W. R. Berkley discloses 5.4% MACI stake on Schedule 13G filing

Rhea-AI Filing Summary

W. R. Berkley Corporation, through its subsidiary Berkley Insurance Company, reports beneficial ownership of 868,489 Class A ordinary shares of Melar Acquisition Corp. I, representing 5.4% of this share class as of the reported date.

The shares are held with shared power to vote and dispose, with no sole voting or dispositive power reported. The filer certifies the position was acquired and is held in the ordinary course of business and not for the purpose of changing or influencing control of Melar Acquisition Corp. I.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Melar Acquisition Corp. I

(Name of Issuer)

Class A ordinary shares, par value $0.0001 per share

(Title of Class of Securities)

G6004G100

(CUSIP Number)

12/31/2025

(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)

SCHEDULE 13G

CUSIP No. G6004G100

1

Names of Reporting Persons

W. R. Berkley Corporation

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 868,489.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 868,489.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

868,489.00

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)

5.4 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

CUSIP No. G6004G100

1

Names of Reporting Persons

Berkley Insurance Company

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 868,489.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 868,489.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

868,489.00

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)

5.4 %

12

Type of Reporting Person (See Instructions)

CO, IC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Melar Acquisition Corp. I
(b)	Address of issuer's principal executive offices: 143 West 72nd Street, 4th Floor, New York, NY, 10023
Item 2.
(a)	Name of person filing: W. R. Berkley Corporation
(b)	Address or principal business office or, if none, residence: 475 Steamboat Road Greenwich, CT 06830
(c)	Citizenship: US
(d)	Title of class of securities: Class A ordinary shares, par value $0.0001 per share
(e)	CUSIP No.: G6004G100
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: 868,489
(b)	Percent of class: 5.4 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 868,489
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 868,489
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 99.1
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.

W. R. Berkley Corporation

Signature:	/s/ Richard M. Baio
Name/Title:	Richard M. Baio/Executive Vice President and Chief Financial Officer
Date:	02/10/2026

Berkley Insurance Company

Signature:	/s/ Richard M. Baio
Name/Title:	Richard M. Baio/Executive Vice President and Treasurer
Date:	02/10/2026

FAQ

What stake does W. R. Berkley report in Melar Acquisition Corp. I (MACI)?

W. R. Berkley reports beneficial ownership of 868,489 Class A ordinary shares of Melar Acquisition Corp. I, representing 5.4% of the class. This holding is disclosed on a Schedule 13G as of the stated event date.

Which entities are listed as reporting persons in the MACI Schedule 13G?

The filing lists W. R. Berkley Corporation and its subsidiary Berkley Insurance Company as reporting persons. Both report the same 868,489 shares of MACI Class A ordinary shares with shared voting and dispositive power.

How much voting power does W. R. Berkley have over MACI shares?

The reporting persons disclose 0 shares with sole voting power and 868,489 shares with shared voting power. They also report the same 868,489 shares with shared dispositive power and no sole dispositive power.

Does the MACI Schedule 13G indicate an attempt to influence control of the company?

The filer certifies the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing the control of Melar Acquisition Corp. I, consistent with a passive ownership stance.

What class of MACI securities is covered by W. R. Berkley’s 13G filing?

The Schedule 13G covers Class A ordinary shares of Melar Acquisition Corp. I, with a par value of $0.0001 per share. The filing identifies these shares using CUSIP number G6004G100.

When did W. R. Berkley’s MACI ownership level trigger this Schedule 13G filing?

The reported date of the event requiring the Schedule 13G filing is December 31, 2025. That date reflects when the ownership position met the reporting threshold for Melar Acquisition Corp. I.