W. R. Berkley reveals 6.5% Kochav Defense stake (KCHV) via 13G/A

Rhea-AI Filing Summary

W. R. Berkley Corporation, through subsidiary Berkley Insurance Company, reports beneficial ownership of 1,686,575 Class A ordinary shares of Kochav Defense Acquisition Corp. This represents 6.5% of the class as of the event date 12/31/2025.

The shares are held with shared voting and shared dispositive power, and no sole voting or dispositive power. The filer certifies the position is held in the ordinary course of business and not for the purpose of changing or influencing control of Kochav Defense Acquisition Corp.

Insights

Equity ownership and disclosure analyst

W. R. Berkley discloses a passive 6.5% stake in Kochav Defense Acquisition Corp.

W. R. Berkley Corporation and its subsidiary Berkley Insurance Company report beneficial ownership of 1,686,575 Class A ordinary shares of Kochav Defense Acquisition Corp., representing 6.5% of the class as of 12/31/2025.

The filing shows shared voting and dispositive power over all reported shares and no sole power. The certification states the position was acquired and is held in the ordinary course of business and not to change or influence control, indicating a passive investment posture under the stated standard.

As a Schedule 13G/A, this mainly updates the market on the size and nature of a significant ownership position. Future ownership levels and any change from passive to control-oriented intent, if they occur, would typically appear in subsequent beneficial ownership disclosures.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Kochav Defense Acquisition Corp.

(Name of Issuer)

Class A Ordinary Shares, par value $0.0001 per share

(Title of Class of Securities)

G5304D106

(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. G5304D106

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 1,686,575.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,686,575.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,686,575.00

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)

6.5 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

CUSIP No. G5304D106

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 1,686,575.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,686,575.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,686,575.00

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)

6.5 %

12

Type of Reporting Person (See Instructions)

CO, IC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Kochav Defense Acquisition Corp.
(b)	Address of issuer's principal executive offices: 575 Fifth Avenue, 14th Floor, New York, NY, 10017
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.: G5304D106
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: 1,686,575
(b)	Percent of class: 6.5 %
(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: 1,686,575
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 1,686,575
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 hold in Kochav Defense Acquisition Corp. (KCHV)?

W. R. Berkley, through Berkley Insurance Company, reports beneficial ownership of 1,686,575 Class A ordinary shares of Kochav Defense Acquisition Corp., representing 6.5% of the class as of December 31, 2025, according to the Schedule 13G/A filing.

Is W. R. Berkley’s ownership in Kochav Defense Acquisition Corp. passive or control-seeking?

The filing states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Kochav Defense Acquisition Corp., indicating a passive investment under the certification language used.

How much voting power does W. R. Berkley report over KCHV shares?

W. R. Berkley and Berkley Insurance Company report 0 shares with sole voting power and 1,686,575 shares with shared voting power. They also report the same number with shared dispositive power and none with sole dispositive power.

Which entities are the reporting persons in this Kochav Defense Acquisition Corp. Schedule 13G/A?

The reporting persons are W. R. Berkley Corporation and its subsidiary Berkley Insurance Company, both organized in Delaware. Each reports beneficial ownership of 1,686,575 Class A ordinary shares, or 6.5% of Kochav Defense Acquisition Corp.’s Class A shares.

What class of Kochav Defense Acquisition Corp. securities is covered in this W. R. Berkley filing?

The disclosure covers Class A ordinary shares of Kochav Defense Acquisition Corp., with a par value of $0.0001 per share, identified by CUSIP G5304D106, as specified in the Schedule 13G/A.

Who signed the W. R. Berkley Schedule 13G/A related to Kochav Defense Acquisition Corp.?

The filing is signed by Richard M. Baio, in his capacities as Executive Vice President and Chief Financial Officer and as Executive Vice President and Treasurer, both signatures dated 02/10/2026, certifying the accuracy of the information provided.