Holding Company Item 4. | Ownership (a)"

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Bayview Acquisition Corp

(Name of Issuer)

Common Shares

(Title of Class of Securities)

07323B100

(CUSIP Number)

03/31/2026

(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): 07323B100

1

Names of Reporting Persons

Mizuho Financial Group, Inc.

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

JAPAN

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 245,564.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 245,564.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

245,564.00

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)

9.0 %

12

Type of Reporting Person (See Instructions)

FI

Comment for Type of Reporting Person: Mizuho Financial Group, Inc., Mizuho Bank, Ltd. and Mizuho Americas LLC may be deemed to be indirect beneficial owners of said equity securities directly held by Mizuho Securities USA LLC which is their wholly-owned subsidiary.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Bayview Acquisition Corp
(b)	Address of issuer's principal executive offices: 420 Lexington Ave Suite 2446 New York, NY, 10170
Item 2.
(a)	Name of person filing: Mizuho Financial Group, Inc.
(b)	Address or principal business office or, if none, residence: 1-5-5, Otemachi, Chiyoda-ku, Tokyo, 100-8176, Japan
(c)	Citizenship: Japan
(d)	Title of class of securities: Common Shares
(e)	CUSIP Number(s): 07323B100
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).
	Parent Holding Company
Item 4.	Ownership
(a)	Amount beneficially owned: 245,564
(b)	Percent of class: 9.0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 245,564
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 245,564
	(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.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit A
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 acquired and are held in the ordinary course of business and 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. By signing below I certify that, to the best of my knowledge and belief, the foreign regulatory scheme applicable to Parent Holding Company is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.

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.

Mizuho Financial Group, Inc.

Signature:	/s/ Takahiro Katsura
Name/Title:	Takahiro Katsura, Managing Director, Global Corporate Function Coordination Department
Date:	05/14/2026

FAQ

What did Mizuho report owning in Bayview Acquisition (BAYA)?

Mizuho reported beneficial ownership of 245,564 common shares of Bayview Acquisition Corp, equal to 9.0% of the class as of 03/31/2026. The filing shows sole voting and dispositive power over those shares.

Which entity directly holds the Bayview shares for Mizuho?

The filing states that the shares are directly held by Mizuho Securities USA LLC, a wholly owned subsidiary, and that Mizuho Financial Group and related entities may be indirect beneficial owners of those shares.

What type of SEC filing did Mizuho submit for this ownership?

Mizuho submitted a Schedule 13G, a passive investor disclosure form indicating beneficial ownership without asserting active control. The filing was signed on 05/14/2026 and reports holdings as of 03/31/2026.

Does the filing show shared voting or disposition power?

No. The Schedule 13G lists sole voting power of 245,564 shares and sole dispositive power of 245,564, with 0 shared voting or dispositive power entries in the reported schedule.

Does this Schedule 13G indicate Mizuho will act as an active controller?

The Schedule 13G is a passive ownership disclosure and does not assert active control. It lists beneficial ownership and voting/dispositive powers but does not state any intent to control or change Bayview Acquisition Corp governance.