Chubb (CB)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-21 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Chubb Ltd (CB) CIK: 0000896159 --- Reporting Owner --- Name: SIDWELL DAVID H CIK: 0001282556 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Shares Date: 2026-05-21 | Code: A (Grant or award) Shares: +757 Shares Owned After: 15,514 | Ownership: D (Direct) Footnotes: [F1] Restricted stock award granted as director fees under a Chubb Limited long-term incentive plan (the "Plan"), which meets the requirements of Rule 16b-3. Such restricted stock will vest on the day of the next annual Chubb Limited shareholders meeting, assuming the reporting person is a director of Chubb Limited on such date. [F1] Restricted stock award granted as director fees under a Chubb Limited long-term incentive plan (the "Plan"), which meets the requirements of Rule 16b-3. Such restricted stock will vest on the day of the next annual Chubb Limited shareholders meeting, assuming the reporting person is a director of Chubb Limited on such date. [Transaction #2] Security: Common Shares Date: 2026-05-21 | Code: F (Payment of exercise/tax) Shares: -193 | Price: $330.26 Total Value: $63,740.18 Shares Owned After: 15,321 | Ownership: D (Direct) Footnotes: [F2] Common Shares being withheld in order to pay tax liability. --- Footnotes (Complete Index) --- F1: Restricted stock award granted as director fees under a Chubb Limited long-term incentive plan (the "Plan"), which meets the requirements of Rule 16b-3. Such restricted stock will vest on the day of the next annual Chubb Limited shareholders meeting, assuming the reporting person is a director of Chubb Limited on such date. F2: Common Shares being withheld in order to pay tax liability. --- Signature --- /s/ /s/ Samantha Froud, Attorney-in-Fact (2026-05-26)