[SCHEDULE 13G/A] Chubb Ltd SEC Filing

Rhea-AI Filing Summary

Warren E. Buffett, Berkshire Hathaway Inc., and National Indemnity Company report significant ownership in Chubb Limited. As of 09/30/2025, they beneficially owned 31,332,895 shares of Chubb common stock, representing 8.0% of the classshared voting and dispositive power over all of these shares and no sole voting or dispositive power. The filing states that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Chubb Limited.

11/14/2025 - 09:34 PM

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

CHUBB LIMITED

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

H1467J104

(CUSIP Number)

09/30/2025

(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. H1467J104

1

Names of Reporting Persons

Warren E. Buffett

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 31,332,895.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 31,332,895.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

31,332,895.00

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)

8.0 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

CUSIP No. H1467J104

1

Names of Reporting Persons

Berkshire Hathaway 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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 31,332,895.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 31,332,895.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

31,332,895.00

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)

8.0 %

12

Type of Reporting Person (See Instructions)

HC, CO

SCHEDULE 13G

CUSIP No. H1467J104

1

Names of Reporting Persons

National Indemnity 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

NEBRASKA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 31,332,895.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 31,332,895.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

31,332,895.00

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)

8.0 %

12

Type of Reporting Person (See Instructions)

IC, CO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: CHUBB LIMITED
(b)	Address of issuer's principal executive offices: BARENGASSE 32, Zurich, Switzerland CH-8001
Item 2.
(a)	Name of person filing: Warren E. Buffett National Indemnity Company Berkshire Hathaway Inc.
(b)	Address or principal business office or, if none, residence: Warren E. Buffett and Berkshire Hathaway - 3555 Farnam Street, Omaha, Nebraska 68131. National Indemnity Company - 1314 Douglas Street, Omaha, Nebraska 68102
(c)	Citizenship: Warren E. Buffett - United States citizen, National Indemnity Company - Nebraska corporation, Berkshire Hathaway Inc. - Delaware corporation
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP No.: H1467J104
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: See Cover Pages
(b)	Percent of class: See Cover Pages
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: none
	(ii) Shared power to vote or to direct the vote: 31,332,895 shares of common stock
	(iii) Sole power to dispose or to direct the disposition of: none
	(iv) Shared power to dispose or to direct the disposition of: 31,332,895 shares of common stock
Item 5.	Ownership of 5 Percent or Less of a Class.
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.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. See Exhibit A
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.

Warren E. Buffett

Signature:	/s/ Warren E. Buffett
Name/Title:	Warren E. Buffett
Date:	11/14/2025

Berkshire Hathaway Inc.

Signature:	/s/ Warren E. Buffett
Name/Title:	Warren E. Buffett, Chairman of the Board
Date:	11/14/2025

National Indemnity Company

Signature:	/s/ Dale D. Geistkemper
Name/Title:	Dale D. Geistkemper
Date:	11/14/2025

FAQ

How many Chubb (CB) shares do Warren Buffett and Berkshire Hathaway beneficially own?

They report beneficial ownership of 31,332,895 shares of Chubb Limited common stock, as disclosed in the Schedule 13G/A.

What percentage of Chubb Limited (CB) is owned by Berkshire Hathaway and its affiliates?

The filing states that the 31,332,895 shares beneficially owned represent 8.0% of the class of Chubb Limited common stock.

Who are the reporting persons in this Chubb (CB) Schedule 13G/A filing?

The reporting persons are Warren E. Buffett, Berkshire Hathaway Inc., and National Indemnity Company, each reporting the same Chubb Limited share position.

Do Warren Buffett and Berkshire Hathaway have sole or shared voting power over their Chubb (CB) shares?

They report 0 shares with sole voting power and 31,332,895 shares with shared voting power, and the same amounts for dispositive power.

Are the Chubb (CB) shares held by Berkshire Hathaway intended to influence control of the company?

The certification 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 Chubb Limited.

What class of Chubb (CB) securities is reported in this Schedule 13G/A?

The filing covers common stock of Chubb Limited, identified by CUSIP number H1467J104.

Which entity directly holds the Chubb (CB) shares reported by Berkshire Hathaway?

National Indemnity Company, a Nebraska corporation and Berkshire Hathaway subsidiary, is identified in the filing as the entity with 31,332,895 shares subject to shared voting and dispositive power.