Hudson Bay reports 5.09% stake in Meshflow

Rhea-AI Filing Summary

Meshflow Acquisition Corp Schedule 13G reports that Hudson Bay Capital Management LP (through HB Strategies LLC) and Sander Gerber are the joint reporting persons for an ownership stake of 1,755,999 Class A Ordinary Shares, representing 5.09% of the company's Class A shares. The percentage is calculated using 34,500,000 Class A ordinary shares outstanding as of March 17, 2026, as stated in the issuer's Form 10-K. The filing notes that the Investment Manager may be deemed the beneficial owner of the shares held in the name of HB Strategies LLC and that Mr. Gerber disclaims beneficial ownership while serving as managing member of the general partner.

Insights

Institutional Ownership Analyst

Institutional holder disclosed a 5.09% stake held via HB Strategies LLC.

Hudson Bay Capital Management LP is reported as the investment manager for HB Strategies LLC, listing 1,755,999 shares and a 5.09% ownership percentage based on March 17, 2026 outstanding share count. The filing follows Schedule 13G formatting for passive/beneficial ownership disclosure.

Cash‑flow treatment and sale intentions are not stated in the excerpt; subsequent filings would disclose any transactions or changes in status.

Corporate Governance Specialist

Filing clarifies voting/dispositive powers are shared and includes a joint acquisition statement.

The cover data show shared voting power and shared dispositive power of 1,755,999 shares for each reporting person, indicating holdings are held in an entity structure. The exhibit includes a joint acquisition statement executed May 12, 2026.

This filing is a disclosure of ownership rather than an active transaction; governance implications depend on future voting behavior disclosed in further reports.

Key Figures

Beneficially owned shares: 1,755,999 shares Percent of class: 5.09% Shares outstanding used: 34,500,000 shares

3 metrics

Beneficially owned shares 1,755,999 shares reported for Hudson Bay/HB Strategies LLC

Percent of class 5.09% calculated using outstanding shares as of March 17, 2026

Shares outstanding used 34,500,000 shares Class A ordinary shares outstanding as of March 17, 2026

Key Terms

beneficially owned, shared dispositive power, joint acquisition statement, Schedule 13G

4 terms

beneficially owned regulatory

"Amount beneficially owned: The information required by Item 4(a) is 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.

shared dispositive power regulatory

"Shared Dispositive Power 1,755,999.00"

joint acquisition statement regulatory

"JOINT ACQUISITION STATEMENT PURSUANT TO RULE 13d-1(k)"

Schedule 13G regulatory

"Item 1. (a) Name of issuer: Meshflow Acquisition Corp"

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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does Hudson Bay Capital report in MESH?

Hudson Bay reports beneficial ownership of 1,755,999 shares, equal to 5.09%. The filing calculates the percentage using 34,500,000 Class A shares outstanding as of March 17, 2026, and shows the shares are held in HB Strategies LLC.

Does Sander Gerber directly own the reported MESH shares?

Mr. Gerber is listed as a reporting person but disclaims beneficial ownership. He is the managing member of the general partner of the Investment Manager; the shares are held in HB Strategies LLC and reported via Hudson Bay Capital Management LP.

What voting and dispositive powers are reported for the 1,755,999 shares?

The filing shows shared voting power and shared dispositive power of 1,755,999 shares. Sole voting and dispositive powers are reported as 0.00 for the reporting persons on the cover data included in the excerpt.

What outstanding share count was used to calculate the 5.09% ownership?

The percentage uses 34,500,000 Class A ordinary shares outstanding. That outstanding share figure is tied to the company's Annual Report on Form 10-K for the fiscal year ended December 31, 2025, as reported on March 17, 2026.

Was this a joint filing and who signed it for MESH?

Yes. The Schedule 13G is a joint acquisition statement signed by Hudson Bay Capital Management LP and Sander Gerber. The exhibit shows both parties acknowledge joint filing responsibilities and the signatures are dated May 12, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/12/2026 - 04:45 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Meshflow Acquisition Corp

(Name of Issuer)

Class A Ordinary Shares, $0.0001 par value

(Title of Class of Securities)

G6032N101

(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): G6032N101

1

Names of Reporting Persons

Hudson Bay Capital Management LP

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,755,999.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,755,999.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,755,999.00

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)

5.09 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

CUSIP Number(s): G6032N101

1

Names of Reporting Persons

Sander Gerber

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 0.00
6	Shared Voting Power 1,755,999.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,755,999.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,755,999.00

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)

5.09 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Meshflow Acquisition Corp
(b)	Address of issuer's principal executive offices: 406 N. Sangamon Street Chicago, Illinois 60642
Item 2.
(a)	Name of person filing: This statement is filed by Hudson Bay Capital Management LP (the "Investment Manager") and Mr. Sander Gerber ("Mr. Gerber"), who are collectively referred to herein as "Reporting Persons."
(b)	Address or principal business office or, if none, residence: The address of the business office of each of the Reporting Persons is 290 Harbor Dr., Stamford, CT 06902.
(c)	Citizenship: The Investment Manager is a Delaware limited partnership. Mr. Gerber is a United States citizen.
(d)	Title of class of securities: Class A Ordinary Shares, $0.0001 par value
(e)	CUSIP Number(s): G6032N101
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: The information required by Item 4(a) is set forth in Row 9 of the cover page for each of the Reporting Persons and is incorporated herein by reference. The percentage set forth in this Schedule 13G is calculated based upon an aggregate of 34,500,000 Class A ordinary shares, par value $0.0001 (the "Class A Ordinary Shares") of Meshflow Acquisition Corp. (the "Company") outstanding as of March 17, 2026, as reported in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2025 filed with the Securities and Exchange Commission on March 17, 2026. The Investment Manager serves as the investment manager to HB Strategies LLC, in whose name the securities reported herein are held. As such, the Investment Manager may be deemed to be the beneficial owner of all Class A Ordinary Shares held by HB Strategies LLC. Mr. Gerber serves as the managing member of Hudson Bay Capital GP LLC, which is the general partner of the Investment Manager. Mr. Gerber disclaims beneficial ownership of these securities.
(b)	Percent of class: 5.09%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information required by Item 4(c)(i) is set forth in Row 5 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
	(ii) Shared power to vote or to direct the vote: The information required by Item 4(c)(ii) is set forth in Row 6 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
	(iii) Sole power to dispose or to direct the disposition of: The information required by Item 4(c)(iii) is set forth in Row 7 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
	(iv) Shared power to dispose or to direct the disposition of: The information required by Item 4(c)(iv) is set forth in Row 8 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
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.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. See Item 4(a).
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 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.

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.

Hudson Bay Capital Management LP

Signature:	/s/ Sander Gerber
Name/Title:	Sander Gerber, Authorized Signatory
Date:	05/12/2026

Sander Gerber

Signature:	/s/ Sander Gerber
Name/Title:	Sander Gerber, individually
Date:	05/12/2026

Exhibit Information

EXHIBIT 99.1 JOINT ACQUISITION STATEMENT PURSUANT TO RULE 13d-1(k) The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint acquisition statements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate. DATED: May 12, 2026 HUDSON BAY CAPITAL MANAGEMENT LP By: /s/ Sander Gerber Name: Sander Gerber Title: Authorized Signatory /s/ Sander Gerber SANDER GERBER