Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Ortega Juan Luis 2. Issuer Name and Ticker or Trading Symbol Chubb Ltd [CB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Executive Vice President* (Last) (First) (Middle) THE CHUBB BUILDING, 17 WOODBOURNE AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 03/02/2026 (Street) HAMILTON, D0 HM 08 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Shares 03/02/2026 A 452 A $ 0 35,150.93(1) D Common Shares 03/02/2026 A 452 A $ 0 35,602.93(2) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Performance Stock Units

$ 0

03/02/2026

A

V

8,593

(3)

(3)

Common Shares

8,593

$ 0 (3)

8,593

D

Performance Stock Units

$ 0

03/02/2026

A

V

8,593

(4)

(4)

Common Shares

8,593

$ 0 (4)

17,186

D

Performance Stock Units

$ 0

(5)

(5)

Common Shares

(5)

28,436(5)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Ortega Juan Luis THE CHUBB BUILDING 17 WOODBOURNE AVENUE HAMILTON, D0 HM 08			Executive Vice President*

Signatures

/s/ Samantha Froud, Attorney-in-Fact		03/04/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Restricted stock award pursuant to the Chubb Limited 2016 Long-Term Incentive Plan (the "Plan"). Stock vests, in whole or in part, subject to the satisfaction of certain service and performance-based criteria on the later of the third anniversary of the date of the award and the date of certification of satisfaction of performance-based criteria for the three-year performance period. Dividends shall be accumulated and distributed only when, and to the extent, that the shares have vested.
(2)	Restricted stock award pursuant to the Plan, representing a premium performance award with respect to the performance-based restricted stock awards described above. Stock vests, in whole or in part, subject to the satisfaction of certain service and performance-based criteria on the later of the third anniversary of the date of the award and the date of certification of satisfaction of performance-based criteria for the three-year performance period. Shares will not be entitled to vote until vested. Dividends shall be accumulated and distributed only when, and to the extent, that the shares have vested.
(3)	Award of performance stock units ("PSUs") pursuant to the Chubb Limited 2016 Long-Term Incentive Plan (the "Plan") that vests, in whole or in part, subject to the satisfaction of certain service and performance based criteria on the later of the third anniversary of the date of the award and the date of certification of satisfaction of performance based criteria for the three-year performance period. Each PSU represents a contingent right to receive one Common Share, and any PSUs that do not vest will be cancelled. Dividends shall be accumulated and distributed only when, and to the extent that the PSUs have vested.
(4)	Award of PSUs pursuant to the Plan representing a premium performance award with respect to the PSUs described above that vests, in whole or in part, subject to the satisfaction of certain service and performance based criteria on the later of the third anniversary of the date of the award and the date of certification of satisfaction of performance based criteria for the three-year performance period. Each PSU represents a contingent right to receive one Common Share, and any PSUs that do not vest will be cancelled. Dividends shall be accumulated and distributed only when, and to the extent that the PSUs have vested.
(5)	Total includes previously reported PSUs from other tranches with different vesting and expiration dates.
Remarks: * Chubb Group and President, North America Insurance

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