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: BOROUGHS TIMOTHY ALAN CIK: 0001577594 Role: Officer (Executive Vice President*) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Shares Date: 2026-05-21 | Code: D (Sale to issuer) Shares: -930 | Price: $0.00 Shares Owned After: 10,339 | Ownership: D (Direct) Footnotes: [F1] Represents the amount of restricted stock forfeited due to partial satisfaction of certain performance based criteria of restricted stock awarded pursuant to the Chubb Limited 2016 Long-Term Incentive Plan. [Transaction #2] Security: Common Shares Date: 2026-05-21 | Code: F (Payment of exercise/tax) Shares: -4,751 | Price: $330.26 Total Value: $1,569,065.26 Shares Owned After: 5,588 | Ownership: D (Direct) Footnotes: [F2] Common Shares being withheld in order to pay tax liability. --- Holdings --- [Holding #1] Security: Common Shares Ownership: I (Indirect) [Holding #2] Security: Common Shares Ownership: I (Indirect) [Holding #3] Security: Common Shares Ownership: I (Indirect) --- Footnotes (Complete Index) --- F1: Represents the amount of restricted stock forfeited due to partial satisfaction of certain performance based criteria of restricted stock awarded pursuant to the Chubb Limited 2016 Long-Term Incentive Plan. F2: Common Shares being withheld in order to pay tax liability. --- Signature --- /s/ /s/ Samantha Froud, Attorney-in-Fact (2026-05-26)