Chubb (CB)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-08 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Chubb Ltd (CB) CIK: 0000896159 --- Reporting Owner --- Name: Ortega Juan Luis CIK: 0001784735 Role: Officer (Executive Vice President*) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Shares Date: 2026-06-08 | Code: M (Exercise of derivative) Shares: +3,886 | Price: $139.01 Total Value: $540,192.86 Shares Owned After: 32,744.93 | Ownership: D (Direct) [Transaction #2] Security: Common Shares Date: 2026-06-08 | Code: S (Open market sale) Shares: -3,886 | Price: $322.08 Total Value: $1,251,602.88 Shares Owned After: 28,858.93 | Ownership: D (Direct) Footnotes: [F1] The Common Shares reported herein as being sold were sold at the same price. --- Derivative Transactions --- [Transaction #1] Security: Options to Acquire Common Shares Date: 2026-06-08 | Code: M (Exercise of derivative) Shares: -3,886 | Price: $0.00 Exercisable: N/A | Expires: 2027-02-23 Shares Owned After: 60,234 | Ownership: D (Direct) Footnotes: [F2] Options vested as follows: 1/3 on February 23, 2018, 1/3 on February 23, 2019 and 1/3 on February 23, 2020. [F3] There are 1,438 options remaining in this tranche. Total includes options from other tranches with different exercise prices, vesting and expiration dates. --- Footnotes (Complete Index) --- F1: The Common Shares reported herein as being sold were sold at the same price. F2: Options vested as follows: 1/3 on February 23, 2018, 1/3 on February 23, 2019 and 1/3 on February 23, 2020. F3: There are 1,438 options remaining in this tranche. Total includes options from other tranches with different exercise prices, vesting and expiration dates. --- Signature --- /s/ /s/ Samantha Froud, Attorney-in-Fact (2026-06-10)